Case Study
Oregon Green Light Weigh Stations
Oregon Green Light Weigh Stations Project Description: The Oregon Green Light Pilot Project was initiated in 1995 to add automated preclearance to existing weigh station facilities. The projectwas successful in improving enforcement e ectiveness and has become a milestone in the development of ITS technology for commercial vehicle operations (CVO) in the United States. IRD designed, supplied, and installed each of the 22 weigh stations in partnership with the Oregon DOT. A typical Oregon Green Light enforcement facility includes a preclearance/sorting system on the mainline employing weigh-in- motion (WIM) scales and pole-mounted automatic vehicle identi cation (AVI) readers that interface with the state's computer databases. The preclearance system is capable of checking the compliance of