Anillo Periférico

{{short description|Highway in Mexico}}

{{For|the beltway in Puebla|Anillo Periférico Ecológico}}

Image:Anillo Periferico in San Jeronimo, DF, MX.jpg]]

Image:Croppedsegundopiso.jpg

File:16no13sábnubbúhoiglMerceddistrvialiglSKSmingitoriolunallena 025.jpg

The Anillo Periférico known by locals as el periférico (Spanish for peripheral ring) is the outer beltway of Mexico City.

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.Jorge Legorreta. "[http://www.jornada.unam.mx/2002/10/16/02an1cul.php?origen=cultura.html Viaducto y Periférico, creaciones urbanísticas de Carlos Contreras]". La Jornada, 16 October 2002.

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. 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").{{cite web|url=http://www.eluniversaledomex.mx/otros/nota21377.html|title=Las 7 carreteras más importantes del sexenio de Peña Nieto|website=El Universal – Estado de México|archive-url=https://web.archive.org/web/20160713062518/http://www.eluniversaledomex.mx/otros/nota21377.html|archive-date=13 July 2016|url-status=dead|accessdate=10 February 2017}} 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").{{Cite web |url=http://www.ohlmexico.com.mx/plantillas/concesionesVista.aspx?IDL=108&Fich=681 |title=Archived copy |access-date=2013-09-22 |archive-url=https://web.archive.org/web/20130927183736/http://www.ohlmexico.com.mx/plantillas/concesionesVista.aspx?IDL=108&Fich=681 |archive-date=2013-09-27 |url-status=dead }}{{cite web|url=http://www.obras.df.gob.mx/?p=2525|title=SOBSE - Secretaría de Obras y Servicios|accessdate=10 February 2017|archive-url=https://web.archive.org/web/20170211081447/http://www.obras.df.gob.mx/?p=2525|archive-date=11 February 2017|url-status=dead}} At San Jerónimo the second level intersects directly with a toll road to Santa Fe, the Supervía Poniente. 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").{{cite web|url=http://www.ausur.com.mx/index.php |title=Archived copy |accessdate=2013-09-22 |url-status=dead |archiveurl=https://web.archive.org/web/20130928035028/http://www.ausur.com.mx/index.php |archivedate=2013-09-28 }}