Distributed vehicle route planning

The techniques described herein relate to controlling and/or influencing the routes driven by vehicles, autonomous or otherwise, such as vehicles in a fleet of vehicles managed by a fleet management system. In some cases, the techniques described herein relate to centrally generating road weights using a remote system such as a fleet management system and providing those pre-calculated weights to vehicles to simplify onboard route planning. Rather than transmitting large amounts of raw traffic, road condition, and other data to each vehicle, the remote system pre-processes the data into condensed road weights optimized for route planning. This architecture provides various technical advantages such as reduced data transmission, decreased computational load on vehicles, and decentralized control of fleet-wide routing.