This may be of interest to traffic safety types. I thought the discussion on reliability of CRFs was enlightening.
CRASH REDUCTION FACTORS FOR TRAFFIC ENGINEERING AND INTELLIGENT TRANSPORTATION SYSTEM (ITS) IMPROVEMENTS: STATE-OF-KNOWLEDGE REPORT
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TRB’s National Cooperative Highway Research Program (NCHRP) Research Results Digest 299—Crash Reduction Factors for Traffic Engineering and Intelligent Transportation System (ITS) Improvements: State-of-Knowledge Report summarizes the current status of crash reduction factors for a variety of treatments and provides a summary of the “best available” crash reduction factors. The report also reviews the relationship between NCHRP Project 17-25, “Crash Reduction Factors for Traffic Engineering and ITS Improvements,” and other ongoing research studies that are either documenting or developing additional crash reduction factors.
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"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail."
Wm. Phelps Eno, ca. 1928
CRASH REDUCTION FACTORS FOR TRAFFIC ENGINEERING AND INTELLIGENT TRANSPORTATION SYSTEM (ITS) IMPROVEMENTS: STATE-OF-KNOWLEDGE REPORT
->
TRB’s National Cooperative Highway Research Program (NCHRP) Research Results Digest 299—Crash Reduction Factors for Traffic Engineering and Intelligent Transportation System (ITS) Improvements: State-of-Knowledge Report summarizes the current status of crash reduction factors for a variety of treatments and provides a summary of the “best available” crash reduction factors. The report also reviews the relationship between NCHRP Project 17-25, “Crash Reduction Factors for Traffic Engineering and ITS Improvements,” and other ongoing research studies that are either documenting or developing additional crash reduction factors.
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"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail."
Wm. Phelps Eno, ca. 1928
