Validation of Urban Freeway Models

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-L33-RW-1: Validation of Urban Freeway Models documents and presents the results of a project to investigate, validate, and enhance the travel time reliability models developed in the SHRP 2 L03 project titled Analytical Procedures for Determining the Impacts of Reliability Mitigation Strategies.

This report explores the use of new datasets and statistical performance measures to validate these models. As part of this validation, this work examined the structure, inputs, and outputs of all of the L33 project models and explored the applicability and validity of all L03 project models. This report  proposes new application guidelines and enhancements to the L03 models.