Chaotic traffic flow on 9 de Julio Avenue at golden hour

9 de julio avenue avenida 9 de julio buenos aires widest avenue in the world obelisco de buenos aires plaza de la republica argentina widest street south america argentine obelisk of buenos aires downtown traffic congestion city republic square el obelisco bus rapid transit avenue 9 metrobus buildings peak hour travel destination cityscape traffic peak traffic tourism rush hour travel exhaust emissions aerial street traffic flow thoroughfare golden hour vehicles architecture transport sightseeing busy greenhouse gases transportation historic monument commute drone lanes tourists chaotic global warming attraction