---
title: "Media Gallery"
url: "https://commonwaysystem.org/media/"
description: "Every external video, podcast, and article the Commonway System references, filterable by type, source, and topic."
---

# Media Gallery

External videos, podcasts, and articles related to Commonway System content: real examples, explainers, interviews, and news coverage from outside the guidebook. Each item's blurb explains how it relates to CS content, not a neutral summary of the item itself, and its endorsement label says whether CS agrees with it, includes it for background only, or includes it as a counterexample.

124 of 124 media items

Aligned

## [The Indianapolis Cultural Trail: The Next-Gen in U.S. Protected Bike Lanes](https://www.youtube.com/watch?v=5tcnoGOqIf0)

Streetfilms

Indianapolis built an eight-mile separated trail for walking and cycling through its downtown, converting parking and travel lanes into permanent trail space with its own signage, landscaping, and stormwater design. The Cultural Trail shows a road-adjacent greenway working as transportation infrastructure rather than decoration, which is the core premise of the Commonway System's Road-Adjacent Greenway pattern.

MED-109

Aligned

## [Dutch Countryside Cycling is the Best in the World: 5 Reasons Why](https://www.youtube.com/watch?v=wtjD8zG6Ivw)

On 3 Wheels

Where Dutch rural roads meet villages, the roadway narrows, gains a raised speed table, and switches to block paving, physical cues that tell drivers the road's character has changed. These village entrances are working examples of the Rural-to-Town Gateway pattern, which uses the same deliberate design language to mark the transition from rural road to town street.

MED-110

Context only

## [How I-485 TRANSFORMED Charlotte into a MAJOR American City | Benefits of Ring Roads](https://www.youtube.com/watch?v=XoLibjCj--c)

Mileage Mike

Charlotte's I-485 outer beltway rings the metro area, routing through traffic around the core while shaping where the region grows. The case study illustrates the Commonway System's Beltway / Ring Road pattern, a freeway type the guidebook describes but keeps out of its detailed design scope.

MED-111

Aligned

## [Stop Signs Suck and We Should Get Rid of Them](https://www.youtube.com/watch?v=42oQN7fy_eM)

Not Just Bikes

Not Just Bikes argues that cities install far more stop signs than safety requires, and that removing unwarranted signs can make streets safer, especially for people cycling, citing the Idaho stop law and Dutch practice. The video supports the Commonway System's Situational / Discouraged stance on the All-Way Stop, treating stop control as a tool for specific conditions rather than a default.

MED-112

Aligned

## [How Railroad Crossings Work](https://www.youtube.com/watch?v=9kRJPSVdzlM)

Practical Engineering

Practical Engineering explains how grade crossings detect approaching trains, from simple crossbucks to track circuits that trigger flashing lights and gates with precise timing. The video covers the warning-device hierarchy at the heart of the Commonway System's Railroad Grade Crossing pattern, where a crossing's protection must match its risk.

MED-113

Aligned

## [Why Most Railroad Crossings Have No Gates, No Lights, and No Warning at All](https://www.youtube.com/watch?v=jhj5Zm5NMi8)

Train Curious

Roughly half of America's grade crossings have no gates or lights, marked only by a crossbuck, and this documentary explains why: the cost of active warning, the federal hazard formula that ranks upgrades, and what gates can and cannot prevent. It gives the policy context behind the warning-device decisions the Railroad Grade Crossing pattern treats as a design input.

MED-114

Aligned

## [Sidepath Facility Selection and Design](https://fdotwww.blob.core.windows.net/sitefinity/docs/default-source/content/safety/4-reports/bike-ped/sidepath-facility-selection-and-design.pdf?sfvrsn=88052dd1_0)

Florida Department of Transportation

This FDOT-funded study built a predictive model from 21 Florida roadway sections comparing bicycle crash rates on sidepaths against on-road riding, and found the sidepath wins once the adjacent road is faster than about 40 mph or wider than three lanes. It is the research base for the Commonway System's Road-Adjacent Greenway pattern: a separated path beside a road is the right facility exactly where the road itself is too fast to share.

MED-115

Aligned

## [Trail Crossings](https://www.railstotrails.org/trail-building-toolbox/crossings)

Rails-to-Trails Conservancy

The Conservancy's crossing guide covers the three crossing types in the AASHTO bike guide, including adjacent-path crossings where a trail running parallel to a roadway meets an intersecting street with turning vehicles. It answers the exact design problem the Commonway System's Road-Adjacent Greenway pattern names: how the greenway connects and crosses where it meets the road.

MED-116

Aligned

## [Self-enforcing roadways bringing safety up to speed](https://ict.illinois.edu/news/newsletters/more-newsletters/february-2025/self-enforcing-roadways-bringing-safety-up-to-speed)

Illinois Center for Transportation

The article reports on a joint ICT-IDOT project that analyzed over 1.15 million Illinois crashes against roadway features, finding that wider, emptier-looking roads strongly predict more severe crashes. It documents the self-enforcing (self-explaining) roads principle the Commonway System's Rural-to-Town Gateway pattern relies on: the road's design, not its signs, must tell drivers the character has changed.

MED-117

Aligned

## [Evaluation of Gateway and Low-Cost Traffic-Calming Treatments for Major Routes in Small, Rural Communities](https://ctre.iastate.edu/wp-content/uploads/2018/03/traffic-calming-rural.pdf)

Iowa State University Center for Transportation Research and Education

This FHWA-sponsored study installed full gateway treatments (signing, lane reduction, colored pavement, gateway structures) at the entrances to the Iowa communities of Union and Roland, plus low-cost single measures in three more towns, and measured the speed effects. It is field evidence for the Commonway System's Rural-to-Town Gateway pattern: a deliberate package of physical cues at the town edge slows drivers where the road's character changes.

MED-118

Context only

## [Effectiveness of Ring Roads in Reducing Traffic Congestion in Cities for Long Run: Big Almaty Ring Road Case Study](https://www.mdpi.com/2071-1050/11/18/4973/xml)

Sustainability (MDPI)

This peer-reviewed study reviews ring-road history and post-opening evaluations worldwide and finds that orbital roads give only temporary congestion relief before induced traffic fills them, while shifting accessibility and development toward the suburbs. It describes the dynamics behind the Commonway System's Beltway / Ring Road pattern: a beltway that diverts through traffic today becomes the congestion corridor of the next ring tomorrow.

MED-119

Context only

## [The "Outer Beltway" Is DC's Zombie Highway Project That Won't Stay Dead](https://nyc.streetsblog.org/2017/08/07/the-outer-beltway-is-dcs-zombie-highway-project-that-wont-stay-dead)

Streetsblog NYC

The piece traces decades of attempts to build a second beltway around Washington, DC, with built highway segments like the Intercounty Connector and Route 28 already functioning as a de facto outer ring. It is a case study for the Commonway System's Beltway / Ring Road pattern: even a rejected beltway plan keeps resurfacing, segment by segment, through suburban politics.

MED-120

Aligned

## [HSIP Calms Intersections](http://rosap.ntl.bts.gov/view/dot/89930/dot_89930_DS1.pdf)

Federal Highway Administration

This FHWA brief's "All-Way Stops to Enhance Rural Intersection Safety" section reports North Carolina's program converting two-way-stop intersections to all-way stops, with a 68 percent drop in total crashes and a 77 percent drop in fatal and injury crashes across the first 50 sites, and zero fatal or severe injuries in a 36-site followup. It is the evidence base for the Commonway System's All-Way Stop pattern: adding stop control to every approach is a cheap, proven upgrade where volumes still fit stop control.

MED-121

Context only

## [Several Scranton red lights to be tested as stop signs](https://www.2822news.com/traffic/several-scranton-red-lights-to-be-tested-as-stop-signs/)

28/22 News

Scranton is converting 13 downtown intersections from traffic signals to all-way stops in a 90-day test starting October 19, 2026, with signals flashing red for 30 days then bagged while engineers study the results. It is a live case study of the Commonway System's intersection philosophy in the other direction: removing a signal where all-way stop control may serve drivers and pedestrians better.

MED-122

Aligned

## [Gate Skirts Research at a Highway-Rail Grade Crossing in Ramsey, NJ](https://railroads.fra.dot.gov/elibrary/gate-skirts-research-highway-rail-grade-crossing-ramsey-nj)

Federal Railroad Administration

FRA and the Volpe Center tested a gate skirt, a secondary hanging gate beneath the pedestrian gate, at a New Jersey crossing to stop pedestrians and cyclists from ducking under active gates, and found a positive pedestrian safety benefit. It is an example of the pedestrian treatments the Commonway System's Railroad Grade Crossing pattern calls for: physical devices that close the gap between the warning and the behavior.

MED-123

Aligned

## [Pedestrian channelization](https://gradecrossingtoolkit.fra.dot.gov/Elib/Document/303)

Federal Railroad Administration

FRA's engineering toolkit entry catalogs pedestrian channelization at grade crossings: fencing, bedstead barriers, and maze or Z-crossing layouts that force pedestrians to slow and look toward oncoming trains before crossing. It supplies the design vocabulary for the pedestrian treatments the Commonway System's Railroad Grade Crossing pattern lists as a key hazard area.

MED-124

Aligned

## [Freeways stopped being PRETTY (And that's a shame!)](https://www.youtube.com/watch?v=gzDreswVQAs)

Road Guy Rob

Rob tells the story of the Merritt Parkway as a showcase of landscape architecture, with planted medians and 68 individually designed bridges, then asks why the Interstate highways built two decades later abandoned beauty for pure machine efficiency. It is the Commonway System's parkway pattern at its best, and the freeway-like tradition that followed is exactly why the pattern now carries a Situational status.

MED-090

Aligned

## [America's scenic drives](https://www.youtube.com/watch?v=kh2FSxpGSq4)

CBS Sunday Morning

Conor Knighton tours America's national scenic byways from Oregon to Louisiana, showing how these designated routes are preserved and experienced as journeys worth taking for their own sake. It gives the Commonway System's Scenic Highway / Byway pattern a concrete national reference, including the federal designation program the pattern cites.

MED-091

Aligned

## [Cycling and Heavy Goods Vehicles in the Netherlands (Ep. 295)](https://www.youtube.com/watch?v=FpXDO0NV9Ms)

BicycleDutch

Mark Wagenbuur compiles real interactions between cyclists and truck drivers in the Netherlands, showing how separated cycle infrastructure keeps driver mistakes from turning fatal. It is a working example of the blind-zone safety and physically separated bike lanes the Commonway System specifies for industrial collectors, on roads where freight movement still outranks everything else.

MED-092

Aligned

## [The Best Country in the World for Drivers](https://www.youtube.com/watch?v=d8RRE2rDw4k)

Not Just Bikes

Jason Slaughter argues the Netherlands is the best country for drivers because every road has a single clear purpose, with motorways, distributors, and access streets each designed for exactly one job. It is a working demonstration of the functional classification thinking behind the Commonway System's street types, and of why design speed should follow the road's job rather than habit.

MED-093

Aligned

## [Can you build main streets in the suburbs?](https://www.youtube.com/watch?v=A4XvEAUq8f8)

City Beautiful

Dave Amos compares suburban lifestyle centers with traditional main streets, asking whether main-street character can really be built in the suburbs. It is a direct test of the Commonway System's Main Street pattern, which treats Suburban as an edge case for a typology defined by retail frontage and pedestrian priority.

MED-094

Aligned

## [Why safety and vehicle speed are incompatible goals for street design](https://www.youtube.com/watch?v=Ii4fXlCNh8k)

Smart Growth America

This Smart Growth America video argues that transportation agencies must pick one top priority for each street, speed or safety, and shows how the design changes when safety wins. It states the core tension behind the Commonway System's design speed rule: a street's geometry decides its speed, so the priority has to be chosen before the cross-section is drawn.

MED-095

Aligned

## [How Are Highways Designed?](https://www.youtube.com/watch?v=9XIjqdk69O4)

Practical Engineering

Grady Hillhouse explains how highway geometry, from curves to superelevation, sets the speed drivers actually travel, making design speed a physical property of the road rather than a number on a sign. It is the engineering basis for the Commonway System's rule that design speed always equals posted speed.

MED-096

Aligned

## [Parkways - Transportation](https://www.nps.gov/subjects/transportation/parkways.htm)

National Park Service

NPS describes its parkways as roads designed for scenic motoring through protected corridors, with pull-offs, lower speed limits, and landscape-first design built as 1930s job-creation projects. This is the federal expression of the Commonway System's parkway pattern, where the road is shaped by the landscape instead of by throughput.

MED-097

Context only

## [Roads to inequality: How white supremacy was built into New York's parkways](https://www.beaconjournal.com/in-depth/news/investigations/2021/04/28/new-york-parkway-madison-grant-suburbs-inequality-racism-discrimination/3280562001/)

Journal News (via Akron Beacon Journal)

The investigation traces how Madison Grant's Bronx River Parkway was built for leisurely nature drives by car-owning suburbanites, while Robert Moses' Long Island parkways used low bridges and truck and bus bans that physically kept city bus riders out. It documents the caution behind the Commonway System's Situational rating: a parkway's beauty does not stop its design from deciding who is allowed to use it.

MED-098

Aligned

## [National Scenic Byways Program](https://www.fhwa.dot.gov/hep/scenic_byways/)

Federal Highway Administration

FHWA's official program page explains how roads earn National Scenic Byway or All-American Road designation under 23 U.S.C. Section 162 for outstanding scenic, historic, cultural, natural, recreational, or archaeological qualities, with grants for corridor management plans. It is the authoritative reference for the Commonway System's Scenic Highway / Byway pattern and the exact federal program the page cites.

MED-099

Aligned

## [Seattle Moves Toward Devoting Street Space to Freight](https://www.theurbanist.org/seattle-moves-toward-devoting-street-space-to-freight/)

The Urbanist

The article covers Seattle DOT's policy to give freight priority over other modes inside the city's Manufacturing and Industrial Centers, including freight-only and freight-and-bus lanes. It shows the Commonway System's Industrial Collector principle in practice: on streets that serve industrial land use, freight movement outranks other modes and gets dedicated space.

MED-100

Aligned

## [Will Florida's New Approach to Urban Streets Reduce Its Traffic Carnage?](https://usa.streetsblog.org/2017/10/03/will-floridas-new-approach-to-urban-streets-reduce-its-traffic-carnage)

Streetsblog USA

The piece reports on FDOT's adoption of eight context classifications, from rural town to urban core, that set allowable design speeds, lane widths, and geometries from surrounding land use rather than functional class alone. It is a real-world example of the Commonway System's Character Transect idea: the same road deliberately changes character as the place around it changes.

MED-101

Aligned

## [Identifying street environments](https://www.movementandplace.nsw.gov.au/place-and-network/identifying-street-environments)

Movement and Place, Transport for NSW

NSW's official framework sorts roads and streets into four environments, civic spaces, local streets, main streets, and main roads, by weighing movement function against place intensity, with 22 street types under them. It is the closest working government equivalent to the Link and Place thinking behind the Commonway System's Character Transect pattern.

MED-102

Aligned

## [Town entry gateway treatments](https://www.movementandplace.nsw.gov.au/standards/design-solutions/town-entry-gateway-treatments)

Movement and Place, Transport for NSW

This design solution specifies what goes where a speed zone changes at a town or village arrival: enhanced signage, lane narrowing, and a colored threshold, with a real installation on the Monaro Highway at Bredbo. It is a concrete example of the Commonway System's density step-down principle: the road's design changes deliberately to tell drivers the density tier has changed.

MED-103

Aligned

## [A Driving Simulator-Based Assessment of Traffic Calming Measures at High-to-Low Speed Transition Zones](https://www.mdpi.com/2624-6511/8/5/147)

Smart Cities (MDPI)

The study tested seven gateway designs in a driving simulator and found physical measures like chicanes and road narrowing cut speeds at rural-to-urban transitions, while planting and markings alone did little. It supplies evidence for the Commonway System's claim that transitions between density tiers need deliberate design change, not just a new speed limit sign.

MED-104

Aligned

## [Skyline Drive and Shenandoah National Park](https://www.iheart.com/podcast/105-stuff-you-missed-in-histor-21124503/episode/skyline-drive-shenandoah-national-park-278682527/)

Stuff You Missed in History Class

The episode traces how Skyline Drive and the Blue Ridge Parkway were designed as naturalistic scenic drives through the Southern Appalachians, with NPS landscape architects shaping the road to frame the scenery and serve the drive itself. It gives the history behind the Commonway System's Scenic Highway / Byway pattern: a low-density, low-development-pressure arterial where the journey is the point.

MED-105

Aligned

## [Episode 259: The Urban Freight Lab](https://streetsblog.libsyn.com/episode-259-the-urban-freight-lab)

Talking Headways

Jeff Wood interviews University of Washington researcher Anne Goodchild about what urban transportation debates miss on freight, and the delivery strategies her Urban Freight Lab is testing for city streets. It frames the design problem the Commonway System's Industrial Collector pattern answers: freight needs are real and constant, so the street should be designed for trucks deliberately rather than treating them as an afterthought.

MED-106

Aligned

## [America's deadliest road, explained](https://www.youtube.com/watch?v=0-nthHT-J1k)

Vox

Vox examines a one-kilometer stretch of US-19 in Florida, the deadliest of 60 pedestrian-fatality hotspots in a national study, and shows how eight lanes, 45 mph speeds and crossings nearly a kilometer apart make deaths predictable rather than accidental. It is a vivid case study of the Stroad problem and of the crosswalk, signal, driveway and lane-removal fixes the Commonway System specifies.

MED-107

Aligned

## [Can this "HAWK" STOP LIGHT make walking feel SAFE again?](https://www.youtube.com/watch?v=AHX8ezW2XGs)

Road Guy Rob

Rob explains why painted mid-block crosswalks and flashing yellow lights are so often ignored, then shows how the Pedestrian Hybrid Beacon (HAWK), which stays dark until a pedestrian calls it and then commands a full stop, reaches 97 to 99 percent driver compliance, with Tucson's warrant and equity criteria. It supports the Commonway System's Pedestrian Hybrid Beacon pattern directly, and shows why the Crosswalk, RRFB and Pedestrian Signal patterns rate different devices differently.

MED-108

Aligned

## [Crossing the Street Shouldn't Be Deadly (but it is)](https://www.youtube.com/watch?v=_ByEBjf9ktY)

Not Just Bikes

This video walks through pedestrian crossing designs, from beg buttons and signal phases to raised crossings, HAWK beacons, and continuous sidewalks. It shows how crossing geometry and timing decide whether walking is safe, the same question behind the Commonway System's crosswalk and crossing elements.

MED-022

Aligned

## [The Bike Lanes You Can't See - Ontvlechten](https://www.youtube.com/watch?v=c1l75QqRR48)

Not Just Bikes

The video explains ontvlechten, the Dutch practice of disentangling car and bicycle traffic into separate hierarchical networks. It is a worked example of the Commonway System's cycling facilities and network patterns, showing how filtered permeability keeps bike routes safe and direct.

MED-023

Aligned

## [Trams are Great! So why are the Streetcars SO BAD!?](https://www.youtube.com/watch?v=HhQxNHrD6fA)

Not Just Bikes

The video diagnoses why North American streetcars underperform, blaming mixed-traffic operation, signal delay, and poor stop design. Its proposed fixes, dedicated lanes, signal priority, and better stops, mirror the transit patterns in the Commonway System.

MED-024

Aligned

## [Roundabout with safe cycling facilities (Netherlands)](https://www.youtube.com/watch?v=-VapKuLqJ9M)

BicycleDutch

A visual tour of a Dutch roundabout built with protected cycling facilities. It serves as a real-world reference for the Commonway System's roundabout and protected cycling intersection patterns.

MED-025

Context only

## [Rolling out a red carpet for cyclists (Netherlands)](https://www.youtube.com/watch?v=eaE4KOZzQOg)

BicycleDutch

The video shows the red-asphalt surfacing the Netherlands uses to mark and protect cycle paths. It illustrates the kind of legible, dedicated cycling facility described in the Commonway System's bike lane and greenway patterns.

MED-026

Aligned

## [The Problem with Vancouver's Boundary Rd BRT (w/ @MovementYVR)](https://www.youtube.com/watch?v=n2TuO_f38FM)

RMTransit

The video examines TransLink's Boundary Road BRT planning and warns against a watered-down "BRT-lite" that sacrifices route quality. It connects directly to the Commonway System's transit priority and arterial transit guidance, including the tradeoff between parking lanes and transit lanes.

MED-027

Aligned

## [A Plan to fix Toronto's Streetcars](https://www.youtube.com/watch?v=DmSj162rSoc)

RMTransit

The video proposes concrete fixes for Toronto's streetcar network: traffic and signal priority, upgraded stops, and operational improvements. These map to the Commonway System's transit priority retrofit and transit patterns.

MED-028

Aligned

## [Three ways to FIX a STOP LIGHT (so drivers ACTUALLY STOP!)](https://www.youtube.com/watch?v=uYnEdbRLmJM)

Road Guy Rob

The video covers practical signal-design fixes that cut red-light running, from better visibility to slower approaches and fewer stops. It is applied evidence for the Commonway System's signal intersection pattern.

MED-029

Context only

## [Would you drive on this FLIP-FLOPPED interchange? (It's better in every way!)](https://www.youtube.com/watch?v=40OUCb1cODY)

Road Guy Rob

The video compares diverging diamond interchanges with conventional diamonds, and looks at SPUIs and pedestrian treatment. It gives the Commonway System's grade-separated interchange pattern a vivid real-world counterpart.

MED-030

Context only

## [Are some yellow lights TOO SHORT? (Math to check it!)](https://www.youtube.com/watch?v=kyFLRXSxgPw)

Road Guy Rob

The video works through the math behind yellow and all-red signal timing, including the dilemma zone. It grounds the Commonway System's signal intersection pattern in the timing details that make signals safe.

MED-031

Context only

## [These Intersections Are Changing the Roads Forever](https://www.youtube.com/watch?v=SFtDqUVHH6o)

Streetcraft

The video tours modern intersection forms: diverging diamonds, roundabouts, and continuous flow intersections. It surveys the same intersection family the Commonway System catalogs, from roundabouts to grade-separated designs.

MED-032

Counterexample

## [These Intersections Should Be Illegal](https://www.youtube.com/watch?v=KGoV74jtE3Q)

Streetcraft

The video analyzes four badly designed American intersections, including an awkward roundabout and highway ramps that strand bike lanes. It is a cautionary companion to the Commonway System's intersection and cycling patterns, showing what failure looks like.

MED-033

Aligned

## [What Happens If You Remove a Highway?](https://www.youtube.com/watch?v=EDp3JIXvOjY)

Streetcraft

The video looks at cities that removed urban highways, from Rochester's Inner Loop to Seattle's Alaskan Way Viaduct, and what replaced them. It is a real-world case for the Commonway System's road diet and corridor reallocation strategies.

MED-034

Aligned

## [Road and Street Design In the Netherlands](https://www.youtube.com/watch?v=IGfdpDfw8Ms)

Streetscapes

The video explains the Dutch road hierarchy of through, distributor, and access roads, as applied in Groningen with reference to the CROW manual. It is a clean overview of the functional classification thinking behind the Commonway System's street types guide.

MED-035

Aligned

## [How to design a great street](https://www.youtube.com/watch?v=xov7Ao_fPwQ)

City Beautiful

The video distills Allan Jacobs' street design principles: pedestrian space, climate comfort, enclosure, and active facades. It is a friendly introduction to the same street-design ideas the Commonway System's main street and boulevard patterns codify.

MED-036

Aligned

## [Freeways almost ruined San Francisco](https://www.youtube.com/watch?v=_nSvy8jcNbU)

City Beautiful

The video recounts the 1950s and 60s freeway revolts and the removal of San Francisco's Embarcadero Freeway. It shows the history behind the Commonway System's skepticism of urban highway expansion and its preference for streets over stroads.

MED-037

Aligned

## [Bike lanes are not good enough](https://www.youtube.com/watch?v=p36skNda3KE)

City Beautiful

The video argues that painted bike lanes fail and shows what works instead: cycle tracks, protected intersections, advisory lanes, plus a road-diet case study. It makes the case for the protected cycling facilities the Commonway System's bike patterns specify.

MED-038

Aligned

## [Why protected bike lanes are more valuable than parking spaces](https://www.youtube.com/watch?v=E85HMNJix_o)

Vox

The video uses New York's 9th Avenue parking-protected bike lane to show that trading parking for protected cycling improves safety and even retail sales. It is evidence for the Commonway System's parking-lane reallocation retrofit strategy.

MED-039

Context only

## [How highways make traffic worse](https://www.youtube.com/watch?v=2z7o3sRxA5g)

Vox

Explains induced demand through the Katy Freeway widening and why transit alone falls short. Its Boston example is mischaracterized: the freeway was buried, not removed.

MED-040

Aligned

## [A Flaw In Street Design May Be Costing Lives - Cheddar Explains](https://www.youtube.com/watch?v=yyWYvovLvMQ)

Cheddar

The video explains "forgiving design," the wide clear zones built for driver error, and draws the roads-versus-streets distinction. It covers the design-speed thinking at the heart of the Commonway System's street types and design speed guides.

MED-041

Context only

## [The Big Problem With Cloverleaf Interchanges - Cheddar Explains](https://www.youtube.com/watch?v=7GTZRSPry70)

Cheddar

The video breaks down the cloverleaf's weaving problem and surveys alternatives like flyovers, diverging diamonds, and roundabouts. It is a direct video companion to the Commonway System's grade-separated interchange pattern.

MED-042

Aligned

## [How Expanding Bike Lanes Can Actually Decrease Traffic - Cheddar Explains](https://www.youtube.com/watch?v=XN-tSpQZmYk)

Cheddar

The video cites New York DOT data showing protected bike lanes cut injuries while holding vehicle travel times steady. It supplies the measured results behind the Commonway System's protected bike lane guidance.

MED-043

Aligned

## [Are Parking Lots Ruining Your City?](https://www.youtube.com/watch?v=vUhOFUQDLQk)

Strong Towns

The video traces Fayetteville, Arkansas eliminating parking minimums in 2015 and tallies the land-use and economic costs of mandated parking. It is a case study for the Commonway System's surface parking and density guidance.

MED-044

Aligned

## [How Carson City's Main Stroad Became a Street](https://www.youtube.com/watch?v=VMiB9Men2TY)

Yet Another Urbanist

The video documents Carson Street's conversion from a four-lane stroad to a two-lane street with wide sidewalks and a plaza, including the traffic studies and parking reclamation behind it. It is a full real-world walkthrough of the Commonway System's stroad pattern and road diet retrofits.

MED-045

Aligned

## [Why Parking Minimums Almost Destroyed My Hometown and How We Repealed Them](https://www.strongtowns.org/journal/2017-11-22-how-parking-minimums-almost-destroyed-my-hometown-and-how-we-repealed-them)

Strong Towns

A Sandpoint, Idaho council member tells how parking minimums nearly forced a bank to demolish local businesses for 200 mandated spaces, and how repealing them downtown brought quick business growth. It is a first-person case study for the Commonway System's parking reform and density guidance.

MED-046

Aligned

## [The Airtight Case for Road Diets](https://usa.streetsblog.org/2014/10/29/the-airtight-case-for-road-diets)

Streetsblog USA

The article lays out the evidence for four-to-three lane conversions, citing FHWA data showing 20 to 50 percent crash reductions with minimal capacity effects. It is the evidence summary behind the Commonway System's four-to-three road diet retrofit strategy.

MED-047

Aligned

## [More highways, more driving, more emissions: Explaining "induced demand"](https://t4america.org/2021/10/20/say-hello-to-induced-demand/)

Transportation for America

Explains induced demand with hard numbers: from 1993 to 2017, the 100 largest US urbanized areas added 42 percent more freeway lane-miles while population grew 32 percent and delay rose 144 percent. A clear explainer for the concept at the core of the Commonway System's skepticism of highway expansion.

MED-048

Aligned

## [What's Behind Connecticut's Growing Roundabout Push?](https://www.roadsbridges.com/traffic-safety/news/55406667/whats-behind-connecticuts-growing-roundabout-push)

Roads & Bridges

The article reports on Connecticut DOT's roundabout program, including a five-intersection study showing severe crashes down 81 percent after conversion. It is real-world evidence for the Commonway System's roundabouts-first intersection philosophy.

MED-049

Aligned

## [Urban Bikeway Design Guide: Protected Bike Lanes](https://nacto.org/latest/urban-bikeway-design-guide-protected-bike-lanes/)

NACTO

This excerpt from NACTO's Urban Bikeway Design Guide covers protected bike lane design, safety evidence, and applicability thresholds. It is the technical companion to the Commonway System's protected bike lane element.

MED-050

Aligned

## [Dr Rachel Aldred and Asa Thomas for The Guardian on how low-traffic neighbourhoods do not push traffic onto other roads](https://www.westminster.ac.uk/news/dr-rachel-aldred-and-asa-thomas-for-the-guardian-on-how-low-traffic-neighbourhoods-do-not-push-traffic-onto-other-roads)

University of Westminster

The piece summarizes peer-reviewed research on 46 London low-traffic neighbourhoods, finding motor traffic fell by a third inside with little displacement to boundary roads. It is direct evidence for the Commonway System's modal filtering retrofit strategy.

MED-051

Aligned

## [ITDP Releases First-Ever Bus Rapid Transit Guide for U.S. Cities](https://itdp.org/2019/09/26/itdp-releases-first-ever-brt-guide-for-u-s-cities/)

ITDP

The article announces ITDP's BRT implementation guide for US cities, covering corridor selection, equitable planning, and case studies from Hartford, Albuquerque, and Richmond. It supports the Commonway System's arterial transit pattern and transit priority guidance.

MED-052

Aligned

## [20mph speed limits do save lives, and most road users respond to them well, study suggests](https://www.sciencefocus.com/comment/20mph-speed-limits-save-lives)

BBC Science Focus

The article reports on a study of Edinburgh and Belfast showing citywide 20 mph limits cut road deaths by nearly a quarter and serious injuries by a third. It backs the Commonway System's signature 20 mph maximum on local streets.

MED-053

Aligned

## [3 Reasons to Turn These One-Way Streets into Two-Ways](https://archive.strongtowns.org/journal/2016/8/4/farwell-prospect-one-way-two-way-streets)

Strong Towns

A Milwaukee resident argues against the one-way couplet outside her door, citing safety, local business exposure, and simpler navigation, with Louisville data showing collisions fell after conversion. It maps to the Commonway System's one-way to two-way conversion retrofit.

MED-054

Aligned

## [Could COVID-19 Finally be the Superblock's U.S. Moment?](https://usa.streetsblog.org/2020/11/13/could-covid-19-finally-be-the-superblocks-u-s-moment)

Streetsblog USA

The article covers Barcelona's superblock expansion and argues US cities test-drove the concept through pandemic Slow Streets. It is a readable introduction to the Commonway System's superblock retrofit strategy.

MED-055

Aligned

## [Rochester gave up on a highway and filled it in. Should Baltimore?](https://www.thebanner.com/community/transportation/rochester-inner-loop-highway-removal-project-KA3KUYYNT5DO5KRAZIPQHCXZSQ/)

The Baltimore Banner

This long-form report traces Rochester's Inner Loop East removal, which turned a sunken expressway trench into homes, a bike path, and a boulevard. It is a deep single-city case for the Commonway System's highway-removal reasoning and corridor reallocation strategies.

MED-056

Aligned

## [All we are saying is give bus rapid transit a chance: Train-like service at a price we can afford](https://chi.streetsblog.org/2026/04/02/all-we-are-saying-is-give-bus-rapid-transit-a-chance-train-like-service-at-a-price-we-can-afford)

Streetsblog Chicago

A civil engineer lays out the five elements of true BRT and recounts why Chicago's Ashland BRT failed politically while making the case for a Western Avenue line. It covers the transit priority and boarding details in the Commonway System's arterial transit guidance.

MED-057

Context only

## [Episode 111: Why Congestion Pricing Matters with Diana Lind](https://thewaroncars.org/episode-111-why-congestion-pricing-matters-with-diana-lind-final-web-transcript/)

The War on Cars

Diana Lind explains how New York's congestion pricing works, why London's scheme spread low-emission zones across Europe, and how toll revenue funds transit. It connects to the Commonway System's transit guidance by showing how pricing can pay for the alternatives to driving.

MED-058

Aligned

## [Ep 1: Stacy Thompson - Tactical Transit in Boston](https://high-frequency.simplecast.com/episodes/tactical-transit-in-boston-v2LQFsUn)

High Frequency

The episode describes Boston's 2017 pop-up bus lanes, which made trips about 25 percent faster with 94 percent rider approval. It is a real-world demo of the Commonway System's transit priority lane retrofit, including converting parking lanes to bus lanes.

MED-059

Aligned

## [Trompe L'oeil (Episode 599)](https://99percentinvisible.org/episode/599-trompe-loeil/transcript/)

99% Invisible

The episode's "Built for Speed" segment shows how highway design language, wide lanes and forgiving geometry, tricks drivers into speeding, especially when grafted onto suburban arterials. It illustrates the design-speed thinking behind the Commonway System's street types and stroad analysis.

MED-060

Aligned

## [Ep 3: Beth Osborne - Failures of the Federal Transportation Program](https://high-frequency.simplecast.com/episodes/ep-3-beth-osborne-failures-of-the-federal-transportation-program-P9lqqRjO)

High Frequency

Beth Osborne explains why the federal transportation program keeps failing, from highways prioritized over maintenance to speed-based metrics that ignore safety. It frames the policy backdrop for the Commonway System's design-speed-equals-posted-speed rule.

MED-061

Aligned

## [Episode 102: CONSPIRACY!](https://thewaroncars.org/episode-102-conspiracy-final-web-transcript/)

The War on Cars

The episode uses the 15-minute-city panic as a frame to explain real traffic circulation plans, from Ghent and Groningen to Barcelona's superblocks and London's low-traffic neighbourhoods. It is a substantive tour of the modal filtering measures the Commonway System catalogs.

MED-062

Aligned

## [How Money for Highways Could Have Built 36 Paris Metros (Ep 590)](https://usa.streetsblog.org/2026/08/20/talking-headways-podcast-how-money-for-highways-could-have-built-36-paris-metros)

Talking Headways

The episode covers a data project mapping the tax base and land value that urban freeways stripped from 142 American cities. It documents the costs behind the Commonway System's skepticism of urban highway building.

MED-063

Aligned

## [Parking Reform with Tony Jordan (Ep 558)](https://streetsblog.libsyn.com/episode-558-parking-reform-with-tony-jordan)

Talking Headways

Tony Jordan of the Parking Reform Network makes the case against arbitrary parking requirements and for their abolition. It is an interview-length companion to the Commonway System's parking reform guidance.

MED-064

Aligned

## [Fabulous Ferndale (Ep 436)](https://theoverheadwire.com/2023/06/unedited-podcast-transcript-436-fabulous-ferndale/)

The Overhead Wire

Ferndale, Michigan's mayor describes the city's road diet of eight-lane Woodward Avenue and the practical politics of working with the state DOT. It is a practitioner-level case study for the Commonway System's road diet strategies.

MED-065

Context only

## [Let's Get Moving](https://omny.fm/shows/monocle-24-the-urbanist/let-s-get-moving)

The Urbanist

This survey episode looks at cities pushing to reduce car dependence and promote public transport, with reports from three cities getting it right. It works as background context for the Commonway System's transit and street design sections.

MED-066

Aligned

## [A Network First Approach (Ep 349)](https://www.activetowns.org/2026/07/24/a-network-first-approach/)

Active Towns Podcast

The episode lays out a "Network First" strategy for building complete, high-comfort bike networks quickly on low-stress streets. It covers the network build-out thinking behind the Commonway System's cycling facility patterns.

MED-067

Aligned

## [Open Plans (Ep 341)](https://www.activetowns.org/2026/05/28/open-plans/)

Active Towns Podcast

The episode covers Open Plans' New York campaigns for school streets, low-traffic neighbourhoods, and intersection daylighting. It shows the Commonway System's modal filtering and traffic calming measures in campaign form.

MED-068

Aligned

## [A Better Block Versus Years of Planning](https://getpodcast.com/podcast/the-strong-towns-podcast/a-better-block-versus-years-of-planning_43c11c7b5e)

The Strong Towns Podcast

Better Block's Krista Nightengale explains the temporary-build, test-and-adjust method for redesigning streets instead of studying them for years. It mirrors the Commonway System's build spectrum, which favors demonstration and pilot stages before permanent construction.

MED-069

Aligned

## [This Atlanta Corridor Makes Walking Normal and Deadly](https://getpodcast.com/podcast/the-strong-towns-podcast/this-atlanta-corridor-makes-walking-normal-and-deadly_23bd2e00f8)

The Strong Towns Podcast

The episode examines Atlanta's Buford Highway, a six-to-eight-lane arterial where over 20 percent of trips happen outside a car, and the walk audits that exposed it. It is a vivid case study of the stroad problem the Commonway System classifies as Avoid.

MED-070

Aligned

## [How Do We Design for Drivers?](https://podcast.strongtowns.org/e/how-do-we-design-for-drivers/)

The Strong Towns Podcast

Guests from Happy Cities and Mobycon argue that people-centered places still have to work for drivers, borrowing the Dutch idea that slower can be faster when trips feel steady and predictable. It offers a distinct angle on the design-speed philosophy behind the Commonway System's street patterns.

MED-071

Aligned

## [Can U.S. Cities Build Narrow European Streets?](https://www.youtube.com/watch?v=iv9fWEekFUM)

City Beautiful

The video contrasts rigid, car-scaled American grids with the organic narrow streets of older European cities, using Philadelphia's Elfreth's Alley and Quince Street as rare U.S. examples, and names fire-truck access, parking minimums and zoning as the barriers to building more. It is a direct look at the Commonway System's Grid and Organic/Irregular network patterns and the narrow, shared local street patterns, from Alley to Living Street and Pedestrian Plaza.

MED-072

Aligned

## [SR 104 at Shine Road/Paradise Bay Road and SR 19 - Intersection Safety Improvement Project](https://www.youtube.com/watch?v=12IxSr9f2DM)

Washington State DOT

This WSDOT video documents a real Intersection Control Evaluation for a crash-prone intersection near the Hood Canal Bridge, weighing safety, operations, and traffic volumes before recommending a metered roundabout. It shows the Commonway System's ICE process working in practice, from staged comparison of control alternatives to a documented selection.

MED-073

Aligned

## [Why American Cities Are Broke - The Growth Ponzi Scheme \[ST03\]](https://www.youtube.com/watch?v=7IsMeKl-Sv0)

Not Just Bikes

Jason Slaughter explains how car-dependent North American cities take on long-term infrastructure liabilities their tax base cannot sustain, functioning like a Ponzi scheme. It frames the whole funding problem the Commonway System's eight financing mechanisms sit inside, with graphical examples of the costs and a Canadian case study.

MED-074

Aligned

## ["You deserve a street that is safe, enjoyable, and pleasant" - Complete Streets in Louisville, KY](https://www.youtube.com/watch?v=37GROxKdOtE)

National Complete Streets Coalition

The National Complete Streets Coalition tells the story of Louisville's Complete Streets ordinance, showing how the policy guides city leaders, advocates, and neighbors toward safer streets. It is a concrete example of the Complete Streets policy mechanism the Commonway System lists, treating the ordinance itself as the legal tool.

MED-075

Aligned

## [The Wrong Way to Set Speed Limits \[ST06\]](https://www.youtube.com/watch?v=bglWCuCMSWc)

Not Just Bikes

The video explains how speed limits are actually decided in North America, covering the 85th percentile technique, where it makes sense and where it does not, and how to make drivers slow down. It answers the "how does a change like this get decided" question at the heart of the Commonway System's process method, with speed-limit changes as a named example.

MED-076

Context only

## [The Insane Ways Traffic Engineers Try to Make Streets 'Safe' For Walking](https://www.youtube.com/watch?v=3HCDFczGh84)

CityNerd

Ray Delahanty examines whether pedestrian crossing devices like RRFBs and HAWK signals actually work and how engineers decide when and where to install them. It covers the engineering decision process behind crosswalk requests, one of the Commonway System's named examples of changes residents ask for.

MED-077

Context only

## [Why Virginia Has America's Strangest County System](https://www.youtube.com/watch?v=ZfhV7Z5raZc)

Beaver Geography

The video walks through Virginia's independent cities and consolidated city-counties, showing how those structures change who governs and taxes what. It makes concrete two of the Commonway System's named exceptions, where the normal city-inside-a-county pattern does not apply.

MED-078

Context only

## [Why Metro Detroit subdivision roads are so expensive to fix; and what it takes to get yours repaved](https://www.youtube.com/watch?v=ID-koiAlInU)

WDIV Local 4 News

This news report explains Michigan's county road commission system, which maintains township roads with no taxing authority of its own and depends on resident-petitioned special assessment districts. It is a road-specific illustration of the Commonway System's Michigan-style road commission exception.

MED-079

Aligned

## [Intersection Control Evaluation](https://highways.fhwa.dot.gov/safety/intersection-safety/ice)

Federal Highway Administration

FHWA's official explainer defines ICE as a data-driven, staged framework for screening intersection alternatives and selecting the control that performs best for a specific location. It is the authoritative reference behind the Commonway System's ICE process, including the SPICE, CAP-X, and life-cycle cost tools agencies use.

MED-080

Aligned

## [Road Safety Audits (RSA)](https://highways.dot.gov/safety/data-analysis-tools/systemic/road-safety-audits-rsa)

Federal Highway Administration

FHWA defines a road safety audit as a formal safety examination of an existing or future road by an independent, multidisciplinary team, usable at any project stage and any project size. It is the authoritative reference for the Commonway System's RSA process, answering the two central audit questions of what creates risk and what could mitigate it.

MED-081

Aligned

## [The Impact Fee Illusion](https://www.strongtowns.org/journal/2026-2-4-the-impact-fee-illusion)

Strong Towns

Edward Erfurt examines development impact fees as a general financing tool, arguing the "growth pays for growth" framing is an illusion because one-time payments fund construction but not ongoing maintenance. It is a tools-level discussion of the impact-fee mechanism the Commonway System catalogs, using Winter Garden, Florida's fee increase as illustration.

MED-082

Aligned

## [Complete Streets Policy Framework](https://www.smartgrowthamerica.org/knowledge-hub/resources/elements-complete-streets-policy/)

Smart Growth America / National Complete Streets Coalition

The Coalition's current best-practice guide lays out the 10 elements of a strong Complete Streets policy, from commitment and equity prioritization to design guidance and implementation planning. It is the general reference for the Complete Streets policy mechanism the Commonway System lists, written for any level of government rather than one city's story.

MED-083

Aligned

## [States Looking to Sell Some Roads to Cities and Towns](https://www.governing.com/news/headlines/states-looking-to-sell-some-roads-to-cit.html)

Governing

Daniel C. Vock explains which level of government owns which roads and how that ownership determines who can change a street, with a Beaufort, SC example of a city blocked from narrowing lanes on state-owned streets. It directly answers the Commonway System's core question of who has authority over a specific road.

MED-084

Context only

## [Bill Taft: Here's how we fill Unigov's proverbial potholes](https://www.ibj.com/articles/bill-taft-heres-how-we-fill-unigovs-proverbial-potholes)

Indianapolis Business Journal

Bill Taft argues Indianapolis's crumbling streets stem from Unigov's structure, which saddled the consolidated city-county with vast cheaply built suburban street mileage and a maintenance backlog estimated at over $1 billion per year. It makes the Commonway System's consolidated city-county exception concrete for roads, showing how consolidation reshapes a street network's costs.

MED-085

Context only

## [Highways and Highway Safety on Indian Lands](https://www.congress.gov/crs-product/R44359)

Congressional Research Service

This nonpartisan report explains tribal transportation sovereignty, from BIA administration through the Tribal Transportation Program, and documents the mixed ownership of about 157,000 miles of roads on Indian lands. It is the authoritative reference for the Commonway System's tribal-land exception, where jurisdiction follows sovereignty rather than geography.

MED-086

Aligned

## [Talking Headways Podcast: This is Not the TIF You're Looking For](https://usa.streetsblog.org/2018/12/06/talking-headways-podcast-this-is-not-the-tif-youre-looking-for)

Talking Headways

Jeff Wood interviews ASU professor Deborah Salon on location value capture, walking through how transit systems raise the value of the places they serve and where tools like tax increment financing should and should not be used. It treats TIF as one value-capture mechanism among several, matching the Commonway System's tools-level treatment of financing.

MED-087

Aligned

## [Talking Headways Podcast: Lessons from Quick-Build Street Projects](https://usa.streetsblog.org/2024/03/21/talking-headways-podcast-lessons-from-quick-build-street-projects)

Talking Headways

Jeff Wood interviews Smart Growth America's Heidi Simon on how local governments and advocates work through state DOT permitting to change streets via quick-build projects. It matches the Commonway System's "how governments process requests" section as a general process discussion rather than one city's project.

MED-088

Aligned

## [The Intersection That Makes Left Turns Impossible](https://www.youtube.com/watch?v=3nLK9GzfqHA)

Safe By Design

This video explains how the Restricted Crossing U-Turn removes left turns and crossing movements from the side street, with crash-reduction results from Alabama, Nebraska and North Carolina and an honest look at the longer pedestrian crossings it can create. It is a close companion to the Commonway System's RCUT pattern and retrofit strategy, and to the related Median U-Turn and Displaced Left-Turn designs.

MED-089

Aligned

## [The Key to Slowing Traffic is Street Design, Not Speed Limits](https://archive.strongtowns.org/journal/2021/8/6/the-key-to-slowing-traffic-is-street-design-not-speed-limits)

Strong Towns

Makes the case, with side-by-side street photos, that a posted number on a sign does not change driver behavior the way lane width, block length, and sightlines do, the same self-enforcing-design principle behind CS's own design-speed-equals-posted-speed rule.

MED-021

Aligned

## [The Dutch Solution for Safer Sidewalks - Continuous Sidewalks](https://www.youtube.com/watch?v=9OfBpQgLXUc)

Not Just Bikes

Shows the same sidewalk-continuity concept behind Continuous Sidewalk / Raised Junction in practice: the roadway rises to meet the sidewalk at a crossing, rather than the sidewalk dropping to meet the road, so geometry itself signals the priority shift.

MED-001

Aligned

## [The Reason Our Streets Switched to Cul-De-Sacs](https://www.youtube.com/watch?v=d9vDcfH03gs)

City Beautiful

Traces the postwar shift from connected grid networks to tree-shaped cul-de-sac subdivisions, then covers the same shared-use-path connector strategy CS's Network Reconnection retrofit recommends for stitching disconnected cul-de-sacs back into the surrounding network.

MED-002

Aligned

## [Why do so many U.S. cities have gridded streets?](https://www.youtube.com/watch?v=KUDVP6aRS1Y)

City Beautiful

Traces how the grid became the default American street pattern, from William Penn's Philadelphia through Jefferson's Midwest land ordinances, historical background for why the Grid network topology pattern is so dominant in U.S. contexts.

MED-003

Aligned

## [Are Streets Too Complicated Now?](https://www.youtube.com/watch?v=u1Xs5EA5_uU)

City Beautiful

Asks whether today's proliferation of lines, signals, and lane types on streets is overcomplication or a needed response to modern demands, a question that runs directly through CS's Element-scale catalog and the density-tiered Corridor retrofit paths this video is tagged to.

MED-004

Aligned

## [Dutch-style intersection design: bike-friendly](https://www.youtube.com/watch?v=yCzi1Q4xCTA)

BicycleDutch

Shows the protected-intersection design vocabulary, continuous cycle tracks, corner refuge islands, separated signal phasing, that underpins CS's Protected Intersection pattern and the Corridor retrofit paths built around it.

MED-005

Aligned

## [Why Aren't Dangerous Drivers Punished?](https://www.youtube.com/watch?v=dHRfClVJg70)

Global Cycling Network

Traces why traffic law rarely punishes road violence proportionally, then makes the case CS already builds on: infrastructure should be designed so mistakes aren't fatal, rather than relying on punishment after the fact.

MED-006

Aligned

## [You've Been Lied To About Roads For 60 Years](https://www.youtube.com/watch?v=CVq7XOXkg1U)

Global Cycling Network

Covers "junk roads," traffic-model incentives to overbuild, and the trillion-dollar cost of designing roads around growth projections that the roads themselves inflate.

MED-007

Aligned

## [More Lanes Are (Still) A Bad Thing](https://www.youtube.com/watch?v=CHZwOAIect4)

Not Just Bikes

Separates induced from latent demand, then covers traffic evaporation, Braess's Paradox, and the Dutch one-lane-plus-transit cross-section as the alternative.

MED-008

Aligned

## [Why Amsterdam is Removing 10,000 Parking Spaces](https://www.youtube.com/watch?v=mXLqrMljdfU)

Not Just Bikes

Documents Amsterdam's on-street parking reduction through permit attrition and street redesigns, including the tradeoff of a large replacement garage inducing more driving nearby.

MED-009

Aligned

## [Why the Dutch Wait Less at Traffic Lights](https://www.youtube.com/watch?v=knbVWXzL4-4)

Not Just Bikes

Breaks down Dutch traffic-responsive signal timing, independent phasing, transit signal priority, and no-right-turn-on-red as a pedestrian/cyclist safety measure.

MED-010

Aligned

## [Stroads are Ugly, Expensive, and Dangerous](https://www.youtube.com/watch?v=ORzNZUeUHAM)

Not Just Bikes

The definitive explainer on stroads, and lays out the Dutch three-tier road/street classification system that CS's own Functional Classification structure closely mirrors.

MED-011

Aligned

## [Can we make cities car free?](https://www.youtube.com/watch?v=g9-9CxCxrVE)

City Beautiful

Covers Oslo's parking-elimination approach, Barcelona's superblocks, and Houten's ring-road-with-car-free-interior model, each a different route to the same modal-filtering goal.

MED-012

Aligned

## [Why America Won't Copy Sweden's Cheap Highway Fix](https://www.youtube.com/watch?v=jyNEnYaBszk)

Safe By Design

Explains Sweden's 2+1 alternating-passing-lane cable-barrier retrofit and the specific AASHTO Green Book barriers (literally) that have kept the same fix from scaling in the US.

MED-013

Context only

## [America Built the Wrong Roundabout (The Dutch Didn't)](https://www.youtube.com/watch?v=CKjTkXljhWc)

Safe By Design

Traces the turbo roundabout's origin and safety data, but also reports the Fietsersbond's documented cyclist/pedestrian crossing hazards at turbo roundabouts directly, worth noting since it complicates a clean "aligned" label.

MED-014

Aligned

## [Are Roundabouts Actually Better Than Traffic Lights?](https://www.youtube.com/watch?v=012fMI3TdRo)

Streetcraft

A real head-to-head test (Carmel, IN) backing the case for roundabouts on time, fuel efficiency, and crash severity, while being upfront about roundabouts' accessibility gap for blind pedestrians.

MED-015

Aligned

## [This is the key to safer streets](https://www.youtube.com/watch?v=xsSp8gxzfjo)

Streetcraft

A full traffic-calming toolkit walkthrough, plastic mini-roundabouts, curb extensions, chicanes, the speed bump/hump/cushion/table family, and a Cincinnati road-diet case study with dramatic before/after crash data.

MED-016

Aligned

## [What is the "Correct" Speed Limit?](https://www.youtube.com/watch?v=JRbnBc-97Ps)

Not Just Bikes

Makes the physics and data case for 30 km/h (roughly 20 mph) as the safe default urban speed, the same logic behind CS's own Local street speed cap.

MED-017

Aligned

## [South Carolina's Freeway for Bikes](https://www.youtube.com/watch?v=NxGYs8kHxw4)

Road Guy Rob

The Swamp Rabbit Trail's rail-to-trail history and its treatment as genuine transportation infrastructure, plus the Travelers Rest Main Street road diet that reallocated car lanes to parking and bike parking.

MED-018

Aligned

## [Roads don't have to be FAT to be FAST](https://www.youtube.com/watch?v=UV0x2hNRYnU)

Road Guy Rob

Explains the interrupted-flow/platooning physics behind signalized-arterial congestion, then covers Carmel's Keystone Parkway conversion to a limited-access road using compact elevated roundabout interchanges instead of a full diamond interchange.

MED-019

Aligned

## [Let's FIX the HIGH SCHOOL (with 152 ROUNDABOUTS!)](https://www.youtube.com/watch?v=1ZUZA76L09M)

Road Guy Rob

The origin story of Carmel's roundabout program, starting with a contentious school-zone traffic-calming project, and the engineering fix (tightened entries, fatter center island) that made the design work.

MED-020