They'll probably get some takers if they call it a sidewalk instead of a trail. Reduce the width and allow pedestrians only. There already are bike lanes on the street.

Sidewalk wrote:
Reduce the width and allow pedestrians only. There already are bike lanes on the street.

Uh, Dear Sidewalk,
Tell you what, you go out on that street(Alpine rd),use those "bike" lanes(actually the lanes you allude to are mostly fog stripes,not designated bike lanes) to recreate(walk) in...Then come back here+report what a grand ol time you had mixing it up w motor vehicles, and I'll consider riding my bicycle out there.
My main point, Many of us that ride bicycles are just as horrified as you are with the concept of pedaling amongst motor vehicles.

Walkers already have pretty much everything when it comes to trails access within San Mateo County. No More Pedestrian Only trails,imho, it's past time to start sharing these traffic free options with pedalers when they arise.