I was basing my observations on comparisons to other visits I have made to Rio in the past, but obviously you are a resident so accept that my own observations may have given a false impression. On the other hand, passing a queue of traffic at that time of morning, I would suggest may have been down to road maintenance or a traffic accident.

My journeys were made on Friday at 11am and Sunday at 4pm, The main difference seems to have been the use of the new tunnel linking Santos Dumont to the docks area.