Chapter 6: Designing APS Installations
Chapter Summary
Accessible Pedestrian Signal installations require engineering, including detailed drawings and specifications. Complex intersections require complex decisions and the use of engineering judgment. A number of factors must be considered in designing the installation. This chapter contains guidance on how to design an APS installation that works well for the user and the environment.
Chapter contents
- Principles
- Optimal APS Location
- Signal Phasing Considerations
- Intersection Geometry Considerations
- APS Design in New Construction
- APS Design at an Existing Intersection
- Needs Assessment
- Pole Location
- Specifications
- Mounting and Wiring Issues
- APS Microphones and Speakers
- Summary of Recommended Features and Installation Practice