Block, path and one-way signals
Semaphore signals are used until 1950 and light signals after it; both behave the same way. The signal’s behavior is what matters.
| Signal | How it works | Use it for |
|---|---|---|
| Path signal (standard) | Reserves only the path to the next signal, tram lane or reversal stop | Junctions and station throats where routes cross |
| Block signal | Turns red while any train occupies the block behind it | Plain line sections with no crossing paths |
| One-way signal | Set in the signal window; cannot be passed from behind, and opposite-facing signals are ignored | Enforcing right- or left-hand running on double track |
Sources: TF3 manual · Railway Signals
Double track without deadlocks
- Lay a second track and set one-way signals so each track carries one direction.
- Split long sections into several blocks; more blocks mean more trains on the line.
- On single track, signal both ends of every passing siding. Without them, two trains reserve overlapping paths and deadlock.
- Remember that stations do not act as signals, even when they are a stop on the line.
- Leave room for the longest train between a signal and the switch behind it.
Sources: TF3 manual · Railway Signals
Junction and station design
Because path signals reserve only the route a train needs, trains can use a crossover at the same time when their paths do not overlap. A train waiting at a signal can still block a crossing, so move signals back from switches.
For alternative terminals, the decision point is the last signal before the station; every enabled alternative must be reachable from that signal. Raising a line’s priority makes its trains reserve track further ahead, so express services are not held by slower trains.
Sources: TF3 manual · Railway Signals · TF3 manual · Lines and Vehicles
Match wagons to cargo
Loading speed depends on the cargo, the vehicle’s specialization, the terminal’s specialization and any warehouse’s. Matching specializations load faster; mismatches load slower.
| Specialization | Cargo it carries |
|---|---|
| Liquid | Chemicals, Crude Oil, Dyes, Fuel, Rubber |
| Bulk | Cement, Clay, Coal, Fertilizer, Grain, Iron Ore, Sand, Sawdust, Stone |
| Flatbed | Logs, Machines, Planks, Sheet Metal, Steel, Vehicles |
| Goods | Beverages, Books, Bricks, Canned Food, Clothes, Fabric, Fish, Furniture, Glass, Meat, Paper, Plastic, Tires, Tools, Vegetables, Wool |
Sources: TF3 manual · Lines and Vehicles · TF3 manual · Industries and Cargo
Vehicle families and eras
The vehicle store in your save is the reliable list for your date and enabled content: filter by cargo, then compare availability, loading speed, capacity and running costs. TF3 adds cargo trams and tram-trains that can use railway track, and the Deluxe edition adds named vehicles across families, including a Sikorsky S-76 helicopter.
| Family | First thing to check |
|---|---|
| Trains | Locomotive or multiple unit; compatible wagons and track |
| Trucks | Cargo specialization accepted at the destination |
| Trams and tram-trains | Passenger or cargo tram; tram or railway connection |
| Ships | Navigable route and port compatibility |
| Aircraft | Airfield or airport compatibility |
| Helicopters | Helicopter depot and landing sites |
Sources: TF3 manual · Lines and Vehicles · Urban Games · Infrastructure dev blog · Steam · TF3 developer listing
Where this answer comes from
Checked 2026-10-14. Each claim links to the published material it comes from. Inspection sequences are Routebook’s editorial suggestions.
- TF3 manual · Railway Signals Official wiki
- TF3 manual · Lines and Vehicles Official wiki
- TF3 manual · Industries and Cargo Official wiki
- Urban Games · Infrastructure dev blog Developer · 14 Jan 2026
- Steam · TF3 developer listing Official store