An Altamont Pass segment ought to have been one of first things built. A faster 'Altamont Corridor Express' would have created a ~1-hour link between Stockton a

An Altamont Pass segment ought to have been one of first things built. A faster 'Altamont Corridor Express' would have created a ~1-hour link between Stockton and the Bay, integrating the corridor's economy further beyond its current role as an overlong exurban commute. It would've also provided for an alternate rail routing between Sacramento and the Bay that'd be competitive with the Capitol Corridor. After the initial push towards a 'Super ACE', Altamont lost in the planning to Pacheco Pass; this increased linearity and reduced distance in the SF-SJ-Fresno axis, but in my opinion it was the wrong move. Fresno's accession to the economic continuum of the Bay is far less likely than that of Stockton or Modesto.