Specifications include, but are not limited to: The first iteration of Indianapolis Union Station opened in 1853 and was the first known station in the world that brought multiple railroad companies and passenger services under one roof. The building was owned by the Indianapolis Union Railway Company, a consortium of several different railway companies (the Madison & Indianapolis, the Terre Haute & Richmond, and the Indianapolis & Bellefontaine). The Indianapolis Union Railway exists today as a terminal railroad and is owned and operated by CSX. Train traffic quickly outgrew available space within Union Station. By 1886, a new Union Station had been constructed on the site with twelve passenger tracks. In 1923, the City embarked on a public works effort to elevate the tracks through Downtown in an effort to relieve traffic blockages caused by stopped trains across streets. Around the same time, Indianapolis saw over 200 daily passenger trains to cities across the country.