Analytical Procedures for Determining the Impacts of Reliability Mitigation Strategies

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-L03-RR-1: Analytical Procedures for Determining the Impacts of Reliability Mitigation Strategies explores predictive relationships between highway improvements and travel time reliability. For example, how can the effect of an improvement on reliability be predicted; and alternatively, how can reliability be characterized as a function of highway, traffic, and operating conditions? The report presents two models that can be used to estimate or predict travel time reliability. The models have broad applicability to planning, programming, and systems management and operations.

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Errata

In February 2013 TRB issued the following errata for SHRP 2 Report S2-L03-RR-1: On page 80, the reference to Table 2.9 should be to Table 2.5. On page 214, the reference to Table B.30 should be to Table B.38. These references have been corrected in the online version of the report.