Street signage found in ground imagery suggests that 'Avenida' does extend to the other portions of the highway. Please refer to this image on Mapillary that supports these changes: 
https://www.mapillary.com/app/?lat=-34.615336432499994&lng=-58.429097194099995&z=19.54078939385358&focus=photo&dateFrom=2017-01-01&pKey=1287364536031612