The second Strategic Highway Research Program (SHRP2) developed data and analysis tools to improve the measurement and management of travel time reliability by transportation practitioners. The SHRP2 Program provided funding to help State Departments of Transportation (DOTs) test the tools and incorporate reliability into their business practices. In total, 18 agencies piloted one or more tools, as shown in the table below. A short case study describes each agency project. Each of the tools are also described below.
Data Collection and Integration Tool
L02 –Guide to Establish Monitoring Programs for Travel-Time Reliability: Guidebook, visualization tools, and methods for integrating data to analyze reliability, including causes and locations of unreliable performance and identification of potential mitigating strategies.
L07 – Reliability by Design: Spreadsheet-based analysis tool to assess how different design improvements affect reliability, delay, safety, and benefit versus cost for the lifecycle.
L08 – Incorporating Travel-Time Reliability into the Highway Capacity Manual: Highway Capacity Manual update to estimate travel-time reliability performance measures on major freeways and urban arterials.
C11 – Tools for Assessing Wider Economic Benefits of Transportation: Spreadsheet-based tools that expand economic benefits analysis of highway projects to contain network-oriented concepts, including reliability.
L05 – Handbook for Incorporating Reliability Performance Measures into Transportation Planning and Programming: Guide to the institutional arrangements and technical steps needed for State DOTs and metropolitan planning organizations to incorporate reliability into their decision-making.