Anillo Periférico

The Periferico was originally planned by architect Carlos Contreras as early as 1925, together with other major roads such as the Viaducto Miguel Alemán.

[1] The beltway gained major media attention when the then Mexico City mayor, Andrés Manuel López Obrador, started a project to turn a southern section of the ring into a two-story highway.

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").

[2] 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").

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").