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The frequent interaction between vehicles and jaywalking pedestrians at unsignalized locations is one of the main characteristics of traffic systems in some developing countries such as China, due to less disciplined behavior on urban streets. The inadequate understanding and improper management of the mixed traffic contribute much to traffic congestion and accidents. Existing micro-simulation tools...
Current traffic microsimulation tools are usually of limit use for evaluating the operations of pedestrian-involved systems, especially under unsignalized conditions (e.g. jaywalking and mid-block pedestrian crossings are not typically modeled), due to insufficient understandings of Pedestrian-Vehicle Interaction (PVI) behavior at such locations. This paper studies pedestrians' gap acceptance behavior...
This paper designed and implemented with Visual C++ a software video stream processing system to realize the real-time automatic vehicle speed detection and vehicle number counting. Based on geometric optics, we first present a simplified method to accurately map the coordinates in image domain into real-world domain. The second part is focused on the vehicle detection in digital image frames in video...
In order to improve the traffic data's completeness and comprehensiveness, this paper presents a traffic information fusion method to solve the problem of road sections without GPS sampling signals. A Kalman filter method is used to fuse the information of associated road sections with traffic information to acquire the speed information of those road sections without GPS sampling signals. The fusion...
This paper presents a new method based on digital image processing to realize the real-time automatic vehicle speed monitoring using video camera. Based on geometric optics, it first presents a simplified method to accurately map the coordinates in image domain into real-world domain. The second part is focused on the vehicle detection in digital image frames in video stream. Experiment shows it requires...
An application system is presented to implement the integration of microscopic traffic simulation and GIS, and a spatio-temporal data model is proposed as the solution for the integration. We mainly discuss the framework, spatio-temporal data model and dynamic map layer of integrative system. The representative microscopic traffic simulation system, MITSIM, is adopted as the model to analyze the simulation...
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