Earlier quoted context omitted.
In the US there is lobbying. In Spain there is soccer. I have seen crazy things done just for soccer. The town I used to live in closed my street for a few weeks during one world cup. I wasn't able to use my garage during all that time. Also, somehow small towns always find money available for soccer related stuff (like building stadiums, events, etc.) but there is no money for improving healthcare or building parks.…
... Out of curiosity, why did they close the street? Was it to turn it into public walking space? (I'm trying to imagine a reason and coming up short...)
The 'main' roads end up getting backed up and then people naturally start drifting over to a bunch of side-roads to get to the destination. This then causes further traffic issues as the locations where side-roads intersect the main roads get backed up as people on the side roads try to merge into the main ones.
A solution ends up being closing some side roads to funnel the temporary traffic into the main thoroughfare while still allowing some local traffic through the non-closed side roads at the cost of some side roads being inaccessible.