Lesson
Part of: Design Principles of Cycling [Draft Version]
Advanced Stop Line (ASL) for Cyclists
BOOKMARK
Bike boxes
An advanced stop line (ASL), also called an advanced stop box or a bike box, is a set of road markings at signalized junctions that allows cycles a head-start when the traffic signal changes from red to green.
Bike boxes:
- Should be implemented at signalized intersections as a safe space for cyclists
- Make cyclists visible in front of motor vehicle queues during a red light
- Allow cyclists a head-start when the traffic signal changes from red to green
- Should be designed behind pedestrian crossings to minimize the probability of bicycle-pedestrian interaction
Motor vehicles should have a recessed stop line. This allows cyclists to be more visible and “bunch” at busy intersections. The stop line should generally be recessed by 5 meters, providing a de facto “bike box” as well.