For other posts on the H Street Bikeway project, see category: H Street Bikeway. For the city webpage on the project, see H Street Bikeway to Sacramento Valley Station.

The H Street Bikeway design has 6 driveways crossing it, 2 on 5th Street to 6th Street, 3 on 6th Street to 7th Street, 1 on 7th Street to 8th Street, and none on 8th Street to 10th Street. Though none of these driveways are heavily used, all are potential conflict points for the bikeway. The 30% design diagrams do not detail how these driveways crossing the separated bikeway will be handled. It is imperative that motor vehicles using the bikeway are moving slowly enough that drivers will see and yield to bicyclists, and bicyclists have time to avoid collisions with drivers who do not yield.

San Francisco has a two-way separated bikeway (cycletrack) on Battery Street in the financial district. Each driveway has speed control devices to ensure that drivers are moving slowly entering and exiting the driveways. The photo below shows one installation, between Pine Street and Bush Street. As a frequent user of this bikeway, I can attest that they are a critical safety feature.

A note about speed bumps. Speed bumps are illegal across roadways in the US. They are most often seen in parking lots, where they are still legal. This use across driveways, and not streets, is legal. The traffic calming devices that are legal across roadways are speed humps, speed cushions, and speed tables.