1. Separate Truck and Commuter Traffic: Mixing freight and commuter traffic can lead to severe congestion. Use the Heavy Traffic Ban district policy to direct trucks away from residential areas and commuter-heavy roads.

2. Highway as a City Spine: Designate a highway as the backbone of your city. Pair this with a proper road hierarchy (highways > arterial roads > collector roads > local streets) to ensure smooth traffic flow throughout the city.

3. Effective Use of Roundabouts: Avoid small roundabouts as they slow down traffic and cause congestion. Build larger, strategically placed roundabouts to keep traffic moving efficiently.

1. Leverage Districts and Policies: Use districts to control traffic, manage industrial activity, and apply specialized city policies. For detailed insights, Districts & Policies[forum.paradoxplaza.com] from Cities Skylines 1 Wiki.

2. Pollution Control: Separate heavy-pollution industries from residential zones to improve quality of life. Use buffer zones, such as forests or farmland, between residential and industrial areas to reduce pollution impact.

3. Noise Pollution Mitigation: Use roads with decorative trees or sound barriers to reduce noise pollution. Offices can act as a noise buffer between commercial and residential areas.

1. Agriculture and Forestry: These industries produce no pollution and can act as buffer zones. They can operate without natural resources by importing them, making them versatile and renewable options for city planning.

1. Paths for Reduced Traffic: Pedestrian and bicycle paths reduce traffic congestion by encouraging walking and biking. Elevated paths can cross over roads, providing safe and efficient transit options for residents.

1. Control Building Orientation: When placing buildings, move the mouse towards the road you want the building to face. This technique ensures optimal layout and accessibility.

Smart Zoning:

1. Place commercial zones between residential and industrial areas to act as a buffer.
2. Use offices wherever necessary since they provide jobs without generating significant traffic.