An Integrated Metaheuristic Routing Method for Multiple-Block Warehouses with Ultranarrow Aisles and Access Restriction

Table 3

The average length of travel distances for all the methods (unit: meter).

Layout scenario	RNA	LNA	AGNA
1	247.65	247.65	247.65
2	231.14	231.14	231.14
3	208.90	208.90	171.55
4	381.48	381.48	381.48
5	370.02	370.02	370.02
6	411.86	411.86	346.48
7	296.15	296.15	263.05
8	261.81	262.78	261.64
9	313.63	312.04	263.48
10	495.13	492.15	409.51
11	341.70	340.67	329.56
12	534.14	532.94	498.92