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Traffic congestion has seriously hindered the healthy and sustainable development of economy and society. Many research have been done to address the issue. Intelligent Transportation System (ITS) is key to improve the performance of urban traffic. As one of the essential components of an ITS, green ITS navigation for people and freight is critical, its research must base on the accurate grasp of...
Nautical traffic simulation has been helpful to provide information of traffic details that can be contribute to provide information for the safety of ports and waterways. There are extensive simulations that try to mimic the ship traffic flow. However, none of the existing models describe the steering behavior of individual ship during the passage. This paper intends to introduce some steering behavior...
In order to promote maritime safety and reduce the loss of life and property, and achieve a safer navigation, cleaner oceans goal, this article assessed the ship traffic control safety from four aspects of the ship, namely “ships, navigation environment, people, management”. By researching the method of the safety evaluation, this article provides a valuable reference of the ship safety, and an effective...
This paper describes a well-designed and calibrated simulation model to solve the design of Ships' routeing system which provide useful insights about complex maritime transportation routes. Real data from shanghai port Vessel Traffic Services Center (VTS) are used as input for evaluating four traffic policies. The simulation model mainly focuses on the transit traffic in the channel. This study provides...
This paper describes a AIS-based model to assist the design of Ships' routeing system which provide useful insights about complex maritime transportation routes. The AIS analysis model mainly focuses on the transit traffic in the Channel. The AIS provides a method to analyze the vessel traffic density, meeting times and speed conditions in the Channels. An architecture of traffic stress model and...
The security of maritime traffic is a significant part of intelligent maritime traffic. It can reduce to ship manipulation and collision avoidance by macroscopic. Eighty percents of marine accident induce by human factor from research data. So some researches about computer evaluation system inducted to ship manipulation and collision avoidance to reduce the accident of human caused. Evaluation system...
Emergency service vehicles need safety and fluent paths to save time. In this paper, a centralized traffic control mechanism is proposed for the evacuation of vehicles that drive toward the dedicated path of the emergency vehicles (EV), e.g. ambulance, fire engines, police cars, etc, using the dedicated short range communications (DSRC) protocol. In our proposed mechanism, a centralized server is...
AIS (ship-borne automatic identification system) is a system that enables a ship to get information about encountered ships, such as their position, course, speed, name etc. automatically by VHF radio transmission. The system is expected to contribute the improvement of marine traffic control and safety. In some congested waterways overloaded/conflicted transmission of AIS is a potential problem in...
AIS (Automatic Identification System), a new type of radio navaid system at sea, has more and more been used on a ship to identify a target and improve the navigation safety at sea. AIS network has also been constructed at the main harbor in many countries to enhance the traffic safety and the management at the harbor. In the paper, AIS system was briefly described. It was studied on AIS network frame...
To investigate the safety of route flight in air traffic management, the collision risk is evaluated with the fuzzy sets theory. The new fuzzy evaluation method shows how the communication, navigation, surveillance, operation error, and traffic density influence the risk of collision in the parallel routes. The results demonstrate that fuzzy evaluation not only fulfill the safety assessment of separation...
Automatic identification system (AIS) is a system that enables ships to exchange information about ships and navigation, such as position, course, speed, name etc. automatically by VHF radio. The system is expected to contribute the improvement of marine traffic control and safety. In some congested waterways excessive transmission of AIS is a potential problem since the planning stage. In this study,...
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