Traffic on Highways Misbehaving
Symptom
One or more of the following may occur:
Vehicles aren't using all lanes on the highway
I activated Enable highway-specific lane merging/splitting rules but nothing changed
I made changes to my highway but vehicles are ignoring it
Traffic jams due to merging at last node before a junction
Causes
These symptoms are usually caused by incorrect mod settings, or not realizing that highway traffic doesn't update until new vehicles spawn.
Solution
If traffic is not using all lanes:
Enable Advanced AI in Gameplay Settings - this makes all traffic use more lanes
You can then use Dynamic lane selection (DLS) in Gameplay Settings for even more lane changes
When using DLS, you might see traffic jams caused by vehicles all trying to use the middle lane just before junctions:
Alter the DLS slider to under 50% (values of 30%-40% seem to work well on most cities)
We are working on improving DLS to avoid this issue ( see #263)
If traffic is not behaving properly at highway junctions:
Enable highway-specific lane merging/splitting rules in Policies Settings
Was it Fixed?
If not, please let us know: Report a Bug
Other problems? See: 👉 Troubleshooting