I guess any progress like this is a good thing, but it might be too little, too late. I think long-distance truck transport as we know it today is on the way out. Railways are much more efficient, produce fewer emissions per unit of weight carried and have the potential of hugely reducing the strain that these huge transport trucks put on our road-based infrastructure. Heavy trucks are destroying the roads around here and make driving in traffic a life-threatening experience, so personally I can hardly wait. 
Don't think that will happen in the foreseeable future. There are too many advantages to truck transport to stop using it, althougth more fuel efficient truck engines will need to be developed. Even if you have extensive rail transit (which doesn't even exist today), trucks are still needed to move stuff from rail depots to final desinations.
The demise of the trucking industry is a long way off.