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FHWA Home / Safety / Geometric Design / Publications / Mitigation Strategies For Design Exceptions

4. Evaluate Mitigation Measures

 

For alternatives that incorporate one or more design elements that do not meet criteria, the designer will have an understanding of the potential adverse impacts to safety and operations.

Equipped with this understanding, measures should be evaluated that are targeted at mitigating those impacts. Mitigation measures may include providing advance notice to the driver of the condition, enhancing the design of another geometric element to compensate for a potentially adverse action, implementing features designed to lessen the severity of an incident or action, or some combination of these. Chapter 4 provides information on mitigation techniques for the 13 controlling criteria. The goal, as discussed in Chapter 1, is to implement mitigation measures that will maximize the probability of a nominally unsafe design operating at a high level of substantive safety and operational efficiency.

 

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Page last modified on April 1, 2019
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