Driving the I-10 corridor from Tucson to San Diego the other day, there were crews installing new track alongside existing track, working Northbound near Marana/Oro Valley. The new tracks have cement railroad ties instead of the traditional wooden ones. Are they replacing old track? Installing new double-tracking? Does the Amtrak line from TUS to LAX benefit from double-tracking?
Even if its not new track, I suppose maintenance is a good thing.
Even if its not new track, I suppose maintenance is a good thing.