Convergence Study of Minimizing the Nonconvex Total Delay Using the Lane-Based Optimization Method for Signal-Controlled Junctions

Table 3

Statistics of the example problem.

Model variables	Number of variables	Constraints	Number of constraints
Binary variables	142	Cutting planes	93
Permitted movements	40	Starts of green	58
Successor functions	102	Durations of green	60
		Order of signal displays	51
Continuous variables	110	Clearance times	68
Lane flows	48	Cycle length	1
Starts of green	29	Maximum acceptable degree of saturation	16
Durations of green	30	Flow conservations	12
Cycle length	1	Minimum permitted movements in a lane	8
Common flow multiplier	1	Maximum permitted movements at exits	3
Auxiliary variable	1	Prohibited movements	40
		Permitted movements across adjacent lanes	72
		Flow factors	72
		Lane signal settings	176
		Others	53
Total number	252		783