In Albuquerque, New Mexico, work zone surveillance and response at the "Big I" Interchange reduced average clearance time by 44 percent.
Made Public Date


New Mexico
United States

Intelligent Transportation Systems in Work Zones: Leveraging the Internet and Wireless Communications

Summary Information

This project evaluated work zone incident management systems designed to improve safety and incident response times during reconstruction at the "Big I" interchange in Albuquerque, New Mexico. A construction traffic management center (CTMC) was developed to monitor work zone traffic conditions, assess incidents, and dispatch police, wreckers, and on-site courtesy patrols.

Work zone surveillance was achieved through closed circuit television cameras (CCTV), broadband wireless communications, and directional antennas. Motorists approaching the interchange of I-25 and I-40 were made aware of traffic conditions (lanes affected) via information displayed on dynamic message signs (DMS), and through strategic deployment of portable changeable message signs (CMS). In addition, pre-trip traffic information was updated every three minutes on the "BIG I" Internet web-site.


After approximately one year of operations the average clearance time on the "BIG I" was 20 minutes faster than the historical average clearance time of 45 minutes.