Dynamic O-D Demand Estimation: Application of SPSA AD-PI Method in Conjunction with Different Assignment Strategies
Table 1
Experiment design.
Experiments
Type of DTA
Measures inside the OF for each type of DTA
Set I
DUE
OF1: link volume OF2: link volume + speed OF3: link volume + density OF4: link volume + queue length OF5: link volume + speed + density OF6: link volume + speed + queue length OF7: link volume + density + queue length OF8: link volume + density + speed + queue length
Set II
SO
Set III
DNL
Set IV
50% DUE – 50% SO
Set V
DNL + fixed DUE paths
Set VI
DNL + fixed DUE paths (highest O–D flows)
Set VII
DUE + fixed DUE paths (highest O–D flows)
Set VIII
QDTA
O.F.1: link volume O.F.2: link volume + speed O.F.3: link volume + density O.F.5: link volume + speed + density