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🏛️Federal & Industry Standards
Highway Capacity Manual (HCM)
WebNew Hampshire Department of Transportation (NHDOT)2016 Standard Specifications
The Highway Capacity Manual provides methods for quantifying highway capacity and determining quality of service for transportation facilities including freeways, highways, arterials, roundabouts, signalized and unsignalized intersections, and transit.
Published by the Transportation Research Board (TRB). 7th Edition, 2022.
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