The section, which began commercial service on June 2, 2008 (after three weeks of fare-free trial operation),[2] cost US$706 million to build, with the Mexican Federal Government contributing 55% of this investment.

However, inside Mexico City itself on the approach to Buenavista Station, a considerable amount of grade separation, including below-grade excavation and new bridges, was necessary due to high density and traffic congestion.

On August 24, 2005, Construcciones y Auxiliar de Ferrocarriles, S.A. (CAF) obtained a 30-year concession to supply rolling stock, build and operate the Tren Suburbano.

[9] As of January 31, 2010 according to the head of Comercialización y Administración de Riesgos del Ferrocarril Suburbano stated that Line 1 of the Suburban Railway of the Mexico City Metropolitan Area served an average of 88,000 passengers per day.

[22][23] The line follows the route of a previously proposed branch from Lechería to Jaltocan, and it will pass through the municipalities of Tultitlán, Tultepec, Nextlalpan and Zumpango.

[24] In the 2000s, authorities proposed extending the system to a length of 242 kilometres (150 mi),[25] in order to reduce Mexico City's heavy road traffic congestion and air pollution.