Virtual Weigh Stations (VWS)

Project Area(s): 
Goods Movement

In the last five years, commercial vehicle travel in California has increased by more than 50 percent. It is expected to grow by almost 80 percent by 2020. As a result, existing commercial vehicle enforcement facilities are struggling to keep up with this growth. In response to this problem, Caltrans investigated the use of detection and communication technology with virtual weigh stations to cost-effectively improve enforcement of commercial vehicle regulations. Research for this project included extensive data analysis, literature reviews, and expert and stakeholder interviews. Key outcomes included: 1) an inventory of baseline statistics on the current commercial vehicle compliance and enforcement processes in California; 2) estimates of future demand placed on compliance processes and likely resources to meet this demand; 3) identification of significant commercial vehicle compliance and enforcement related problems and locations in California (e.g., pavement and structure damage, crashes, air pollution, and security); and 4) assessment of current and emerging technologies and applications including performance, costs, and institutional barriers. Based on these findings, researchers recommended alternatives with the most likely return on investment.

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