Performance Comparison of Real-Time Yard Crane Dispatching Strategies at Nontransshipment Container Terminals

Table 2

Comparing the results between the mathematical model and the simulation model.

Data contents	Value by mathematical model (A)	Average by simulation		Gap between A and B (%)	Gap between A and C (%)
		Separate stacking (B)	Scattered stacking (C)
Expected YT round-trip time	2.86	2.83	2.82	−1.07	−1.42
Expected ET round-trip time	3.35	3.38	3.38	1.01	1.01
Expected YC gantry time	0.77	0.76	0.75	−0.61	−2.17
Expected YC handling time	2.20	2.20	2.21	0.18	0.65
Expected truck waiting time in yard	4.81	4.43	5.20	−7.76	8.25
Expected QC handling time	1.50	1.53	1.61	2.00	7.33
Expected YT waiting time under QC	5.43	5.86	5.24	7.89	−3.54