it's been especially benefic for the railroads like northern southern, csx and kansas cityson. >> it's one of our strategic and it has been for a number of years. we tried the growth of this particular segment in order to grow the company overall. >> reporter: rail has been taking market share from trucks that used to move freight exclusively over the road. that's because more can move by train and when energy prices are high it's much cheaper, more fuel efficient to ship this way for the majority oe haul. but crude oil has fallen diesel prices lower than six months ago. analysts say it makes the cost of trucking over a long distance look more traffic, especially in light of the congestion at the west coast parts where faster. business is growing fast with the industry's trade association forecasting another year of forward of 6% growth. as more of these containers move across america. for "nightly business report," i'm morgan brennan in kansas city missouri. >>> coming up what's hurting small business owners in many u.s. cities and how they're fighting bac >>> it's one of the biggest