Transportation Research Circular E-C014: Traffic Analysis Software Tools
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HCS-Multilane
The HCS-Multilane method is used for analyzing uninterrupted flow
on rural and suburban
artery highways, based on Chapter 7 of the HCM.
Data required for multilane analysis include traffic and roadway conditions, such as
hourly traffic volumes and peak hour factors, terrain type, number of lanes, grade, vehicle
classification and composition, free-flow speed, median type, lateral clearance and number
of access points per mile. The results of the analysis include
service flow rate, free-flow
speed, average passenger-car speed, density and LOS. The LOS is defined by the density of
traffic.
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