algo-sc-routing
Vehicle Routing Problem (VRP)
Overview
VRP determines optimal routes for a fleet of vehicles to serve a set of customers from a depot, minimizing total distance or cost. NP-hard — exact solutions only feasible for small instances (< 25 nodes). Practical solutions use heuristics (Clarke-Wright savings, sweep) or metaheuristics (simulated annealing, genetic algorithm).
When to Use
Trigger conditions:
- Planning daily delivery routes for a fleet of vehicles
- Minimizing total travel distance/time under capacity constraints
- Optimizing route assignments across multiple vehicles
When NOT to use:
- For single-vehicle route optimization (use TSP solvers)
- For real-time dynamic routing with continuous order arrivals (use online algorithms)
Algorithm
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