@BOOK{NAP14167, author = "Transportation Research Board and National Academies of Sciences, Engineering, and Medicine", title = "Cost-Effective Performance Measures for Travel Time Delay, Variation, and Reliability", doi = "10.17226/14167", abstract = "TRB's National Cooperative Highway Research Program (NCHRP) Report 618: Cost-Effective Performance Measures for Travel Time Delay, Variation, and Reliability explores a framework and methods to predict, measure, and report travel time, delay, and reliability from a customer-oriented perspective.", url = "https://nap.nationalacademies.org/catalog/14167/cost-effective-performance-measures-for-travel-time-delay-variation-and-reliability", year = 2008, publisher = "The National Academies Press", address = "Washington, DC" }