Based on your feedback, we have been working on a new major update in the past few weeks to further improve stability, performance and usability.

In particular, the RAM usage was significantly reduced, which leads to more stability and better performance.
Here are the highlights of the update:
More stability and better performance
Reworked bulldozer with construction costs refunding
New road construction mode for building straight roads
Better usability for example with line management
Various changes regarding modability as well as new debug tools
Countless small improvements and bug fixes
Please find the complete release notes here.
We will not stop improving Transport Fever 2, and be assured we look into your specific issues also in future. Thank you for your interest in the game and all the best from the entire Urban Games team!