Isambard Kingdom Brunel (1806-1859) had run the atmospheric railway commercially at southwest in England in the 19^<th> century. The railway was driven by pressure difference between front and rear of the piston in a pipeline laid between rails. The air in the pipeline in the front of piton was exhausted by vacuum pump at power stations. In order to re-apply a small size atmospheric railway system in Japan, as an eco-transportation usage, in this report, the authors tested running performance on steeper slope line and its mechanical relations between pipeline and piston using an atmospheric railway model.