[skookumchuck]

Inter-city mail should be by rail, which is far more environmental and much less costly. The only reason highways appear to be "cheaper" is the real costs are paid by other people (passenger cars).

[0xffff2]

Is it really cheaper? I would expect rail to be somewhat cheaper but an order of magnitude or more slower.

[skookumchuck]

Rail is cheaper in just about every dimension - fuel, track, track maintenance, labor, etc. The downside is it's slower.