The Anillo Periférico (Spanish for ''peripheral ring'') is the outer

beltway A ring road (also known as circular road, beltline, beltway, circumferential (high)way, loop, bypass or orbital) is a road or a series of connected roads encircling a town, city, or country. The most common purpose of a ring road is to assist i ...

Mexico City Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley o ...

. The ''Periferico'' was originally planned by architect Carlos Contreras as early as 1925, together with other major roads such as the Viaducto Miguel Alemán. Some parts of the beltway were built to follow the bed of a river; the flow of the river was modified to flow through a pipe. The beltway gained major media attention when the then Mexico City mayor,

Andrés Manuel López Obrador Andrés Manuel López Obrador (; born 13 November 1953), also known by his initials AMLO, is a Mexican politician who has been serving as the 65th president of Mexico since 1 December 2018. He previously served as Head of Government of Mex ...

, started a project to turn a southern section of the ring into a two-story highway. The second level was finished in 2006 in the Federal District and in the State of Mexico in 2009. From Cuautitlán in the north (State of Mexico) to Naucalpan at the Federal District border the second floor operates as the Viaducto Elevado Bicentenario ("Bicentennial Elevated Viaduct"). From the old bullring (Toreo) at the north of the Federal District to San Jerónimo in the southwest the second level is called the Autopista Urbana Norte ("Northern Urban Tollway"). At San Jerónimo the second level intersects directly with a toll road to Santa Fe, the

Supervía Poniente The Supervía Poniente (literally "Western Super-Way") is a tollway linking the business district of Santa Fe, Mexico City with the Anillo Periférico beltway in southwestern Mexico City. The final portion opened on June 15, 2013. From Paseo de l ...

. From San Jerónimo to the intersection with the Calzada de Tlalpan in the south of the city, the second level is called the Autopista Urbana Sur ("Southern Urban Tollway").

References

Highways in Greater Mexico City Ring roads in Mexico Transportation in the State of Mexico {{Mexico-road-stub