Traffic Architect

Traffic Architect is a road builder and traffic-management game. Build and transform the infrastructure network of a self-growing, fully simulated city, where every new building sends fresh trips onto your roads: people driving to work, trucks making deliveries.
Every traffic jam has a cause. You provide the creative fix: a few more lanes, a retimed signal, an extra road link, or a whole new highway with an interchange where the crossing used to be. Build it and watch the traffic flow.
And when more asphalt stops working, build a public transport network. A bus line with bus-only lanes, a rail link or a metro tunnel placed where people already travel fills up fast, and every rider is one less car in your junction.
Design the network
Upgrade roads through 11 tiers, from gravel tracks to boulevards and multi-lane highways

Cross rivers with bridges and mountains with tunnels in one simple move

Rebuild a jammed crossing as a full interchange in one click: 3-way compact or trumpet where three meet, a compact or wide cloverleaf where two roads cross

Shape the flow with one-way streets, turn restrictions and per-junction rules, then tune the traffic lights phase by phase

Traffic simulated car by car
Every vehicle is simulated. Follow a single car across town and see the jam from inside it

The people using your network report back, a smooth run, a long wait or a detour twice the direct distance, and a congestion heat map shows where the network hurts

Over two dozen live metrics, from queued cars to transit share, each charted across the whole run so you can see what a new interchange did to the numbers

Move beyond the car
Bus lines with routes and stops, plus bus lanes and bus-only roads so your buses don't sit in jams

Passenger rail and underground metro with stations, level crossings and tunnels. Passengers route across your entire network, bus, rail, metro, transfers included. Build connections, and people will use them

Freight rides the rails: dedicate lines, connect industry to demand, and the trucks come off your roads. Goods change trains at shared stations the same way passengers do

Build it your way
Traffic Challenges: puzzles where you build the interchanges by hand, one ramp at a time, then test whether enough cars get through

Creative mode: place buildings yourself, no budget and no way to lose

Full map editor: sculpt terrain, rivers, mountains and lakes, then play real runs on your own maps and share them on Steam Workshop

Large maps up to 18x18 km, with dense downtown districts and suburban settlements