Task 173, FY 2004, Measuring and Communicating the Effects of Incident Management Improvements, (Cambridge Systematics). This study has developed a summary of best practice for measuring and communicating the effects of incident management programs. The summary has been approved by the panel and published as NCHRP Research Results Digest 289. The appendixes to this digest are available as NCHRP Web Document 64. (NCHRP Staff: B.R. Derr)