Assessment of the influence of headwind speed and direction on the specific resistance when rolling a wagon from a shipment hump

The quality of the sorting process, the processing capacity of the station, and the safety of the rolling stock and transported goods depend on the design and current condition of the hump. Studying and assessing the influence of various factors on the specific resistance to the movement of cars from the air and wind will simplify the solution of individual problems in this area. The paper shows a calculation taking into account weather conditions to estimate the speed of railway cars. The presented values can be used as reference material when determining the design meteorological conditions for the design of hump humps.