Mexico City - Queretaro (Mexico 57D) is the busiest highway in Mexico. Most all commercial traffic goes by this highway coming from north of Mexico and the US to Mexico City.
Around the area is where most industrial facilities, commerce and developments have been built over the last 40 years in the country. Recent improvements in security make this highway one of the best in the country, with 6 to 8 lanes, good pavement (some segments in concrete) and good signage following international standards similar to US interstates. The road climbs up to a small mountain pass at 2690 m above the sea level, near Calpulalpan. The highway is so dangerous because is the country busiest highway with an average of 3 accidents each day, in a stretch of 200km between both cities. Drivers get too confident of the highway, speeding up to 220 km/h (140 mhp) and law enforcement it’s not properly applied.
Road suggested by: Eblem Torres