The aim of the work is to improve the conditions for the separation of cuts on the switch of humps of medium power as a result of improving the design of their hump neck. Methodology. Studies of the design of the throat neck were carried out on the basis of a simulation of the rolling process of the calculated group of cuts on a hump of medium power using an iterative method of optimizing the braking modes of cuts. Results. It has been established that on medium-sized sorting hills in hump necks with one braking position on the downhill part of the hump, it is advisable to lengthen the switch zone located behind the braking position. This will increase the intervals between the cuts on the dividing switches and thereby improve the quality of the interval control of the speed of the cuts when the trains are disbanded. Scientific novelty. For the first time, the dependences of the intervals between the cuts on the dividing switches of the hillside bundles of the hump on the elongation of its switch zone located behind the brake position on the downhill of the hump were established. Practical significance. The results can be used to improve the design of humps and increase the efficiency of the sorting process on humps of medium power.