Cyclists
ASLs for cyclists are generally used in conjunction with some form of cycle lane for filtering cycle traffic. Traffic regulations in some countries (e.g. UK and Ireland) may require a cycle lane to give cyclists a legal way of bypassing the first stop line. This arrangement theoretically allows cyclists to play to their strengths by regularising the practice of filtering to the top of queuing traffic during the red phase at traffic lights. Cyclists turning to the offside (i.e. right in the UK and Ireland, left in USA etc.) are able to take up a proper turning position. Straight-on cyclists can adopt and maintain a prominent position for transiting the junction safely within the main traffic stream. An ASL will also help reduce the exposure of such cyclists at junctions with nearside (i.e. left in the UK and Ireland, right in USA etc.) filter lights by providing a place for cyclists to wait while traffic passes on the inside. A similar consideration arises where a free turn to the nearside is permitted (called right turn on red in the US).
At a red light, cyclists are more visible to motorists by being in front of them. At a green light, the green bike lane through the intersection reminds motorists and cyclists to watch for each other.
Read more about this topic: Advanced Stop Line