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Roadway Information and Traffic Counts
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Traffic Counts
Traffic counts are taken at:
- 3,000 sites on all types of public roads throughout New Jersey
- 1,000 sites a year over 48 hour period, every three years
- As needed to support NJDOT functions
Traffic Monitoring System (TMS) is required by the Federal Highway Administration (FHWA). Traffic volume is classified by vehicle
types (number of axles) and weigh-in-motion (WIM) to identify commercial traffic.
To view counts on Live Report webpage:
Annual Group and Pattern Factors:
2011 Group and Pattern Factors (pdf 14k)
Developed from Automatic Vehicle Classification (AVC) and Weigh-in-Motion (WIM) stations to estimate average axles/vehicle. These factors are
applied to counts taken with tubes to adjust axle-pair counts to vehicles and trucks with three or more axles.
Traffic Count 2006-2010 data set with AADTs that can be imported into a GIS application
(zip 627k).
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