The Return of Rail?

This Washington Monthly article discusses why that's a very good and plausible idea:

For years, state transportation officials have watched I-81 get pounded to pieces by tractor trailers, which are responsible for almost all non-weather-related highway wear and tear. To make matters worse, traffic is projected to rise by 67 percent in just the next ten years.

The conventional response to this problem would be simply to build more lanes. That’s what highway departments do. But at a cost of $11 billion, or $32 million per mile, Virginia cannot afford to do that without installing tolls, which might have to be set as high as 17 cents per mile for automobiles. When Virginia’s Department of Transportation proposed doing this early last year, truckers and ordinary Virginians alike set off a firestorm of protest. At the same time, just making I-81 wider without adding tolls would make its truck traffic problems worse, as still more trucks diverted from I-95 and other routes.

Looking for a way out of this dilemma, Virginia transportation officials have settled on an innovative solution: use state money to get freight off the highway and onto rails. As it happens, running parallel to I-81 through the Shenandoah Valley and across the Piedmont are two mostly single-track rail lines belonging to the Norfolk Southern Railroad. Known as the Crescent Corridor, these lines have seen a resurgence of trains carrying containers, just like most of the trucks on I-81 do. The problem is that the track needs upgrading and there are various choke points, so the Norfolk Southern cannot run trains fast enough to be time competitive with most of the trucks hurtling down I-81. Even before the recent financial meltdown, the railroad couldn’t generate enough interest from Wall Street investors to improve the line.