Series context: This is Part 7 of the E-commerce Order Allocation series. The distance matrix built here feeds directly into the OR-Tools VRP solver in Part 6.
The Invisible yet Most Expensive Bottleneck in E-commerce Routing
Answer-first: For 1 warehouse + 100 delivery stops, you need 10,201 pairwise distances. Self-hosting GraphHopper or OSRM on a $20/month VPS delivers…