Overview
Roads and vehicular traffic are a key part of the day-to-day lives of people. Monitoring the flow and congestion of vehicular traffic is essential for efficient road systems in cities; therefore traffic monitoring has received a significant amount of attention. In recent years, many advanced sensor techniques have been adopted to collect real-time traffic information, such as loop detectors, cameras, etc. These sensor techniques all bear their advantages and disadvantages; first the traffic information collected with inductive-loop detectors embedded in the roads and with video cameras, these fixed installations do not give any traffic information beyond the locations where they are installed and their coverage. Second, in case of large scale urban road network it is not a practical scheme to use fixed detectors to collect the traffic information on every link, because it will incur a huge financial cost in both the initial construction and the subsequent maintenance.
To this end, we considered a simulator in order to simulate the vehicular mobility on a road network. The eventual goal of this project is simulating mobility on road network from any arbitrary region of the world. Through the simulator, we can capture the characteristics of mobility on a road network without huge financial cost.
Issues
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Simple traffic simulator with real road networks
At first phase, we aim to build a simple road network simulator with arbitrary region of the world. In order to obtain the arbitrary road network, we use OpenStreetMap which provides the functionality of exporting GIS(Geographic Information System) data of an arbitrary region. For the simple traffic simulator, we use gt-mobisim. However, the input format of gt-mobisim (SVG – Scale Vector Graph) is different to the data type of openstreetmap (OSM XML – OpenStreetMap XML), and we convert the OSM file into SVG file as a proper input for gt-mobisim.
Through this simple traffic simulator, we successfully simulate the mobility of objects over arbitrary regions. The followings are web-demo version of simulating various region of the world. (In order to watch the web-demo, please set the security of java as medium.)
- Gwangju, South Korea - where Chonnam National University is located.
- Daejon, South Korea - where KAIST is located.
- Suncheon, South Korea
- Delhi, India
Publication
People
- Faculty : Kyungbaek Kim
- Current Graduate Students : Rajashree Sokasane
Contact
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Kyungbaek Kim
DNSLab, Dept. Electronics and Computer Engineering,
Chonnam National University
email: kyungbaekkim@jnu.ac.kr
phone: +82-62-530-3438