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伯灵顿北方铁路（BN）将试验用4300英制马力（3207kw）的SD75型机车担当芝加哥和奥罗拉（伊利诺斯州）之间的市郊列车运营，以确定这种机车能否提高列车效率、减少旅行时间和降低总的运营成本。BN铁路将对SD75型机车的性能与它目前用于担当市郊列车运营的3200英制马力（2386kw
Burlington Northern Railway (BN) will test a 4375-hp (3207kw) SD75 locomotive to operate as a suburban train between Chicago and Aurora (IL) to determine if the locomotive will improve train efficiency, Reduce travel time and reduce overall operating costs. The BN railway will compare the performance of the SD75 locomotive with the 3,200 horsepower it currently uses to serve suburban train operations (2386kw