Commonway
Version V. 2026.08.31

Bike Box

ELM-BKB-42
Recommended Element

Bike Box

A designated waiting area marked at the head of a signalized intersection, positioned ahead of the vehicle stop line, allowing cyclists to position themselves in front of queued vehicles during a red signal for improved visibility and to enable a safer left turn or through movement.

Working assessment: this pattern’s status reflects a preliminary Commonway System judgment call, pending final review.

#Why this pattern exists

At a signalized intersection, a cyclist stopped alongside or behind queued vehicles has reduced visibility to drivers and a harder time making a turning movement across traffic once the signal changes; a bike box gives cyclists a visible head-start position ahead of the queue, addressing this specific intersection conflict. This pattern exists to document where and how that positioning treatment is applied.

#Key considerations

  • Requires a "no turn on red" restriction for vehicles at that approach, since the box’s function depends on vehicles not entering the space during the cyclist’s queuing period
  • Most effective when paired with a bike lane leading into the box, so cyclists have a legible, protected path to reach it
  • Signal timing and driver awareness both affect real-world compliance; signage and clear markings help reinforce expected behavior

Green Pavement/Conflict Marking (ELM-GPM-38) (often used to highlight the box itself); Protected Bike Lane/Cycle Track (ELM-PBL-37), Conventional Bike Lane (ELM-CBL-34) (the facilities that typically lead into a bike box)

Unsourced claim

Formal citations for this pattern have not yet been compiled from primary sources.

Suggest changes to this page (opens in new tab) Last updated August 31, 2026