How effective are roadway safety improvements in reducing crashes?
Roadway safety improvement projects continue to show benefits. To illustrate, South Carolina installed nearly 400 miles of median barrier on its Interstate system in an effort to reduce the potential for median crossover crashes. Using multiple sources of funds, including Federal-aid, State and local, and private sector funds, these improvements were implemented over a 2-year period. The cable median barrier that was installed reduced the number of fatal Interstate median crossover crashes by 67 percent. Overall, South Carolina’s Interstate Safety Improvement Program resulted in a savings of approximately $375 million over 2 years and a benefit-cost ratio of nearly 20 to 1.
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- How effective are roadway safety improvements in reducing crashes?
