Originally Posted by Dchiefransom
One of your points is a perfect example of non-cyclists setting up bike lanes. They end before intersections here in California, but apparently someone has a lot of white paint, because they paint them waaaaay to close to the intersection.
FYI: there's a set of BLs on a newly constructed multi-lane road in a nearby city that, at the approaches to the intersections, are marked much more like shoulders than like travel lanes. For example, all the travel lanes have stop lines at those intersections, but none of the BLs do.
Richard C. Moeur, P.E., once posted in another list:
There's no system of markings or signing that will ever be able to convey proper lane positioning for bicyclists in all (or even many) circumstances, given the variety of situations that occur on roadways.
To which I had replied:
Quite true. For example, destination positioning must be accommodated at every potential Turning Point (TP). A TP can be an intersection, driveway or other point along the road where an operator might desire to make turn (even a U-turn) and potentially cross paths with other traffic.
Markings and/or signage in the approach area of a potential TP which indicate that there is a preferable/allowable lateral position in the portion of the traveled way intended for the current direction of travel can be correct for no more than half of the possible destination positions (when the operator has two possible destinations at the TP) and may be correct for only a third (when there are three possible destinations).