As of 2011, GRA is one of the most important roads in Rome, and traffic reaches 160,000 vehicles per day, and maintenance costs are around 11 million euros per year.
GRA is one of the most important roads in Rome. This is as of 2011. Traffic reaches 160,000 vehicles per day. This is as of 2011. Maintenance costs are around 11 million euros per year. This is as of 2011.