Arrival Turning Flows
Average Daily Traffic
The Capacity modifier Cap is used by the HCM model and the geometric model.
Capacity is increased or reduced by - or + the input value.
The change in capacity for both HCM and geometric is the input value applied over the whole range of circulating flow, so the capacity line moves up or down but remains parallel to the original for both HCM and geometric.
Cap - + is not for calibration purposes but for making capacity changes for a variety of more temporary reasons. It can have different values in each peak whereas a Calibration change applies to all peaks equally. (Calibration follows)
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