[pstuart]

The problem is rights of way. Getting land is a lot more difficult than when the railroads first started and were given free land.

Where lines are constrained they can invest in parallel tracks and increase current capacity. Everybody could win in this way.

[bluGill]

The only free land railroads got was worthless land out west. Of course once the railroad was built the land became valuable. Out east they generally had to buy land