The Hi-Lo Bi-Track System

The Hi-Lo Bi-Track System is an innovative technology that provides appropriate superelevations on curves to suit both high-speed passenger trains and low-speed freight trains. Adoption of the Hi-Lo Bi-Track System would provide the following benefits: (a) permit creation of high-speed lines for passenger trains over existing freight train rights-of-way without compromising performance of either train technology; (b) provide improvement in typical train trip times due to reduced need for speed reduction at curves; (c) provide savings in energy consumption due to less braking for curves and subsequent acceleration back to line speed; (d) provide better performance then "tilting trains" in reducing typical train trip times; (e) avoid high vertical and lateral track forces resulting from operation of "tilting trains"; and (f) applicable to high-speed mail and express freight trains in addition to high-speed passenger trains.