How it works
Coordinate shared train fleets using flexible version 2.x scheduling behavior. Each stage in the walkthrough below has a distinct practical objective; complete the current supply or control loop before expanding it.
Practical advice
Before interrupts, prove that a train can load and unload using ordinary schedule stops with reliable item availability.
Mistakes to avoid
Never assume an unrelated blueprint or another version of Factorio has identical recipes, technology unlocks or machine ratios. Use the checkpoints in this guide to diagnose your own save.
Train interrupts and dispatch: complete walkthrough
Start from a normal route
Before interrupts, prove that a train can load and unload using ordinary schedule stops with reliable item availability.
Define an interrupt purpose
Choose a narrowly scoped reason such as refueling or a shared dispatch requirement. Set a trigger whose signals and conditions you can observe.
Verify station choices
Make matching station names and limits unambiguous. An interrupt should send the train somewhere reachable under the current rail network.
Test failure cases
Deliberately simulate a closed station, empty fuel reserve and conflicting priorities. Watch whether the train returns to its expected normal route.
Standardize the fleet
Only after a single train behaves predictably should its schedules and interrupts be reused for many stations or whole fleets.