| Abstract [eng] |
Real time road traffic simulation methods are widely used in PC games, driving simulators, traffic control and other systems. By the detail of simulation level they are divided into microscopic, macroscopic and mesoscopic simulation. In this work microscopic simulation methods are used to repeat city road-traffic and research the differences of these methods. In research comparing microscopic simulation methods the time is measured for each vehicle while they are moving from point A to point B, or more accurately – while they are moving in circles and comming to the same point A. In road-traffic systems time difference is a very important factor. It influences all simulations and results. Depending on the selected simulation method – vehicles can move the same distance in different time. In order to determine how each simulation method influences traffic, a simulation tool has been developed. This tool uses linear, tunnel, and lane changing microscopic simulation methods. There are two groups of vehicles with different selected speed, drivers count, start line and direction selections. Simulations were performed with different methods. Tested methods showed approximately 30% difference in journey time. The fastest journey time was simulated by linear method and the slowest was the tunnel method with traffic lights. These results in master thesis are displayed in charts and tables in numerical terms and percentages. Real time road traffic analysis can be performed with a wide selection of simulation methods that have many parameters and extensive marketing opportunities. Since methods are different for specific areas, there is a need to combine them to get optimal traffic density, visual and physical results. |
