A Comparison of Crash Patterns in Heavy Trucks with and Without Collision Warning System Technology
Date Published: 2004-10-26
Paper Number:2004-01-2651
DOI: 10.4271/2004-01-2651
Citation:
Chen, G., Jenkins, E., and Husting, E., "A Comparison of Crash Patterns in Heavy Trucks with and Without Collision Warning System Technology," SAE Technical Paper 2004-01-2651, 2004, doi:10.4271/2004-01-2651.
Author(s):
Guang X Chen - National Institute for Occupational Safety and Health
E. Lynn Jenkins - National Institute for Occupational Safety and Health
E. Lee Husting - National Institute for Occupational Safety and Health
Abstract:
Collision warning systems (CWS) are a relatively new technology to reduce or mitigate motor vehicle rear-end and side impact collisions. This study compared available police-reported crash experiences of 6,143 CWS-equipped heavy trucks with the experiences of 383,058 heavy trucks without CWS. Data were from the Motor Carrier Management Information System (2000-2002). Results suggest that CWS-equipped trucks had a significantly lower proportion of crashes involving other moving vehicles and a significantly lower proportion of multiple vehicle crashes compared to trucks without CWS, (40% vs. 49%, p<0.0001; 62% vs. 67%, p<0.004 respectively). These changes are the first crash-data based evidence that supports the design effect of CWS. However, more studies are needed to determine the specific impacts of CWS on heavy truck crashes.
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