Roadworks

What's with all the roadworks in Buenos Aires? Everywhere I look the streets and pavements are being dug up. Although, I also recall that around this time of year in London the same thing happens. Something to do with the end of the financial year and local authorities frantically using up their budgets. I wonder if it's the same story here.

Annoyingly when they dig up the pavement here they tend not to replace the floor slabs they just removed with like, but instead whack down concrete. The pavement outside my building was pristine until two days ago.