From Traffic Manager: President Edition
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Most parts of Traffic Manager: President Edition are configurable. Note that all mod settings except the options inside first General section are saved separately for each savegame. To configure the mod, please first start/load a game, then press Escape (or click the "gear" icon in the upper right corner), click on Options and select Traffic Manager: President Edition on the left side. When accessing the mod options dialog via the game's main menu, settings are not saved and a message box will appear.


This tab contains general mod settings which affect both core functionality and performance.


The language dropdown contains languages that are not officially supported by the game.

Lock main menu (button) position

These two options control if the main menu button and main menu itself can be moved around. Tick the checkboxes in order to fixate the respective element to its current screen location.

Simulation accuracy

When simulating vehicle behavior atjunctions with priority signs or timed traffic lights generally not all vehicles are considered during the calculations (due to the desired limitation of required computing power). Selecting one of the provided accuracy levels lets you control how many computational resources are invested in calculating those type of junctions.

Customizations come into effect instantaneously

If enabled, changes to

  • lane arrows,
  • lane connections,
  • vehicle restrictions, and
  • junction restrictions

come into effect immediately. Note that this may lead to performance degradation on weaker systems: When the option is activated all paths that traverse the modified (road) segment have to be recalculated.

Activated features

Use the available checkboxes to enable or disable individual mod features. Disabling a feature may have a positive effect on system performance. Disabling a feature does remove any changes that were carried out with it (e.g. existing timed traffic lights, priority signs, etc. are stored even if these features are disabled).


This tab contains gameplay related settings that affect overall game difficulty and simulation realism.

Reckless driving

Some cims do not like sticking to the rules. With reckless driving enabled you may control how many of the vehicles

  • ignore priority signs,
  • ignore red traffic lights,
  • enter blocked junctions,
  • drive way too fast and
  • park wherever they want.

Realistic speeds

If this option is enabled, actual speed varies from car to car. In the base game, vehicles always drive as fast as speed limits, road condition and the car itself allow.

Road condition has a bigger impact on vehicle speed

In the base game, repairing roads with maintenance trucks only raises the maximum vehicle speed. With this option enabled, vehicles drive slower on unmaintained roads.

Enable despawning

See Toggle despawn.

Advanced Vehicle AI

Traffic Manager: President Edition is equipped with a modified path-finding algorithm: The Advanced Vehicle AI improves overall traffic in multiple aspects.

  • Vehicles choose their routes based on the current traffic situation.
  • Overall lane usage is diversified.

Further reading: Advanced Vehicle AI

Highway specific lane merging/splitting rules

When exiting/entering a highway vehicles switch to/come from a designated lane in real-life. These so called deceleration/acceleration lanes are needed in order to maintain a steady traffic flow on the highway and to ensure safety. In real-life there are rules how highway lanes are merged or splitted. TM:PE implements these rules for all highway roads and restricts the set of allowed lane changes on highways if you enable highway specific lane merging/splitting rules.

Further reading: Highway rules

Parking AI

You may have noticed that cims sometimes spawn a car at their current position or that cars suddenly disappear (especially noticeable at public transport stations). This (mis)behavior is also known as "using pocket cars". The reason is that cims do not care much about parking spaces. If a free parking space lies in the close vicinity where cims want to get rid of their car everything is fine. But the base game does not come anywhere near real-life behavior when talking about parking and returning to/using a parked vehicle. This is the point where the Parking AI comes into play.

Instead of having a ready-to-use car in their pockets, after enabling the checkbox Enable more realistic parking cims ordinarily try to park their car before reaching their target (up to 10 times, then they give up). If cims decide to use their car to go somewhere they also first walk to their parked car, enter it and then continue their journey (In the base game they would only enter their car if it coincidentally lied along their designated route).

Further reading: Parking AI

Policies & Restrictions

This tab contains options to allow/disallow certain behaviors.

Busses may ignore lane arrows

Normally, each vehicle obeys the allowed directions you define by setting lane arrows. For public transport busses this may pose a problem: If bus stops and junctions are close together, busses might not get the opportunity to change lanes after leaving the bus stop in order to turn left or right (depending on your traffic system). This results in the layout of needlessly complex transport lines with busses being forced to take round trips instead of direct turns.

Busses going from A to B have to take a longer route because they are not allowed to ignore lane arrows.

Vehicles may enter blocked junctions

When junctions are close together vehicles may stop in front of green traffic lights because the next road segment is full of vehicles. To circumvent this problem you can enable the option to allow vehicles to always enter a junction if the traffic lights shows green. This feature also makes it possible to lay out micro-roundabouts having priority signs.

The setting that you define inside the option dialog may be overridden for certain junctions. See Junction restrictions for more information.

Vehicles may do u-turns at junctions

If enabled, you allow vehicles to turn around at junctions.

The setting that you define inside the option dialog may be overridden for certain junctions. See Junction restrictions for more information.

Vehicles going straight may change lanes at junctions

If enabled, you allow vehicles to change their lane while crossing a junction if they stay on the road (that means they are not turning left or right).

The setting that you define inside the option dialog may be overridden for certain junctions. See Junction restrictions for more information.

Evacuation busses may ignore traffic rules (Natural Disasters DLC required)

If enabled, evacuation busses behave like emergency vehicles/reckless drivers: They ignore priority signs, traffic lights and drive faster than allowed.


This tab contains options to permanently activate or disable available overlays. Enable the appropriate checkbox in order to see information overlays even if the respective tool is not active.


This tab contains maintenance options. Under normal circumstances these settings should not bother you.

Reset stuck cims and vehicles

If a vehicle gets stuck and you do not want to use the Clear Traffic button or a cim does not move anymore you can use this button to remove them from the game.

Reload global configuration

Reloads the global configuration file (.../steamapps/common/Cities_Skylines/TMPE_GlobalConfig.xml). This button should not bother you at the moment (until I finally decide to document all the available options).

Reset global configuration

Sets the global configuration back to default.

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