Empirical Studies on Traffic Flow in Inclement Weather
Figure 3.2. This figure presents five plots of field data, the Newell model, and the Van Aerde model on the following axes: speed-flow, speed-density, speed-headway, flow-density, and travel time-flow. The figure also shows values of the follow parameters for the Van Aerde Model and Newell, model, respectively: free speed, 80 kilometers per hour and 80 kilometers per hour; capacity 1,827 vehicles per hour and 1,558 vehicles per hour; speed-at-capacity, 61 kilometers per hour and 41 kilometers per hour; jam-density, 116 vehicles per kilometer and 116 vehicles per kilometer; wave speed, -24 kilometers per hour and -28 kilometers.
