Wireless Roadside Inspection Phase II

FOREWORD The Federal Motor Carrier Safety Administration (FMCSA) Wireless Roadside Inspection (WRI) Program is demonstrating the feasibility and value of electronically assessing truck and motorcoach driver and vehicle safety at least 25 times more often than is possible using only physical roadside inspections. WRI Pilot Tests were conducted to prototype, test, and demonstrate the feasibility and benefits of electronically collecting safety data messages (SDMs) from in-service commercial vehicles and performing WRIs using three different communication systems. The results of this program have been used in conjunction with the results of complementary independent evaluations to support an overall assessment of the feasibility and benefits of WRI in enhancing motor carrier safety (reduction in crashes) due to increased compliance (change in motor carrier and driver behavior) caused by conducting frequent safety inspections electronically, at highway speeds, without delay or need to divert into a weigh station. This WRI Phase II final report is intended to capture and summarize the key results of interest to stakeholders as they review the benefits and costs of WRI and assess whether and how to support further development and testing and, potentially, deployment. This final report addresses the following topics: • Introduction and Overview. • Description of WRI and this project. NOTICE This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The United States Government assumes no liability for its contents or the use thereof. The contents of this report reflect the views of the contractor, who is responsible for the accuracy of the data presented herein. The contents do not necessarily reflect the official policy of the U.S. The United States Government does not endorse products or manufacturers named herein. Trade or manufacturers' names appear herein solely because they are considered essential to the object of this report. Symbol When You Know Multiply By To Find Symbol LENGTH in inches 25.4 millimeters mm ft feet 0.305 meters m yd yards 0.914 meters m mi miles 1.61 kilometers km AREA in² square inches 645.2 square millimeters mm² ft² square feet 0.093 square meters m² yd² square yards 0.836 square meters m² ac acres 0.405 hectares ha mi² square miles 2.59 square kilometers km² VOLUME 1,000 L shall be shown in m³ fl oz fluid ounces 29.57 milliliters ml gal gallons 3.785 liters L ft³ cubic feet 0.028 cubic meters m³ yd³ cubic yards 0.765 cubic meters m³ …