By Nuala Sawyer : sfexaminer – excerpt
Raised bike lanes are a popular tactic used by other cities to separate cars and bikes as they travel along the same city street. The bike lanes should discourage people from driving in them, but still allow emergency vehicles access. Cyclists should be able to enter and exit the raised bike lane safely at any point.
Taking into account other cities’ designs, the SFMTA installed four options in one short stretch: a wide mountable curb, a mountable curb, a mountable curb near sidewalk level, and a vertical curb…