Intersection Configuration

• Getting Started
• Predefined Settings
• Custom Phase Cycles

Getting Started

Getting Started

How to Begin / Opening the Menu

• As soon as you click on the traffic light icon in the upper left corner of the game in your toolbar, the main menu of TTE opens. It looks like this.
• To now configure intersections, click on the corresponding button.

**Main Menu**

- Don't be confused about "Mobility Hub", you won't find this feature in your mod version yet - it is in the early development phase.

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Selecting an Intersection

• Select "Edit intersection phases" in the open TTE menu.
• The selection tool is now activated and you can only click on intersections.
• ESC to exit the selection tool.

**Selection Tool**

Hover with the selection tool over the desired intersection and click with the left mouse button. This takes you to the editor of the respective intersection.

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Editing an Intersection

Once you have clicked on an intersection, you go directly to the editor of the respective intersection.
There are predefined quick-select phase templates, such as "Split Phase", or "Extended Split Phase".

**Intersection Editor** - In the editor you have an immediate rough overview of your selected intersection's data - You have **additional options**, e.g. **"Turn on red"** or "**Exclusive pedestrian phase**", to better adapt your intersection to local conditions

Predefined Settings

Predefined Settings

Predefined Modes

The mod comes with several predefined modes that can be sufficient in some situations to significantly improve intersection performance. These include the following - and what they do:

• Vanilla:
  Straight/turning protected, one turning side grants priority (LHT: Right turners / RHT: Left turners)
• Split Phase:
  Only one road approaching the intersection has green at a time
• Extended Split Phase:
  Like Split Phase, but additionally with protected turning lanes for the cross street
• Protected Left/Right Turn:
  First the turning lane switches (LHT: Left / RHT: Right), then the regular traffic flow for straight/opposite direction follows

For advanced **details** and **real vehicle counting, occupied lanes, waiting vehicles, etc.** a **custom phase cycle** is required

For complicated intersections it is always recommended to design custom phase cycles to experience the best performance and most fun with the mod's features

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Predefined Options

The mod comes with several predefined options with which you can extend the predefined modes, which can again significantly improve intersection performance. These include the following - and what they do:

• Allow Turn on Red:
  Allows turning (LHT: Left / RHT: Right) despite a red light
• Yield to Oncoming Vehicles (Vanilla only):
  Vehicles must watch for oncoming traffic when turning
  (High traffic volume can reduce effectiveness when drivers aggressively "push through")
• Exclusive Pedestrian Phase:
  All vehicles stop; a dedicated phase only for pedestrians becomes active
  • Pedestrian Phase Duration: Sets the green phase for pedestrians.
  • Note: Only active with "Exclusive Pedestrian Phase". The traffic lights are not "smart" and do not extend automatically

**Parameter Description**

- Minimum Duration: The phase must run at least this long, completely independent of whether there is high or low traffic on it
- Maximum Duration: The phase may be active for at most this long (e.g., to actively reduce phase duration on lower-traffic arms to favor main traffic directions)
- Target Duration: Influences (as one of two factors) the duration of the green phase. 2x = twice as long, etc.
- Lane Occupancy: Influences (as the second of two factors) the duration of the green phase, but target-controlled, not in principle like target duration, but ONLY when the lane is actually occupied by vehicles
- Interval Exponent: Vehicles and phases that would have to wait a long time are favored in Priority Mode to prevent them from "starving". However, this can be handled more elegantly with the more modern variant (Sequential Mode)

Custom Phase Cycles

Opening the Phase Editor Base Menu (PBM)

• In the dropdown menu, set the phase mode to "Custom Phase"
• Then click on "Program custom phases"
• The base menu of the Phase Editor opens
• Here you can also change the method by which phases are switched
  • Priority (Default), Switches based on current traffic volume
  • Sequential (TTE Mode), switches through phases in order

**Phase Editor (Base Menu)** Here you can manage your phases: **Create** phases, **move** phases, **edit** phases, **delete** phases, **copy** phases and **paste** phases

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Adding a Phase

• Click on "Add Phase", the phase menu opens immediately
• Set the parameters of the respective phase according to your preferences and local requirements
• Also set here which road users should be prioritized in a phase.
  For example, if a tram and individual traffic lane cross in a phase and you have set to prioritize public transit, traffic waits until the tram has passed the intersection

**Parameter Description**

- Minimum Duration: The phase must run at least this long, completely independent of whether there is high or low traffic on it
- Maximum Duration: The phase may be active for at most this long (e.g., to actively reduce phase duration on lower-traffic arms to favor main traffic directions)
- Target Duration: Influences (as one of two factors) the duration of the green phase. 2x = twice as long, etc.
- Lane Occupancy: Influences (as the second of two factors) the duration of the green phase, but target-controlled, not in principle like target duration, but ONLY when the lane is actually occupied by vehicles
- Interval Exponent: Vehicles and phases that would have to wait a long time are favored in Priority Mode to prevent them from "starving". However, this can be handled more elegantly with the more modern variant (Sequential Mode)

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Setting Phase Lane Release

Create multiple phases this way and essentially create an individual heartbeat for each of your important intersections.

• Create as many phases as you need to cover all intersection arms and turning lanes at your respective intersection
• Click on the red icon of the desired road user (cars/bicycles, public transit, pedestrians) to switch the corresponding traffic light from red to green
• Click again on the same symbol and the color changes to blue, which means that
• Click a third time to return the symbol to its default state (RED)

**TIPS**

1.: Create a separate pedestrian phase at intersections of major traffic arteries where many pedestrians also appear (most likely in the city center, or on later-planned major bypass roads, etc.)

2.: Important for "Green Wave":
The last phase in the overall cycle should (only relevant when using the "Green Wave" function) be an ADDITIONAL "useful phase" - i.e., a phase that transfers traffic on important routes, as the last phase is used by the sync system as a buffer for synchronization when overall cycle lengths of intersections in a group differ significantly or the number of phases of individual intersections differs too much.

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Copying and Pasting Phases

• Click on the checkbox "Select All" in the PBM, top left near the 3 buttons
• Adjust your selection if needed
• Click on the "Copy" button
• Switch to the PBM of the other intersection to which you want to add the phases
• Click on the "Paste" button, the middle one of the 3 buttons

**Copy/Paste Tool**

- The tool cannot work magic. For non-identical intersections the system will try to transfer as many signal switches as possible when copying, but you should check them again and adjust if necessary.
- When synchronizing intersections, when using the "Green Wave" function, the system can be best optimized when grouped intersections are perfectly aligned using the tool regarding timing settings, i.e., min. duration, max. duration, etc.