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Signalized Intersection Engineering

Image of a woman pushing a button below a sign that reads "Push Button to Turn On Warning Lights"The location of pedestrian signal equipment should be determined in conjunction with the curb ramp and crosswalk layout.

You must evaluate the pedestrian push buttons for accessibility triggers as well as the surrounding area for reach, range and landing requirement, when a project includes any of the following elements:
  • Signalized intersections
  • Rectangular rapid flashing beacons
  • Pedestrian hybrid beacons
Accessible pushbuttons are required when traffic signal work is considered to be an alteration.

Technical Requirements

Technical guidance documents TR16-01(B) and TR16-02(B) have been incorporated into the Signal Design Manual. These documents discussed requirements for pedestrian signal equipment and audible pedestrian signals.

The following document explains maintenance work requirements.

  • MG 144-03 - Traffic Signal Maintenance and Americans with Disabilities Act



Contact the ADA Engineering Team

4040 Fairview Industrial Drive SE, MS 5
Salem, Oregon 97302
Phone: 503-986-3568
Fax: 503-986-3749

Program Contacts

Phone: 503-400-4256

Pam Johnson, PE
Phone: 503-354-7213