Most bike corrals replace one car space with about five bike racks, each parking two bikes, and are requested by merchants who want to efficiently re-purpose street space to serve more customers. As the corrals proliferate, they’ve started to vary a bit in configuration to serve more purposes.
One of the newest corrals, installed in front of the Mission Cliffs indoor climbing gym at Harrison and 19th Streets, has replaced six car parking spaces with parking for 54 bikes. It’s “the largest bike corral in a U.S. urban environment,” according to an SFMTA report [PDF]. This corral uses a novel type of bike rack, purchased by Mission Cliffs, that fits more bikes into the space by vertically staggering them.
Other bike corrals have been placed strategically to open up visibility at street corners, or “daylight” them, and to help keep Muni trains moving. At Carl and Cole Streets, drivers often used to park in a red curb zone intended to provide turning room for N-Judah trains entering the Sunset Tunnel, thereby blocking Muni’s busiest line. The curb space has been filled with five bike racks placed parallel to the curb, making it impossible to leave a car there (well, without running over the racks) while still leaving space for passing trains.
Today’s total of 55 corrals is double the 27 we reported on in June 2012, which had converted 30 car parking spots into 336 bike parking spots. Of the 55 now on the ground, 21 were installed in 2013, yielding 117 bike racks without infringing upon sidewalk space. At press time, the SFMTA didn’t have a count for the number of car spaces replaced with bike corrals.
As of March 24, the SFMTA report said the agency plans “upcoming installation” of six more bike corrals, with 30 bike racks and providing 98 parking spots, and has another 50 locations under review. Businesses can find info on requesting bike corrals on the SFMTA website.