Designing Transportation Facilities
McCormick Taylor designers consider a wide range of requirements when designing pedestrian facilities that comply with ADA requirements and effectively protect users; however, there are a few key elements our engineers commonly incorporate.
Sidewalks must span at least five feet in width without obstruction to provide adequate space for navigating and passing. Detectable warning surfaces (DWS) are features built into sidewalks or ramps to alert visually impaired individuals to the presence of a hazard or before an approaching street crossing. ADA-compliant designs also reduce steep slopes and provide level landing areas, something that can be difficult when working in close, confined spaces. Ramps at intersections are angled perpendicular to the roadway, when possible, to provide a straight line crossing to the other side of the street which assists pedestrians who are without sight or have limited vision. Similarly, accessible pedestrian systems (APS) use push buttons with audible features to provide WALK and DON’T WALK intervals at signalized intersections.
Check out an example of this work in practice for a project that improves safety measures for kids walking to school.