Cities: Skylines II

Description

🔴Traffic

🟡Tool

🟢Essentials

This mod empowers you to optimize your traffic flow, allowing you to not only choose from predefined programs but also program your own phase cycles.

A bunch of features are waiting to improve your junctions!

Compatibility: Version 1.5.*

Guide (Currently available in DE, EN, CN):

https://shelf.zessons.de/shelves/traffic-tool-essentials

Features

✍🏻Phase Editor

• • Create custom traffic light phases for any intersection

  • Sequential Mode - Traffic lights cycle through phases in order

  • Split Phasing - Separate opposing traffic for safer intersections

  • Pedestrian Phases - Add exclusive pedestrian crossing phases

  • Copy and Paste - Transfer phases between intersections

  • Delete Confirmation - Prevents accidental phase deletion

💚Green💚Wave💚

• Group multiple intersections for synchronized timing

• Set custom offsets between intersections

• Real-time sync status display in Dashboard

• Automatic re-synchronization when timing drifts

🚗Traffic Overview Panel

• 24-hour traffic history as sparkline graph

• Real vehicle counting (not estimates!)

• Peak Hour and Max Vehicles/Hour display

• Waiting vehicles counter

• Data persists across save games

📈Statistics

• Timer display

• Priority information

• Vehicle flow monitoring

• Lane occupancy tracking

GREEN WAVE FEATURE SERVICE NOTE:

Newest update was an overhaul of the synchronization system of the Green Wave!

For users with existing sync groups:

Your Groups (more different in number of Phases per junction and/or different Total cycle length, the longer the system needs to find a way to compensate for the differences) need to resync again.

THAT CAN LEAD TO CHAOTIC PHASE BEHAVIOUR FOR SOME MINUTES/SOME VERY LONG HOLDING PHASES.

It's a slow, robust tanker. It takes a bit time, but it shouldn't disappoint in its functionality anymore, especially for new created Groups! Good Phaseplan-Planning supports the System :)

Planned Features

• Mobility Hubs

• Traffic Management Center (TMC)

• Quick-Cycle Templates

Acknowledgements

Current Development: ZessonsMOD in collaborational use of Claude (Anthropic AI)

🙏Legacy code: C2VMTLE (slyh)

Translation Heroes: SuperYYT, RilkeXS, angel84326, Jord38, PsykotropyK, TheL0ki, Simanova86, Stefano, macoto-hino, karmel68, djotabr, Mellaway, Fabio Rodriguez, and many more!

⚠️Warning: This mod stores extra data in your saves. Uninstalling while using affected saves may prevent them from loading. Be safe while uninstalling, but user reports mostly told about a safe uninstall!

FAQ

Why could it happen that I can't load my save after uninstalling the mod?

The mod stores data directly on game entities using Unity's ECS. When you uninstall the mod, the game may not find the component type definitions anymore, causing the save to fail loading. This is standard behavior for any mod that stores gameplay data - it's how Unity ECS works, not a bug - but could lead to unexpected behaviour

Screenshots

Changelog

2.2.2 - Released 2025-12-22

• Security

  • Added URL validation for external link handling

  • Re-enabled Burst compilation for optimal performance

• Critical Fixes

  • Fixed memory leak causing "JobTempAlloc" errors and log spam

  • Corrected native memory allocation for parallel job execution

• Performance

  • Logging system overhaul - 90% fewer log writes during normal operation

  • Debug logging now properly gated behind settings toggle

  • Log file renamed to "TrafficToolEssentials.log" for clarity

• Note on Antivirus

  • Some antivirus software (specifically BitDefender and products using the BitDefender engine) may flag this mod with a detection like: "Trojan.Pterodactyl.Hatchling.Gen.5" or just "Hatchling.Gen. This is a FALSE POSITIVE! The mod contains no malicious code.

  • Why This Happens

    • This mod uses Unity Burst Compiler to optimize performance-critical traffic light calculations and is a future proof need for upcoming funcions and systems of the Mod. Burst generates native machine code (a _win_x86_64.dll file) that:

      • Has no .NET metadata (looks "packed" to heuristic scanners)

      • Contains optimized assembly code (looks "obfuscated" to AI-based detection)

      • Uses patterns common in high-performance code that trigger generic heuristics

  • ####This is a known issue affecting many Unity games and mods that use Burst compilation.

• Which Scanners Use BitDefender Engine?

  • The following AV products all use the same BitDefender scanning engine and will show the same false positive:

    • BitDefender

    • ALYac

    • Arcabit

    • eScan

    • Emsisoft

    • GData

    • VIPRE

• Why We Keep Burst

  • Tested disabling Burst to avoid the false positive, but this caused: Memory leaks, Potential performance degradation, Game instability over long play sessions

• What You Can Do

  • Add an exception in your antivirus for the specific mod folder of the subscribed TTE mod

  • Whitelist the specific DLL: C2VM.TrafficToolEssentials_win_x86_64.dll

  • Report the false positive to BitDefender: https://www.bitdefender.com/consumer/support/answer/29358/

• THIS MOD DOES

  • URL Validation: Only allows HTTP/HTTPS URLs for external links (prevents command injection)

  • Path Sanitization: Removes invalid characters from filenames (prevents path traversal)

  • No Network Calls: The mod never connects to the internet

  • No Registry Access: Only uses standard game save locations

  • Typed JSON Parsing: No dynamic type loading from JSON (prevents deserialization attacks)

• Source Code

  • The complete source code is available at: https://github.com/ZessonsDE/TrafficToolEssentials