Development of the procedure for simulation modeling of interrelated transport processes on the main road network
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2019, Vol 5, Issue 3
Abstract
<p>The article deals with the interrelated processes of cargo transportation on the main road transport network. The problem of distribution of available vehicles was stated. The flows of incoming orders are stochastic, but have no features of the simplest. On the specified territory, the orders for long distance transportations appear and are repeated with random periodicity during a fixed period. Each order has its time window. Vehicles of one carrier are placed on a transport network in random order, according to the latest run performed. To execute the orders, motor-vehicle trains take the cargo at the location point, or in the absence of loads, move to the nearest transport point, where such orders appear. The typical situation, when even if there are enough vehicles, clients are denied transportation or vehicles have to stand idle or travel unloaded, was analyzed.</p>The simulation modeling procedure was developed. With the help of the random number generator, the set of coordinates of the points of departure and delivery of random order cargo and the points where vehicles are primarily located, as well as time windows, transportation volumes, and periodicity of orders are obtained. The service is provided according to one of three strategies: without a no-load run and waiting, with a no-load run, with full forecast of the upcoming process. The number of refusals due to the absence of transport or its being engaged was calculated. The parameters for several cycles were calculated. The order handling strategy is implemented based on the correction of decisions of subjects of transportation process at obtaining additional information about previous iterations. The decisions of subjects are limited to the carrier’s intentions. The procedure is applied in order to research the activity of the transport enterprise in the south-eastern territory of Ukraine during the agricultural cargo transportation during the harvest period. The indicators of the incoming flow service were found to have a fluctuating character. Three strategies were compared. The advantages and disadvantages of the application of no-load run, expectations, forecasting, and vehicles distribution by the volume of existing work were identified
Authors and Affiliations
Svitlana Sharai, Myroslav Oliskevych, Maksym Roi
Keywords
Related Articles
- EP ID EP667124
- DOI 10.15587/1729-4061.2019.179042
- Views 70
- Downloads 0
Study of anode processes during development of the new complex thiocarbamidecitrate copper plating electrolyte
<p>The kinetics of anodic reactions occurring on copper in thiocarbamide-citrate solutions was studied. Thiocarbamide forms stable copper (I) complexes of the cationic type with a coordination number equal to unity. Citr...
Development of the method for estimating serviceability of equipment for the transportation of compressed natural gas
<p>To ensure safe transportation of compressed natural gas, we proposed, based on the results of studies conducted, the algorithm for a method for the evaluation of combined type tanks. The method implies determining par...
Establishing the dependence of pollutant concentration on operational conditions at facilities of an oilandgas complex
<p>Environmental impact of gas burning parameters during operation of the gas pumping units of compressor stationswas studied. Simulation of the NO<sub>2</sub>, NO and CO dispersion zone at the excess air coefficients of...
Investigation of the work of the road construction at the sites by pipe drenes from materials of different origin
<p>The paper reports research into operation of road structures with tubular drains made from materials with different physical-mechanical properties, which makes it possible to identify basic factors that affect operati...
Development of methodical provisions regarding the substantiation of the combat structure of forces for activities in the airspace
<p>The determining factor for success during modern warfare is the struggle for supremacy in the air. The main task for a defending side is to prevent the enemy's superiority in the air. Various means of destruction are...