Multiobjective Multidepot Capacitated Arc Routing Optimization Based on Hybrid Algorithm

Table 1

Symbol description.

Symbol	Definition
	Connected graph
	Set of all nodes in the graph,
	The set of arc paths in a graph
	Number of service arcs in the figure
	There are currently a total of k service arcs
	Sprinkler demand coefficient
	Length of arc path
	Depot i,
	The carrying capacity of each car
	The weight of each car
	Current load of the vehicle
	Fuel consumption rate (FCR)
	Weight of vehicle load (in tons)
	The distance between node and node in road network graph
	Load from node to node in road network graph
	Fuel consumption from node to node in road network diagram
	Carbon emissions
	Fuel consumption
	Fuel conversion factor, gasoline vehicle , diesel
	Path i
	Service arc set
	Boundary arc set
	Judging the critical threshold of boundary arc
	Collection of nodes for all service arcs