Dynamic O-D Demand Estimation: Application of SPSA AD-PI Method in Conjunction with Different Assignment Strategies

Table 8

Evaluation of the estimated demand as the Euclidean distance from the true O–D matrix and the total number of trips (adding O-D travel times).

Reference values	Euclidean distance; seed-true; 459	Total trips; seed matrix; 12,638	Total trips; true matrix; 18,900
Experiments	Euclidean distance; seed-estimated	Euclidean distance; true-estimated	Total trips; estimated demand
Set I
Average value	654.62	578.86	18,635
St.dev.	158.46	70.58	2,662
Set VI
Average value	566.22	539.25	17,335
St.dev.	16.68	17.68	155
Set VIII
Average value	211.00	508.69	12,845
St.dev.	75.87	28.37	147