Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
41 The Strategic Highway Research Program (SHRP) 2 Project L05 technical reference, Incorporating Reliability Performance Measures into the Transportation Planning and Programming Processes: Technical Reference, provides guidance for trans- portation planning agencies to help them incorporate travel time reliability performance measures and strategies into the transportation planning and programming process. Strategies are discussed more fully in the guide. The technical reference will allow operational improvements to be considered along- side more traditional types of capital improvements and ensure that transportation funds are being used as effectively as possible. The technical reference for incorporating reliability per- formance measures into the planning and programming process provides a how-to for technical staff to select and calculate the appropriate performance measures to support the development of key planning products, including the following: ⢠Long-range transportation plans; ⢠Transportation programs (STIPs and TIPs); ⢠Congestion management process; ⢠Corridor planning; and ⢠Operations planning. The technical reference document is organized as follows: ⢠Chapter 2: Overview of Travel Time Reliability. This chapter summarizes foundational research on reliability, including a practical definition, how to measure reliability, why reli- ability is important, and strategies for improving reliabil- ity. It is based on previous work in the SHRP 2 Reliability Program. ⢠Chapter 3: Description of Tools and Methods for Estimat- ing Reliability. This chapter summarizes the types of tools and methods that may be used to estimate reliabil- ity measures, including sketch planning, model post- processing, simulation or multiresolution, and monitoring and management. ⢠Chapter 4: Tool and Method Selection Process. This chapter provides processes for selecting a reliability analysis tool or method and guidance for setting up the analysis. ⢠Chapter 5: Conducting a Reliability Analysis. This chapter provides systematic guidance in applying reliability analysis methods and tools. ⢠Chapter 6: Benefit-Cost Analysis. This chapter provides guid- ance on incorporating the results of the reliability analysis into a benefit-cost analysis. ⢠Chapter 7: Improving Planning and Programming Capability. This chapter describes a capability maturity model (CMM) approach for incorporating travel time reliability into planning and programming. Selected relevant material from outside sources is in supple- mental appendices. ⢠Appendix A: Additional Resources. This appendix provides annotated descriptions of references and other resources where the user may obtain additional relevant information, including descriptions of other parallel ongoing efforts related to performance measurement, analysis tools and the planning process. ⢠Appendix B: Trends in Reliability. This appendix presents an excerpt from the SHRP 2 L03 report, Analytical Proce- dures for Determining the Impacts of Reliability Mitigation Strategies, which provides an illustrative example of the challenges in interpreting the varied results of a reliability analysis. ⢠Appendix C: IDAS Travel Time Reliability Rates. This appen- dix presents the look-up tables from the ITS Deployment C h a p t e r 5 Summary of Technical Reference
42 ⢠Appendix F: U.S. DOT Guidance on Performance Measures. This appendix presents guidance on how to calculate vari- ous reliability measures from simulation model outputs. ⢠Appendix G: Guidance to Improve Transportation System Management and Operations (TSM&O) Planning and Pro- gramming Capability. This appendix presents guidance on the types of actions needed to improve an agencyâs capabil- ity in the seven critical dimensions of TSM&O planning and programming. Analysis System (IDAS) tool, which are required for some of the analysis methods. ⢠Appendix D: Benefits and Costs of Full Operations and ITS Deployment: Technical Appendix. This appendix presents additional information on completing a multi-scenario post-processing method. ⢠Appendix E: Data Collection Methods. This appendix pre- sents an overview of various types of traffic data and describes technologies and methods for collecting the data.
