Geometry > Approach Geometry > Approach Geometry

Approach Geometry

Approach Geometry has six parameters displayed in the main window on the first data table.

HCM does not use the Grade Separation (G) or the number of approach lanes (n). These columns are blank when the HCM capacity model is selected.

The HCM capacity model does not use V, but V is used to check and warn if the approach road has insufficient capacity to accommodate the arrival flows. Default approach road and exit road capacities are provided (varying according to the environment selected). Default values can be replaced with local values in the Calibration data tables.


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