Research Article

Analysis of Driver Decisions at the Onset of Yellow at Signalized Intersections

Table 7

Parameter estimation results for models.

ParameterBinary logit model without new indicatorsBinary logit model with new indicatorsLatent class logit model
Class IClass II

Constant0.460 (0.651)−2.504 (1.214)1.498 (2.419)2.695 (2.755)
Gender0.306 (0.147)0.388 (0.151)2.038 (0.551)−1.303 (0.325)
2nd_drive−0.233 (0.177)−0.252 (0.178)0.002 (0.355)−0.709 (0.334)
3rd_drive−0.465 (0.180)−0.474 (0.181)−0.142 (0.362)−0.996 (0.349)
Time_Baseline−0.316 (0.196)−0.328 (0.198)−2.395 (0.688)1.578 (0.424)
Time_Income−0.353 (0.198)-0.367 (0.199)−2.493 (0.719)1.560 (0.430)
Time_Outgo−0.340 (0.198)−0.353 (0.199)−2.468 (0.705)1.594 (0.433)
Age0.460 (0.161)0.553 (0.165)−3.889 (1.480)0
DrR_Index5.144 (1.837)−10.479 (8.695)0
Ddr_Index−0.630 (0.597)−11.513 (3.486)0
Constant_Class10.186 (6.019)0
Class probabilities0.533 (0.403)0.467 (0.403)
Log likelihood−530.06−525.50−478.17
McFadden R-squared0.0200.0280.105
AIC1076.11071.0996.3

Tabular values indicate parameter estimates (standard errors) for each model. The symbols , , and mean statistical significance at α = 0.01, 0.05, 0.1, respectively.