If you've been using the Lane Changer in Traffic Manager, this is the Traffic++ equivalent.

If you're new to Traffic++ you'll probably have to enable the Traffic++ lane changer, which is part of the Road Customisation Tool. For more information, see the FAQ.


An introduction to the basics of customising lane routes at intersections...

Intersections are formed wherever two or more roads join together. By default, traffic from one lane will be able to drive to any of the 'exit' lanes at the intersection, and this can lead to chaos with cars cutting across each other's paths. I had a small roundabout facing just this problem every time a wave of cargo trucks were caused by deliveries to a nearby train station...

Tip: It helps to pause the game when there's a lull in traffic so you can get a clearer view of the roads when editing.


Click the car icon that appears at the end of the main toolbar - this enables road customisation mode.

Can't see the icon? See Main FAQ.

Hover the mouse over an intersection and you'll see a blue circle appear indicating that you can edit it....

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Left click the intersection to go in to edit mode. Small circles will appear on each lane that acts as a traffic 'source' for the intersection (where traffic enters the intersection).

http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=436494625

At this intersection there are three sources - 2 from the roundabout itself (purple, green) and one from the road coming in to the roundabout (orange).

Note: The colours are random.


Let's get some traffic on to the roundabout; left-click the orange circle (source). You'll get a line of the same colour that follows the mouse around, and applicable 'target' lanes (where traffic can leave the intersection) will now get little circles on them...

http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=436494669

There's two applicable targets for our orange source - the pink and green circles. Move the mouse over each of them in turn and left-click to place a route.

Note: Left-clicking a second time will remove the route.


Right-click once to go back to the 'source' mode (where all source lanes are indicated) and then left-click on the next source you want to route.

In my case, I wanted traffic to always use the outermost roundabout lane when exiting the roundabout...

http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=436494707

As you can see, we've got the two orange routes for traffic joining the roundabout, and now a green exit route for traffic leaving the roundabout.

The only lane we've not yet customised is the inner-most lane (purple) on the roundabout. Here's what I did:

http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=436494536

I set up all the other junctions on the roundabout the same way. It means that traffic leaving the roundabout has to get to the outer lane at the previous intersection, which frees up the inner lane for traffic that's wanting to go further round, which in turn means far less traffic on the outer lane where new traffic is entering.


I've customised the route, but traffic is still using old route?!

The sat nav doesn't update immediately :P Drivers plan their routes when starting their next journey. If they're already on the road they will continue to use their old route.

You can either wait (what, patience?!) and they'll update themselves, or if you're also using Traffic Manager mod you can Despawn Vehicles to clear away existing traffic (all new traffic will know about your customisations).

What if I want to revert to default lane routing?

Simply remove all the coloured lines (select a source, then click it's current destinations to remove the lines from them; then right-click and repeat until there are no lines left).

What happens to source lanes that have no target?

Currently if you don't set a target for a source lane, the game will default to allowing any of the applicable targets for that source to be used just like normal.

What happens if I do something wrong?

Traffic will find alternative routes. That's assuming there are alternate routes!

What are the common mistakes?

Think about lane restrictions. For example, if you route a bus-only lane to a cargo-only lane, you're going to get problems because busses can't go on cargo-only lanes.