PYT - Tram Doctor

✔ Tested against Transport Fever 3 build 40425 (29 October 2026).

YOUR TRAMS, BACK ON TRACK — IN ONE CLICK.

Every tram line on your map checked in one window: are the stops on the tram lane, is the track joined up, are the wires there? Fix what’s wrong with a click — or fly straight to it.

PYT - Tram Doctor. A PYT (Play Your Transport) mod by Epod. Works on its own — no other mods needed.

📓 A gift to all my fellow modders: Transport Fever Modder Field Notes — everything we have learned building these mods, free for anyone to use.

Trams are the fiddliest thing in the game to set up. You lay the track, place the stops, buy the trams — and they sit in the depot, turn round halfway, or drive a lap of the town to reach a stop across the street. Tram Doctor follows every line the way a tram drives it, tells you what’s wrong in plain words, and fixes what it can.

Deutsch? Eine Kurzfassung auf Deutsch findet ihr weiter unten.

NEW IN 1.0.3 — THE RIGHT TOOL

The grey road tool button looked like a button and acted like a sticker. Now it does something: it flies you to the road piece the doctor can't fix itself and tells you what to build there — click again for the next piece. And Tram Doctor on its own now has its PYT — Settings (language, the PYT button fade).

Neu in 1.0.3: Der Knopf „Straßenwerkzeug“ fliegt jetzt zum Straßenstück und sagt, was dort zu bauen ist; PYT — Einstellungen (Sprache, Ausblenden) auch ohne andere PYT-Mods.

VERSION 1.0.2 — QUIET PLEASE

Our NEW button bounced like a puppy at the door, shoving every button beside it. It has been rehomed. And clicking the PYT row could pull the rug out from under the game — the rug is now nailed down.

In plain terms: clicking the PYT row no longer crashes the game, the NEWS button is gone, and PYT — Settings no longer stutters on big maps.

• Fixed: on big saves the game could freeze for about a second every 10 seconds, even with no window open — the same fix as PYT - Minimap 1.4.1
• Fixed: clicking the PYT icon or a tile in its row could crash the game — the button was taken away while the game was still handling the click (seen together with the Mod Bar mod)
• Gone: the NEWS button in the PYT row. It bounced and pushed other buttons around, and you told us you didn't want it — we listen
• Tidier: the PYT row shows one settings cog (some setups showed two), and the 'fade until the mouse is over it' setting is always in PYT — Settings
• Smoother: with PYT — Settings open on a big map, its performance meter no longer stalls the game every 10 seconds (it could make the sound flutter) — it reads once when you open it, then every 2 minutes
• Thanks: to QuickNiq for the crash log and honest feedback, and to the Mod Bar players who spoke up

Neu in 1.0.2: Ein Klick in die PYT-Leiste lässt das Spiel nicht mehr abstürzen, der NEWS-Knopf ist weg, und PYT — Settings ruckelt auf großen Karten nicht mehr.

NEW IN 1.0.1 — TACK! ДЯКУЮ!

The doctor has been learning languages. Two more, to be exact — for some very important people in Epod’s house.

• In plain terms: Tram Doctor now speaks Swedish and Ukrainian, and follows the PYT Language setting like the rest of the family (Auto still uses the game’s language)
• Never a cargo bay: a station bay that handles cargo is no longer picked for buses or trams when the stop has a passenger bay — and a line already on one is flagged, with Fix moving it (thanks Epod, who had to move one by hand)
• Station bays to spare: at a station building the line gets the station's other fitting bays as alternatives, so trams and buses use any free one — and cargo trams get cargo bays
• PYT — Settings: the PYT button can fade until your mouse is over it
• Something reads oddly? Tell us in the comments — we fix translations fast

NEW IN 1.0 — THE DOCTOR WILL SEE YOU NOW

Your trams have been suffering in silence. Not any more.

In plain terms: this is the first release — everything below is new.

WHAT YOU GET

• Stops — a stop on a wide street has a bay per lane, and trams can only use the ones on the tram lanes. A line set to the wrong bay, or to the wrong side of the road, is found — and Fix the stop switches it
• Track — every stretch from stop to stop followed the way a tram drives it. A missing piece, or a junction where the tracks don’t join, is pointed out, and Lay tram track or Join the tracks fixes it
• Power — electric trams need wires all the way. Unwired pieces are counted and Wire puts the wires up
• Turning round — a tram can’t U-turn in the street. A line that needs to is caught, with the ways out: a turning station, track round the block, Split into two lines, or Turn at a station that is already on the line. A loop with no station to turn in? Make 2 tram lines, one each way — nothing ever turns round, and the old buses are sold and their line retired
• The long way round — stops on the wrong side send trams on a lap round the block. The doctor plans the whole line and tells you what it costs
• The game’s own verdict — what the game’s line check says, with the exact spot
• Make the reverse line — the same stops the other way round, with a tram (or a bus) to start it — on any tram or bus line
• Tidy the line — a line that zig-zags, or visits the same stop again and again, gets a clean round: each stop once, once round the town, without driving the same street twice
• Electrify the tram track — wires on every piece your trams drive, whenever you’re ready for electric trams
• Houses in the way? — the tram street is a little wider; Lay it anyway clears them, as the road tool does (your town may grumble)
• The right trams — Create tram line buys trams that can run on your track: electric ones only when the wires are up
• Your town first — the lines of the town the camera is on come to the top of the list
• Bus lines too — every bus stop checked for the side of the road its buses drive on
• From buses to trams — plan a bus line for trams (the → tram button) and see what it would need. Lay tram track along the route in one go, Create tram line with enough trams to seat at least what the buses did, then Retire the bus line when you’re ready (its buses are sold). Street mods that bring their own tram streets are used too
• Show me — click any problem and the camera flies there
• In your language — the window speaks your language: English plus 14 more, the same as the PYT Language setting

HOW TO START

1. Click the PYT button in the top bar, then Tram Doctor (the tram with the first-aid badge)
2. Your tram lines are listed on the left, your bus lines below. Pick one: what’s wrong shows on the right
3. Press the fix — or click the problem to fly there and fix it yourself. Nothing changes until you press a button

Mod developer’s tip: save before the big ones — laying track along a whole route or retiring a bus line changes a lot at once.

FÜR UNSERE DEUTSCHEN FREUNDE

Getestet mit Transport Fever 3, Build 40425.

Neu in 1.0.1: Tram Doctor spricht jetzt auch Schwedisch und Ukrainisch und folgt der PYT-Spracheinstellung. Außerdem: nie mehr eine Frachtbucht für Busse und Straßenbahnen, an Bahnhofsgebäuden die anderen passenden Buchten als Ausweichbuchten, und der PYT-Knopf kann verblassen, bis die Maus darüber ist.

Neu in 1.0: die erste Version – alles unten ist neu.

Germany is PYT's biggest supporter; here is the short version in German.

Danke, Deutschland! Die meisten PYT-Spieler kommen aus Deutschland – ihr seid unsere größten Unterstützer. Unser Deutsch ist nicht perfekt: Wenn euch ein holpriger Satz auffällt, schreibt es gern in die Kommentare.

Worum es geht: Tram Doctor prüft jede Straßenbahnlinie so, wie eine Straßenbahn sie fährt – Halte, Gleis und Oberleitung – und behebt, was es kann, mit einem Klick.

• Halte: falsche Bucht oder falsche Straßenseite wird gefunden und die Linie umgestellt
• Gleis und Oberleitung: fehlende Stücke und Kreuzungen, an denen die Gleise nicht verbunden sind – verlegen, verbinden, verkabeln
• Wenden: Straßenbahnen können auf der Straße nicht wenden – Wendestation, Gleis um den Block, Linie teilen oder in einer Station wenden. Ein Ring ohne Station: 2 Straßenbahnlinien, eine je Richtung
• Vom Bus zur Straßenbahn: Buslinie planen, Gleis entlang der Strecke verlegen, Straßenbahnlinie mit genug Plätzen anlegen, Buslinie stilllegen (die Busse werden verkauft)
• Linie aufräumen: jede Haltestelle einmal, einmal um die Stadt – ohne dieselbe Straße zweimal zu fahren
• Straßenbahngleis elektrifizieren, Gegenlinie für jede Bahn- und Buslinie, Häuser im Weg auf Wunsch abreißen
• Die Linien der Stadt, über der die Kamera steht, stehen oben in der Liste
• Ein Klick auf ein Problem fliegt die Kamera hin. Das Fenster ist auf Deutsch

HOW PYT IS MADE

Epod designs, directs and tests every mod; AI tools help write the code, build the models and draw some of the artwork. Everything is tested in game before release, and every comment gets read. The screenshots are real in-game footage.

MORE FROM:

Enjoying PYT? Follow the PYT Collection to discover our latest Transport Fever 3 mods.

• PYT - Pay Your Tolls — toll signs, gantries and plazas that pay you
• PYT - Mega Warehouse — a locked store for every cargo, the stock on show
• PYT - Factory Buffer — a locked store for every cargo your factory needs
• PYT - Early Mixed Cargo Trucks — 4 types of cargo in one truck — 1890 to 1985
• PYT - Late Mixed Cargo Trucks — 4 types of cargo in one truck — 1975 to 2025
• PYT - Mixed Cargo Vanilla Conversion Kit — the game's own vehicles — trucks to ships — now with mixed cargo
• PYT - Load Planner — plan every load with sliders — and see it
• PYT - Minimap — your whole map at a glance, and a click away
• PYT - A Plus — your own line names — by hand or automatically
• PYT - Town Signs — your town's name and population — WELCOME in, SEE YOU SOON out
• PYT - Distance Signs — the towns ahead by real road distance, the capital crowned
• PYT - Speed Signs — speed signs that read the road and follow it
• PYT - Blueprint Exchange — copy, paste and share whole layouts
• PYT - Harbour City — the Wave toll plaza, from 1990
• PYT - 1940 Home Front — the 1940 Home Front toll plaza
• PYT - Drones — cargo drones over the traffic
• All our mods and tools: tfbpx.com/resources.html

One button. The whole PYT family. Every PYT mod you add slots into this one button in your game’s top bar — better than 50 buttons all over your screen! Ein Knopf, die ganze PYT-Familie: jede PYT-Mod landet in diesem einen Knopf oben im Spiel.

A SMALL ASK

If Tram Doctor got your trams moving, a thumbs up goes a long way on mod.io. Something not working? Leave a comment — fixes usually land within days.

Follow TheEpod on mod.io (click the name at the top of this page) to hear about new PYT mods first.

Version 1.0.3 — PYT — Created by Epod, built by the world.