Road Safety Audit REPORT

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Illinois Department of Transportation SUMMARY of Road Safety Audit REPORT Interstate 55 Work Zone: From US 6 to Weber Road Project Data Date: July 30-31, 2007 RSA Team and Participants: Dave Piper – Illinois Department of Transportation (IDOT) Bureau of Safety Engineering (BSE) Dennis Whitehead – IDOT BSE Brian Copple – Illinois State Police (ISP) Heidi Liske – Federal Highway Administration (FHWA) Background: The RSA was conducted on Interstate 55, between portions of US 6 and Weber Road. The focus of the RSA was to identify opportunities for safety improvements during construction activities and in work zone areas. Throughout the study, the RSA Team examined several risk factors that impact traffic safety on Interstate 55, including exposure, probability, and consequence. The RSA was conducted over a two-day period with a team that was comprised of law enforcement, transportation, and other local officials. Because of the changeable nature of a work zone, the RSA decision making process was accelerated to include discussion and acceptance of certain items at the close out meeting. RSA Process: The RSA was performed by conducting field studies along construction sites and work zones on Interstate 55. Specifically, the areas of study were located on Interstate 55, between US 6 and Weber Road. In addition, the RSA Team also examined crash history reports and statistics from several areas along the Interstate. This ...

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