Originally Posted by
mr_bill
This one in in fact is 6 feet wide, with a three foot buffer (that makes NINE feet), plus no gutter pan, but there is a granite curb.
-mr. bill
That's still a sub-standard bike lane. The door of a car opening is going to take up all of the buffer and a person exiting the car on the passenger side is going to step into the bike lane. It doesn't matter if the curb is granite or concrete it is still a curb and can't be ridden over. A cyclist riding in that "lane" is trapped between the car, the door of the car, the person exiting the car and the curb...emphasis on "trapped". None of those is desirable alone and certainly wouldn't be desirable in any combination. As Solomon said in his article, you are trading a fairly rare accident scenario (overtaking collisions) for accident scenarios that are much more common.