Method for Finding the Optimal Schedule and Route in Contrained Home Healthcare Visit Scheduling

摘要

A method for finding the optimal schedule and route to visit all constrained and unconstrained nodes of a graph only once while respecting the associated time windows and system constraints. The constrained nodes are first grouped in clusters based on their time windows and system constraints. Then, unconstrained nodes are optimally assigned to the clusters by using a greedy heuristic. Subsequently, enumeration is used to solve the TDTSPTW by cluster. Once all clusters are solved, the paths are joined and a local search heuristic is used to improve the solution. The result of the method is an ordered set of nodes to be visited with their associated start times.