Case Studies

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.

State	L02 – Guide to Establish Monitoring Programs for Travel-Time Reliability	L07 – Reliability by Design	L08 – Incorporating Travel-Time Reliability into the Highway Capacity Manual	C11 – Tools for Assessing Wider Economic Benefits of Transportation	L05 – Handbook for Incorporating Reliability Performance Measures into Transportation Planning and Programming
Arizona DOT	Yes	Yes	No	No	No
Arkansas DOT	No	Yes	Yes	No	No
Colorado DOT	Yes	No	No	No	Yes
Florida DOT	No	Yes	Yes	Yes	Yes
Iowa DOT	Yes	Yes	Yes	Yes	No
Kentucky Transportation Cabinet	Yes	Yes	Yes	Yes	Yes
Massachusetts DOT	Yes	No	No	No	Yes
Maryland DOT	Yes	Yes	Yes	Yes	No
Minnesota DOT	No	Yes	Yes	Yes	No
North Carolina DOT	Yes	Yes	Yes	No	Yes
Oregon DOT	No	No	No	Yes	No
Tennessee DOT	Yes	No	Yes	Yes	Yes
Texas DOT – El Paso	Yes	No	No	No	No
Texas DOT – Houston	Yes	No	No	Yes	Yes
Utah DOT	Yes	No	Yes	No	Yes
Washington DOT	Yes	No	Yes	No	No
Wisconsin DOT	Yes	Yes	Yes	Yes	Yes
West Virginia DOT	Yes	Yes	No	No	Yes

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.

Analysis Tools

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.

Decision-Making Tool

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.