Investigation of Detectors for Border Traffic Counts

There is a need to conduct independent vehicle counts at international border crossings between the United States and Mexico. It is challenging to get an accurate count of the vehicles at the border area since automated vehicle counting systems depend on a reasonably constant speed of traffic to keep moving and achieve desirable accuracy. Researchers conducted a search of available detection systems in College Station and at the Ysleta Port of Entry in El Paso to identify new, promising detectors. Researchers found and tested the Leddar Tech IS16 light-emitting diode laser scanner and the Sensys Networks micro-radar detector. The research team found these two systems suitable wherever vehicles stop and move forward very slowly, or where vehicles seldom stop but go slow. Specifically, the team found the Leddar IS16 sensor very accurate for the border environment, but it would require minor software development and connecting with a hardened computer to store data in real time for review and analysis. This system would also need a software application that would automate data collection and subsequently forward the data to a traffic management center or local Texas A&M Transportation Institute offices. Researchers also recommend the Sensys Networks micro-radar detector. Although it costs more than the Leddar, the Sensys would require minor development to serve as an automated count system.