How good is the quality of the roads in South American countries?

How good is the quality of the roads in South American countries?
Which countries in Asia have the most dangerous roads?
Which areas in Europe have the most dangerous roads?
Which cities in Europe have the worst traffic?
We looked at the roads in Europe, but how good is the quality of the roads in Asian countries?
How good is the quality of the roads in European countries?
Number of motor vehicles per 1,000 inhabitants. Motor Vehicles includes cars, vans, buses and trucks. Motorcycles and other two-wheeled vehicles are not included.