Research Article

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

Table 3

Efficacy of the O–D estimation method in terms of reduction of the errors in measures reproductions.

ExperimentsLink volumeSpeedDensityOutflowLeft-turn movementsQueue length

Set I
 Average reduction [%]
 St.dev. [%]0.526.690.5016.1681.633.23
Set II
 Average reduction [%]
 st.dev. [%]20.9723.7420.5022.7166.8623.50
Set IV
 Average reduction [%]
 St.dev. [%]7.0212.418.5037.3434.7713.23
Set V
 Average reduction
 st.dev. 29.7629.7220.5035.37119.2630.05
Set VI
 Average reduction [%]
 St.dev. [%]27.5527.9625.4029.16130.9628.16
Set VII
 Average reduction [%]
 St.dev. [%]24.2723.1422.4515.99446.0321.72
Set VIII
 Average reduction [%]---
 St.dev. [%]14.8112.4815.30---