In 1975 was devised by the "Instituto Ferrocarriles del Estado" (IFE) a "National Plan Ferrocarrilero" that began in Maracaibo and reached Barquisimeto-Puerto Cabello-Valencia-Caracas-Cua, following from Cua to Barcelona and Ciudad Bolivar-Ciudad Guayana. The company "Saprolate-Tranarg" made all aerial photographic surveys and the Plan was approved by the then President Luis Herrera Campins, but in the 1980s the Plan IFE was blocked for economic reasons after the devaluation of the Bolivar in 1983 and then was finally canceled with the Caracazo of 1989. Only the section Caracas-Cua was maintained as a budgeted project (and was made, being inaugurated in 2006 by President Hugo Chavez) .