Decision Support Framework and Parameters for Dynamic Part-Time Shoulder Use:
Considerations for Opening Freeway Shoulders for Travel as a Traffic Management Strategy

Long Description for Figure 31. Charts. Compound figure depicts network delay comparison under various decision parameter variations and maximum demand to capacity ratios.

a) Network Delay: Slope Offset = 0; Shoulder Capacity = 1,600 veh/hr.

Graph shows delay in veh.hr on the Y axis and D/C Ratio on the X axis.

At 1.02 D/C ratio, the Delays are as follows: Base, 551; Speed Parameter (45 mph), 376; Speed Parameter (55 mph), 350; Volume Parameter (v=0.8*c), 233; Volume Parameter (v=0.7*c), 117.

At 1.04 D/C ratio, the Delays are as follows: Base, 616; Speed Parameter (45 mph), 409; Speed Parameter (55 mph), 399; Volume Parameter (v=0.8*c), 309; Volume Parameter (v=0.7*c), 131.

At 1.06 D/C ratio, the Delays are as follows: Base, 645; Speed Parameter (45 mph), 460; Speed Parameter (55 mph), 470; Volume Parameter (v=0.8*c), 359; Volume Parameter (v=0.7*c), 165.

At 1.08 D/C ratio, the Delays are as follows: Base, 667; Speed Parameter (45 mph), 470; Speed Parameter (55 mph), 484; Volume Parameter (v=0.8*c), 328; Volume Parameter (v=0.7*c), 214.