Signal Timing Optimization for Corridors with Multiple Highway-Rail Grade Crossings Using Genetic Algorithm

Table 1

Decision variables for signal optimization.

Group 1: basic signal parameters^1	Group 2: preemption-related parameters^2
(i) Cycle length (); (ii) Maximum green (); (iii) Offset ()	(i) APWT (τ_EB and τ_WB); (ii) Track clearance time (TCT); (iii) Exit phase duration (EP)

to all signalized intersections in corridor.   to all signalized IHRGCs in corridor.