It's not light rail, but heavy rail. Richardson bought the original BNSF line from Belen to Bernalillo with option to buy the rest of the line to the Colorado border as needed! Amtrak and freight use it the rest of the time.
Like AMtrak will pay any return. (pppfffttt)
Is it 90 lb rail?
And now will NM have a railroad maintenance division in its DOT to keep this part of the system up to standard?
Alaska used to own a Railroad, but we sold it (sort of). Now it is run by a quasi-state agency/private organization. The orgaization doesn't pay taxes but does manage to have derailments like "real" railroads.