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San Rico - Perfect Zoning for big city (600k population) - NO traffic, NO public transportation NO pedestrian walkways!!

This is my save game when I reached 600k population using a perfect zoning that leads to no traffic (84-85%) in any point, combinated with a very good road design.

IMPORTANT:
- NO public transportation used (bus/train/subway/etc - people and cargo)
- NO pedestrian walkway built
- NO neighborhood delimitation to block heavy traffic in any place
- NO Traffic Manager mod rules implemented - only basic road designs

I have some mods installed. The objective of usem them is to have a better game experience, changing the engine in some poor areas, like:
- All people die with same age, which leads to mass deaths waves.
- Houses don't get filles up with people.
- Basic service vehicles travel long distances to provide the service, instead of prioritizing nearest ones.
- Low/no education employments don't fill the jobs even high educated workers are unemployed.
- Few options for roads.

So putting more people in the houses would cause more traffic, so that is even more challenging!

These are the mods used:
- Employ Overeducated Workers V2
- Fill The Houses
- Harmony 2.0.1
- Lifecycle Rebalance Revisited 1.5
- More Effective Transfer Manager
- Network Extensions 2
- Optimised Outside Connections
- Realistic Population Revisited 1.4.3

I also have Traffic Manager President Edition enabled but not used in this city.

The key to the perfect zoning is to make blocks of buildings containing all of the 4 types of zoning togheter: residential, commercial, industrial, offices.

Ok, now you are thinking I am crazy or newbie. Everybody knows that industries causes noise and pollution, causing people to get sick, and commercial causes noise.

But there is a secret of all these, well it is not a secret, it is just the game rules.

First of all, industries cause contamination until 8 squares of distance, so after that there is no problema in plancing residences! Try yourself!

So I place 4 squares area of industrial zone. After that I place 4 squares area of commercial zone, which don't have any problems with the pollution!

They still make noise, so after that I place 4 squares area of offices, which don't have problems with pollution either and also with noise. Also they serve to block the noise from industrial and commercial zones.

So finally on the center of the large block is the residential zone, which won't suffer with pollution nor noise! Yes, I don't have anyone sick in my town!

The perfect about this zoning is that most of the traffic will be contained inside the block. People from residences will work on offices, industries and commerces near their houses, don't need to take they highways to go to other locations (most of them). Good produced on industries are transported right next door to the commerces.

This secret lowers A LOT the traffic in the city. I know for sure, I have built lots of cities before this one, and had lots of problems when population was 10 times smaller! And using Traffic Manager mod trying to fix everything!

The other point much important also is the roads design. I designed medium-sized zoning blocks and built highways surrouding them, so there was not a huge city all together, which is so difficult to manage traffic all inside it.

These highways interconnect itselves with large interchanges. The entrance to the zoning blocks are made in the middle on them and not near or at the interchanges. And these entries and exits are not complex junctions, they are simples 1-lane highways that link only the block at the same side of the highway. The oposite highway links to the block of the other side. That makes the roads clearer and with much less colliding traffic. The important here is that the entry to the zoning is BEFORE the exit, so cars don't wait for the other.

The medium-sized zoning block is surrounded by 5-lane roads and inside the block only a regular 2-lane is enough. All the blocks are linked by these 5-lane roads tunnels, passing bellow the highways. So the vehicles don't need to take the highway just to drive to 1 or 2 blocks away, they take these local large roads. Also they are essential to vehicles that leaves the highway on the oposite block they wanted to go due to the highways design explained before, so they use these roads to go the oposite block.

And that concludes the summary of the most important points related to zoning and roads that make this city perfect!

Download the save game and check it out!!!