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北美铁路协会决定放弃传统的1:20锥形车轮踏面外形,这在减少轮轨磨耗的同时,还将节约大量燃料。今后的任务是优化钢轨的轧制外形,使轮轨表面更加匹配。
The North American Railroad Association decided to abandon the traditional 1:20 conical wheel tread profile, which will save a lot of fuel while reducing wheel and rail wear. The task for the future is to optimize the rolling profile of the rail and to make the surface of the wheel and rail more suitable.