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APS home go to front of Accessible Pedestrian Signals
Go to Front page Background section Travel by Blind
Rules & Regulations
Technologies and Features section Types
Walk Indications
Other Features
Choosing and Installing section Where to Install
Designing Installations
Intersection geometry considerations
New Construction or Reconstruction
Retrofitting an Intersection with an APS
Installation Specifications
Field Adjustments
State of Practices section Case Studies
International Practice
Devices section Manufacturers
Selection Tool
Product Matrix
Downloads section Full Guide
Rating Scales
Field Adjustments

Designing Installations

Accessible Pedestrian Signal (APS) installations require engineering, including detailed drawings and specifications. Complex intersections require complex decisions and the use of engineering judgment.

Decisions about type of device, device features, and where and how to install the APS may be affected by a number of factors that must be considered in designing the installation.


Installation decisions
Audible beaconing
Signal phasing considerations
Intersection geometry considerations


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