SUGAR LAND--January 11, 2016--Researched by Industrial Info Resources (Sugar Land, Texas)--Weakness in the energy and manufacturing sectors took its toll on U.S. rail traffic in 2015, but that didn't stop rail carriers from kicking off projects worth more than $4 billion, according to Industrial Info's database. Within this article: Details of railroad projects by CSX Corporation (NYSE:CSX), Berkshire Hathaway (NYSE:BRKA).