How to Add AI Traffic to Your BeamMP Server

BeamMP supports AI traffic through BeamNG.drive's built-in Traffic app. The traffic vehicles are simulated by the players' clients rather than the dedicated server, so there is no server-side toggle, but the server's per-player vehicle limit must be high enough to allow the traffic cars to exist.

Before You Start

AI traffic uses the same vehicle slots as player-spawned cars. Raise MaxCars (the per-player vehicle limit) before spawning traffic, or the traffic will fail to appear or disconnect clients. A value of 10 leaves room for several AI cars plus your own vehicles.

Step 1: Set the Vehicle Limit

1. In the NolimitHost Game Panel, stop your BeamMP server.
2. Open the Startup tab and set Max Cars, or edit MaxCars in ServerConfig.toml directly:

   [General]
   MaxCars = 10

3. Save and start the server.

Step 2: Add the Traffic App In-Game

1. Connect to your server through the BeamMP client. See Connect to Your Server.
2. Press Esc to open the menu, then go to UI Apps and choose Add App.
3. Search for Traffic and add the Traffic app.
4. Use the Traffic panel to set the number of cars, the speed limit, and the AI mode (for example Chase, Flee, Random, or Traffic).

Things to Keep in Mind

• Everyone counts toward the limit. All cars on the map, whether spawned by players or by traffic, share the per-player vehicle cap, so raise MaxCars before spawning traffic.
• Traffic is not persistent. AI cars you add are removed when you leave the server.
• Low limits crash clients. On servers with a very low MaxCars, spawning traffic can crash BeamNG instead of simply failing, because BeamMP blocks the extra vehicles while the game still tries to create them.
• Performance. AI traffic is simulated by clients, so more cars means more CPU load for everyone connected.