What is the minimum width of a dropped curb leading to a pedestrian crosswalk?

The minimum width of a dropped curb leading to a pedestrian crosswalk is 900 mm. This specification is designed to ensure accessibility for all pedestrians, including those using wheelchairs, strollers, or mobility aids. A width of 900 mm provides enough space for individuals to comfortably navigate the transition from the sidewalk to the road without obstruction.

This width also accounts for safety and usability, as a narrower curb would increase the risk of accidents or difficulties for those who may require more space to maneuver. Compliance with local building codes and accessibility regulations, such as those outlined in the Americans with Disabilities Act (ADA), typically emphasizes the importance of providing adequate width for safe and effective pedestrian access in urban design. Thus, 900 mm is established as the standard to facilitate the smooth movement of pedestrians at crosswalks.