|cycleway = bike_box|
|For securing cyclists in front of traffic signal|
|Used on these elements|
|Tools for this tag|
The tag cycleway=asl has been significantly more often used compared to this one. This symbolizes a bike box, a space in front of the stop line at crossing for cyclists. You could indicate its direction (along the way it is on or the opposite direction) with "direction=forward" or "direction=backward".