Product Information

New AAPS Installation in Downtown Boise at Ada County Courthouse

Campbell Company’s Advanced Accessible Pedestrian System (AAPS) is part of a new traffic signal and crosswalk installation at a busy street crossing at the Ada County Courthouse in Boise, Idaho.

The crosswalk was installed directly in front of the Ada County Courthouse where officials estimated that 80 people per hour were illegally crossing Front Street, a major 5-lane traffic corridor in the downtown area.

This is the forth AAPS installation Campbell Company has completed for the Ada County Highway District since last September in downtown Boise.

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Related News stories:

Traffic signal makes for safer crossing in front of Ada County Courthouse | KTVB.COM Boise.

New traffic signal in front of the Ada County Courthouse opens today –


AAPS Approved for Minnesota Department of Transportaion

Campbell’s Advanced Accessible Pedestrian System (AAPS) has been added to the Minnesota Department of Transportation’s Approved Products List.

The department’s web site is to assist contractors in selecting products that are required to be pre-approved and for the use by the Minnesota DOT’s project personnel verifying the acceptability of products delivered to the project site.


Advanced Accessible Pedestrian System (AAPS) Overview

UI professor makes crosswalks safer for visually impaired


Crosswalk Insights for the Vision Impaired

Crosswalk Insights for the Vision Impaired

Monday, May 16

Written by Steven Nelson

MOSCOW, Idaho – Most people don’t think much about crossing the street. Even at a busy intersection, the “walk” or flashing “don’t walk” signs tell them when it is safe to cross. However, for the vision impaired, it can be challenging as they can’t see the sign or the traffic, or struggle with noise issues created by heavy traffic.

Research done at the University of Idaho now is helping the vision impaired safely cross intersections.

“The system was in development for six years,” said Richard Wall, professor of computer science and electrical engineering, who led the faculty and student team.

The Advanced Accessible Pedestrian System currently is in commercial production at Campbell Company of Boise and being installed in cities throughout the United States. Wall led the research and development of the AAPS.

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Campbell Company “Freedom Button”

The “Freedom Button” is a new product being developed by Campbell Company.

AAPS – The Latest in Advanced Access Pedestrian Stations

AAPS represents the latest advance in pedestrian signal push button technology.  Designed to better assist the visually impaired at pedestrian stations with audio, visual and tactile information, the AAPS is different from conventional pedestrian stations in that the system can be completely managed via a laptop or Internet connection.

Continuous communication is exchanged between the Advanced Pedestrian ControllerAAPS (APC) in the traffic controller cabinet and each individual Advanced Pedestrian Button (APB) at the rate of four times a second.

Access via direct Ethernet or remote Internet connection allows traffic agency technicians to view AAPS system operations and control audio and visual components with capability to download files directly to individual pedestrian stations, or to an entire network.

AAPS can be easily retrofitted in existing intersection controls using the preexisting pedestrian button conductors. Manufacturing by Campbell Company is done the U.S. and the system is configured at the factory for a true plug and play installation.