A Geo-Aware and VRP-Based Public Bicycle Redistribution System

Table 1

Notations for the VRP and bicycle redistribution.

Notation	VRP	Bicycle redistribution
𝑚	The number of vehicles	The number of vehicles
𝑛	The number of vertexes	The number of stations
𝑞𝑖	Demand/supply at vertex 𝑖	Demand/supply at station 𝑖
𝑑𝑖	Service duration at vertex 𝑖	The time of redistributing bikes at station 𝑖
𝐶𝑖𝑗	Cost to traverse arc or edge (𝑖,𝑗)	Travel cost from stations 𝑖 and 𝑗
𝐷𝑖𝑗	Distance from vertex 𝑖 to vertex 𝑗	Distance from stations 𝑖 to 𝑗
𝑇𝑖𝑗	Travel time from vertex 𝑖 to vertex 𝑗	Travel time from stations 𝑖 to 𝑗
𝐶	The capacity of vehicles	The capacity of vehicles
𝑇	The maximum route duration of vehicles	The maximum working time of staff