HCM6 Overview

Training > HCM6 Overview 

HCM6 Overview

The Transportation Research Board (TRB) has published the Highway Capacity Manual 6th Edition (HCM6).  This ninety-minute video provides an overview of the changes as compared with the HCM 2010, including many methodological details.  The information is provided to learn what to expect from the updated HCM6 procedures and their implementation in the Highway Capacity Software (HCS7).  You can view the video here: https://mctrans.ce.ufl.edu/videos/HCM6Overview.mp4

Overview of the HCM 2010 and HCM6 Changes
Basic Freeway Segments and Merge & Diverge Segments
(Speed-Flow Curves, Managed Lanes, Weather, Incidents, Calibration, Trucks)
Freeway Weaving Segments and Freeway Facilities
(Travel Time Reliability, ATDM, Managed Lanes, Weather, Incidents, Trucks)
Multilane Highways and Two-Lane Highways
Unsignalized Intersections and Signalized Intersections
Including Two-Way Stop Control, All-Way Stop Control, Roundabouts
(Heavy Vehicle and Grade, Unsignalized Movements, Roundabout Capacity)
Urban Street Segments, Facilities and Alternative Intersections & Interchanges
(Reliability, ATDM, Roundabout Corridors, Sustained Spillback, Lane Blockage)
Alternative Intersections (DDI, DLT, RCUT/ MUT), Experienced Travel Time


William M. Sampson, P.E. is a faculty member of the University of Florida (UF) Department of Civil Engineering with nearly 40 years of experience. He is the Director of the McTrans Center and also is responsible for technical assistance and ongoing development of the Highway Capacity Software (HCS). He teaches two graduate courses (Traffic Engineering and Highway Capacity Analysis) at UF. He is a former member of the Transportation Research Board (TRB) Highway Capacity and Quality of Service (HCQS) committee.

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