Roads with trees: any disadvantages?

Solution 1:

Parking space is not only a cosmetic.

Due to every CIM being simulated in one way or in another, when they go somewhere they take their car if its not close enough to their home.

They drive to nearest park space to the destination OR nearest Transportation option and then walk the remaining distance.

So having enough parking space is a great way to free up a lot of traffic,and having parking spaces on both side of the roads prevents the CIM from driving around and looking for a park space and adding to the traffic.

So in my opinion having the right balance between tree lined and normal roads is ideal.

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