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Field Adjustments
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Field Adjustments
Glossary
 

Field Adjustments

Summary
The success of Accessible Pedestrian Signal (APS) installations cannot be assured by even the most careful planning. Field adjustments are almost always required to provide the most benefit for all users.

APS products offer a wide variety of standard and optional features, and the technology is changing rapidly. In addition, conditions vary in the field. Intersection and crosswalk geometry may be unusual, traffic control equipment and associated wiring may be old and unable to be adapted as anticipated, and site conditions, including other infrastructure on the corner, may be challenging.

The goal of this section is to inform installers, and those who evaluate this work, of criteria that are critical to the successful performance of APS.

Contents

Adjustment of installations
Setting and evaluating sound levels
Installation of speakers and microphones
Installation of pushbuttons, vibrating surfaces, signage and tactile arrows
Follow up on installations




 

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