Road Safety Professional (RSP) Level 1 Practice Exam

Where are high-quality CMFs published along with many others?

CMF Clearinghouse Highway Safety Manual National Transportation Safety Board Federal Highway Administration

Correct Answer:

CMF Clearinghouse

Explanation:

Crash Modification Factors quantify how a safety countermeasure is expected to change crash frequency, and the CMF Clearinghouse is the public database that collects these factors from many studies, with notes on context, methods, and quality. This combination makes it the best place to find high-quality CMFs published alongside many others, so you can compare options across different situations. The Highway Safety Manual uses CMFs as part of its guidance but isn’t the central repository of CMFs. The National Transportation Safety Board focuses on accident investigations and safety findings, not a CMF database. The Federal Highway Administration provides guidance and oversight but does not serve as the primary CMF collection.

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