Dedicated bike lanes need to have sufficient width. Project experience has shown the following to be good guideline.: A dedicated bike lane along a roadway must be physically marked or separated from vehicular traffic. Sidewalks are acceptable if they mee

Dedicated bike lanes need to have sufficient width. Project experience has shown the following to be good guideline.: A dedicated bike lane along a roadway must be physically marked or separated from vehicular traffic. Sidewalks are acceptable if they meet the width requirements for a shared bicycle pedestrian lane. Sample width requirements established by AASHTO (American Association of State Highway & Transportation Officials) are:

• Shared bicycle pedestrian lane (assumes 2‐way traffic): 8–10 feet depending on level of expected pedestrian traffic
• One-way restricted bicycle lane (no curb and gutter): 4 feet
• One-way restricted bicycle lane (with curb and gutter): 5 feet