Commonway
Version V. 2026.09.03

Restricted Crossing U-Turn (RCUT) retrofit

RFT-INT-03 Intersection

Restricted Crossing U-Turn (RCUT) retrofit

Reroutes both left-turn and through movements from the minor road, requiring drivers to turn right onto the major road first, then complete a U-turn at a designated median crossover. Also known as a J-turn or superstreet.

#Overview

RCUT goes a step further than a standard median U-turn retrofit: it removes the minor road's direct through movement across the major road entirely, not just its left turn. A driver crossing the major road from the minor approach turns right, merges, then makes a U-turn to continue in the direction they originally needed. This lets the main intersection focus entirely on major-road through movement, since it no longer needs to serve conflicting minor-road crossing traffic at all.

#Where this leads: Target patterns

Restricted Crossing U-Turn (RCUT) (INT-RCU-13)

#Applicability and thresholds

Used primarily on high-speed, four-lane-or-larger divided highways, both signalized and unsignalized versions exist, with median width sized to the design vehicle's turning requirements.1 Particularly beneficial where large trucks are common, since the design gives them a single direction of traffic to focus on rather than requiring a gap-judgment across the full width of opposing traffic.

#Evidence and effectiveness

FHWA reports RCUT intersections reduce fatal and injury crashes substantially compared to the conventional intersections they replace, primarily by eliminating the right-angle and left-turn crash types associated with direct crossing and turning movements at a conventional design.3

#Getting it built

Cannot be piloted informally. Wisconsin DOT notes RCUT designs are easily retrofitted, often without purchasing additional right-of-way, since the crossover reuses existing median width, but the crossover construction itself is still real, permanent infrastructure.2 This strategy effectively starts at Permanent on the construction spectrum. See Construction Methodology & The Build Spectrum.

An Intersection Control Evaluation is standard practice for this geometry. See Decision & Evaluation Processes.

#Who can move this

Typically a state DOT capital project, since RCUT is used almost exclusively on state-maintained highways rather than local streets. See Legal & Planning Mechanisms.

Median U-Turn (MUT) retrofit (RFT-INT-02) (the related, less restrictive geometry that still allows a direct minor-road through movement), Displaced Left-Turn (DLT) retrofit (RFT-INT-04) (an alternative approach to the same unprotected-left-turn and through-crossing problem)

#References

  1. Legal / regulatory Texas Department of Transportation, "14.6 Restricted Crossing U-Turn Intersection (RCUT)."
  2. Precedent-based Wisconsin Department of Transportation, "Restricted Crossing U-Turn (RCUT) Intersections."
  3. Evidence-based Kentucky Transportation Cabinet, "Reduced Conflict U-Turn," SAFERoads Solutions, before-after crash data.

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