Adjustment Of Models

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.