TRB Webinar: Not Your Average Analysis – Introducing Travel Time Reliability in the HCM | Blurbs New | Blurbs | Electronic Sessions
Traffic operations and management practitioners were invited to a TRB webinar on Thursday, August 22, 2019, from 1:00-2:30 PM. This webinar discussed the proposed chapters for incorporating travel time reliability into the Highway Capacity Manual (HCM), Sixth Edition: A Guide for Multimodal Mobility Analysis. HCM is commonly used by transportation agencies to evaluate and forecast operations of roadway facilities. An updated version will be released next year.
Travel time reliability aims to quantify the variation of travel time and is defined using the entire range of travel times for a given trip, for a selected time period (for example, the peak period on weekday afternoons), and over a selected horizon (for example, a year). Measuring travel time reliability requires that a sufficient history of travel times be present to track travel time performance. Presenters identified travel time distribution for a given trip. They also described how to apply travel time reliability methods to the analysis of freeways, urban streets, and corridors.
This webinar was organized by the TRB Standing Committee on Highway Capacity and Quality of Service. It is the third in a series of webinars about the HCM. The first two were conducted on June 10, 2019 and July 29, 2019.
Rick Dowling, Kittelson & Associates
Tyrone Scorsone, Kittelson & Associates
Moderated by: Bastian Schroeder, Kittelson & Associates