Logical city planning is planning a city in such a way that provides the greatest overall loving experience to it’s inhabitants and passers-through.
This depends on the location of the city. Traffic prevention and green spaces are 2 things that need to be balanced. If a road that thousands travel on daily is being demolished to make way for a park that a few hundred people will maybe use, then it could be doing more harm than good.
This is ultimately a decision for communities to make, not us armchair planners, and it looks like they valued the park more.