Calibration and Adjustment of System Planning Models

Dane Ismart

ene 1991 · Federal Highway Administration

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This manual describes quick and simple procedures for calibrating and adjusting systemwide transportation models so they replicate existing ground counts and can be used in forecasting. It includes a troubleshooting section that describes various problems and gives possible solutions. The contents are as follows: (1) Introduction; (2) Networks; (3) Trip Generation; (4) Auto Occupancy; (5) Trip Distribution; (6) Traffic Assignment; (7) Transit Ridership Effects on Highway Volumes; (8) External Stations; (9) System Changes Versus Local Changes; (10) Expected and Required Accuracy; (11) Conclusions; and (12) Troubleshooting.