TRB Committee on Highway Capacity and Quality of Service (ACP40)

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Welcome to the HCQSC

The Highway Capacity and Quality of Service (HCQS) Committee (ACP40) is concerned with investigating the physical and non-physical factors which affect capacity, traffic flow, comfort, convenience, and safety; and is responsible for developing computational techniques for quantifying the effect of these factors on capacity, traffic flow; and quality of service.

Check out our upcoming meetings and webinars

Please visit our Meeting page to see our upcoming webinars and meetings. 

New HCM 7th Edition

See the HCM page for more information on the new HCM 7th Edition.

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