HOUSTON--(BUSINESS WIRE)--Jan. 19, 2006--Researched by Industrialinfo.com (Industrial Information Resources, Incorporated; Houston, Texas). Each fiscal year, light and commuter rail companies invest billions of dollars in massive expansions of their rail systems. For the most part, these expansions are geared to easing congestion and helping alleviate environmental concerns brought about by our nation's heavily over-traveled roads. On the flip side of those capital investments, these same light and commuter rail companies also spend hundreds of millions of dollars annually on the necessary infrastructure projects that keep these same rail systems operating.