walkinginfo.org Logo Go to contents of page
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
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

Retrofitting an Intersection with an APS

When installing Accessible Pedestrian Signals (APS) at existing intersections, constraints of the intersection and signalization may affect the ability to meet new construction guidelines. New construction guidelines should be followed to the maximum extent feasible. The following sections provide guidance to assist the engineer/designer in understanding the effect of varying locations and different actuation on the usability of the information provided by APS.


Addition of APS to an existing intersection
APS at pushbutton actuated intersections
APS where pedestrian timing is not pushbutton actuated
Pole location


  << previous page  |  next page >>
spacer image
This site was developed under the sponsorship of the National Cooperative Highway Research Program.