The Mexican government has launched the second construction phase of its ambitious passenger rail program, a phase that will connect central Mexico via high-speed trains to Saltillo to the north and to the Pacific coast to the west, as well as advance connections between El Bajío cities such as Querétaro, San Luis Potosi and San Miguel de Allende. Speaking at the 25th National Meeting on Highway Engineering in Morelia, Michoacán, Efraín Descha…