The article presents the results of theoretical studies aimed at studying the issue of increasing the efficiency of a rotary snowplow. A list of possible indicators used as performance criteria is presented, characterizing both individual subsystems and a separate system as a whole, in the field of road, construction and municipal vehicles. As a criterion for the efficiency of the working equipment of a rotary snowplow, from the presented list, in this case, the power expended on transporting the snow mass was selected. Graphical dependences are presented that reflect the values of the forces of normal reaction of the side surface of the cutter of the feeder and graphical dependences of the maximum value of the normal reaction force of the supporting surface of the feeder on the size of the transported particles. Cartograms of the average values of the forces of normal reactions of the supporting surface and the side surface for particles with a characteristic size of 0.03 m are shown, built on the basis of the results of spatial averaging of the calculation results. The influence of the characteristic dimensions of transported particles on the performance indicators of the working equipment of a rotary snowplow is considered. The regularities established as a result of a comparative analysis of the averaged values over space and the average total values over time for both the supporting and side surfaces of the working equipment of a rotary snowplow are presented.

The position of the tracked chassis of a vehicle in motion often determines the accuracy of the creation of related structures during construction and road work. There are technical solutions for chassis positioning systems in several planes, based on laser leveling technologies. These systems implement the tracking principle of monitoring the position of the chassis, reacting to abnormal changes in position. Software implementation of position control based on its prediction during opera-tion is difficult to implement, since it must take into account the influence of many random factors on the movement of the machine (variability of movement resistance forces over time, etc.). This article examines the influence of variable resistance to ground movement on the position of tracked chassis in motion. Specific aspects are shown that characterize the change in the po-sition of the machine depending on the combination of laws of change in the coefficients of resistance to movement under each caterpillar. The examples show procedures for mathematical prediction of the physical and geometric characteristics of the movement of a tracked vehicle, the use of which in software algorithms of posi-tion control systems can help improve the accuracy of their operation.

Engineering methods for designing tracked mechanisms for moving mobile chassis of hoisting and transport, construction, road and other specialized machines are based on constant values of the coefficients of resistance to ground movement when choosing engine power and track parameters. In reality, the ground is not homogeneous, and the coefficient of resistance to movement at each moment in time is a random variable located in a certain interval depending on the type of ground. This article proposes a mathematical description of the process of joint movement of two tracked circuits within the same chassis with uneven ground resistance over time, which is reflected in the speed of movement of each circuit and leads to the effect of running tracks, which contributes to the occurrence of instantaneous turning moments. Depending on the type of selected law of change in the coefficient of resistance to ground movement over time, the results of decompensation of uneven movement of the tracks are shown, independent of the additional resistance arising from the lateral cut of the ground layer during instantaneous rotations of the chassis, characteristic of mechanisms with a separate drive of each track circuit.

The use of airmobile rope units for deployment or relocation to a new place of operation of mobile ropeways allows you to flexibly use the capabilities of modern types of cargo transport – air, road, rail and water. The article proposes and analyzes fourteen pos-sible alternative options for the technology of relocation of airmobile rope units, characterized by a different combination and alternation of the use of possible types of vehicles, taking into account the geographical and relief features of the region, technical, organizational and economic opportunities, as well as the territorial location of transport infrastructure (networks of roads or railways, waterways, the presence of airports or heli-copter sites, etc.). The principle of ensuring the universality of the overall dimensions of airmobile rope units in transport condition was also formulated and justified. Its observance in the design of airmobile rope units provides both flexibility in the development of technology for the delivery of mobile ropeway equipment to the place of their operation, and flexibility in the mantling or dismantling of the specified equipment at the operation place. Based on the analysis of the technical characteristics of universal transport containers ISO series 1 and universal aviation containers used in aircraft of domestic and foreign manufacturers, recommendations are formulated on the choice of overall dimensions of airmobile rope units in transport condition, which it is advisable to focus on when designing and assembling the main and related technological equipment of mobile ropeways.

Mobile ropeways based on airmobile rope units are a new constructive type of cargo and cargo-passenger ropeways for the rapid deployment of transport and overloading activities in hard-to-reach areas and high-altitude territories. The article provides a detailed analysis of the technical and organizational capabilities of the key method for delivering the necessary main and auxiliary technological equipment to the place of operation for these mobile ropeways — cargo transportation using transport and multi–purpose helicopters. Possible modifications of Russian helicopters are considered and based on the analysis of their technical characteristics (dimensions of cargo compartments, carrying capacity, practical range), recommendations for their use are made based on the required overall dimensions and weight of airmobile rope units. The necessity of using a method of transporting equipment mainly using an external load sling system is shown, the conditions for using transportation in the helicopter cargo hold are considered. Four possible technological variants of using a helicopter to carry out an operation for the delivery of airmobile rope units and related equipment to the place of the proposed deployment of a mobile ropeway, depending on the permissible distance between the points of loading and mantling of equipment, are proposed and analyzed.

The article discusses the state of the air transport industry in order to study the regional air transport system and identify new costeffective solutions for its development, based on the influence of various external factors — political, economic, social. An analysis of the project of the air transport holding «Novaport» was made; the key performance indicators of the creation of the holding system are analyzed, as well as the main advantages of the aviation holding in the conditions of the «turbulent» market environment. The system of state subsidizing of the regional air transport system was studied — the financial indicators of the state program: «Development of the transport system» are presented.A systematic analysis of the results of the activities of the regional air holding showed that during the period of turbulence in the external environment, subsidies do not provide sufficient assistance for the development of air transport enterprises, so the project of creating regional air transport holdings should be considered as a way of integrated and cost-effective development of regional air transportation. Also, the cooperation of the enterprises of the industry will create conditions for maintaining stability in the market, each of the members of the holding, which in modern conditions is extremely important for regional air transport systems.

Route planning is a complex problem in transportation, and one has to consider several factors starting from vehicle’s capacity and customer’s demand, allocation of drivers for shipment, distance, travel time. Transportation as a one of the key elements in logistics and two third logistics costs, needs study further. This paper studied the effect of queuing activity on travel time that could be happened at customer’s shop. This study collected the related data which were three trucks, twenty-four coordinates of customers-baby shops, capacities of trucks, and volume of goods. The related theories were multiple traveling salesman problem (mTSP) and queuing theory – single server and using the FIFO – First In First Out discipline (M/M/1), and exponential distributed random variable. The route started from the main warehouse at 08:30 from Tangerang, shipped the orders to the customers located in Jakarta,, lunch break 12:00 to 13:00 and return to the main warehouse before 17:30 by using normal speed. OptimoRoute as one of the suitable software for solving the vehicle routing problem was used to solve the sequence of shipment, order allocation for drivers and time needed; where On Line Simulator was used to solve the effect of queue. The results indicated that there was an additional time around fifteen minutes per stop to travel time; the more shops, the longer time was needed. This additional time may impact the overtime cost if the amount of travel time exceeds the working hour and queuing time must be considered for the next route planning by the planner.