The guide is a basic reference to assist State Highway Safety Offices (SHSOs) in selecting effective, evidencebased countermeasures for traffic safety problem areas.
The guide:
describes major strategies and countermeasures that are relevant to SHSOs;
summarizes strategy/countermeasure use, effectiveness, costs, and implementation time; and
provides references to the most important research summaries and individual studies.
http://www.nhtsa.gov/staticfiles/nti/pdf/811727.pdf