No need to apologize, John.

I wonder if you would acknowledge, however, that such bike lanes discourage proper motorist and cycling behavior.

As one example, would you not agree that Del Mar Heights Rd qualifies as a "prime arterial" (3 lanes in each direction, plus turn lanes, at least east and west of El Camino Real)? And based on the criteria that you provided, I think the bike lane there qualifies as "properly engineered". Yet I've seen a westbound experienced (ex-racer even) cyclist reluctant to leave the "safety" of the bike lane early in order to prepare for a left turn onto El Camino Real, and instead continued until he was almost to the intersection, and waited until there was a gap the width of the entire road, so he could take the straight shot from the bike lane across to the left turn lane. Do you agree that bike lanes encourage this type of incorrect left-turn behavior, and actually discourage the proper type of negotiation/merge that should start much earlier?

Can you think of any benefits to cyclists of bike lanes other than the two you noted:
1) discourages parking in the shoulder (how is that a benefit to cyclists - ride to the left of the parked cars, out of the door zone... what's the problem?)
2) tends to cause right lane motorists to give us more space (really? I experience the opposite - explained in the opening post - so we'll have to agree to disagree on that one)

And do you really believe these frankly trivial benefits outweigh all of the serious problems with bike lanes that I noted in the opening post?

Serge