Posted by concerned cyclist :
SFMTA needs to spend some of their PR funds on educating the public on the proper ways to merge right turning traffic with bike lanes at intersections. They also need to re-stripe the bike lanes and post signs so that motorists and cyclists know that right turning cars and cycles are supposed to merge as they approach an intersection. Cyclists should either queue up behind right-turning cars, or pass them on the left, (NEVER ON THE RIGHT) when it is safe to do so. There are plenty of signs indicating bus and right turn only lanes, but no signs indicating the same for bike lanes. Most people are probably unaware of Vehicle code section 21717.
Vehicle code section 21717 obligates cars to merge into bike lanes when making right turns in the presence of a bike lane. Unfortunately, most drivers do not know this, and try to avoid the bike lanes entirely, which results in them crossing the bike lanes to makes their turns at the last possible moment. Often their right turn signal is either missed or ignored by the cyclists who is passing on the right on their car without regard to their intention to turn right into the intersection, crossing the bike lane.
Drivers violate VC 21717 by right-hooking the bike lane instead of mixing and merging. They mistakenly believe they are forbidden to merge into the bike lane (despite the dashed lane marking near intersections). Uninformed cyclists exacerbate the problem by squeezing between the car and the curb even when the car is doing the right thing. Some cyclists verbally abuse drivers in the bike lane near intersections when drivers are merging as required by law.
The Bicycle Coalition, in its taxi-driver training class, tells the cabbies that “If a cyclist can fit between your cab and the curb, you’re not close enough.” Everyone needs to get this message.