This is to kind of go along with the right hook thread.
One of the roadways I commute home on is Singing Hills Blvd. It is through a major commercial area, is 4 lanes, 2 lanes in each direction, is light controlled, 35 mph & has both left & right turn only lanes.
Last year when riding on Singing Hills I always ride in the right travel lane. Several times last year a lot of JAM's would speed up, pass me in the left travel lane, cut me off to merge across my lane & into the right turn only lane. I carry a small stop watch around my neck when I ride & I started timing how long it actually took to see if it was faster for the JAM's to do this or is it faster for a motorist to wait behind me until they can properly & legally merge into the right turn. It turns out it is faster for a motorist to wait then it is for a JAM to pass me, cut me off, then merge. I do this by timing the JAM, then if a motorist behind waits, then merges to turn I use the split feature on the stop watch. The differance is usually 5 to 10 seconds faster for the motorists to wait.