The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Researching on gas discharging system on heading laneway in coal mine is extremely urgent since gas exploring accident takes loss immeasurable. In order to satisfy normal ventilation function and exceeding limited gas discharging function, a double model fuzzy control model using MATLAB language in the Simulink dynamic simulation tools is established. Each includes four-input and single-output. In...
In this paper, an intelligent transportation system for traffic accident processing is introduced. In the system, the artificial nervous networks are trained and build to retrieve the similar case from the typical case base. Bayesian networks are set up to analyze the key influence factors. In the analysis of cause of the accident, the system combines the conclusion based on CBR with the conclusion...
With the development of society, more and more emphasis put on community safety, Community Safety Manager plays an important positive role in maintaining social safety and stability and the promotion of social harmony. Therefore, How to implement the innovative model of community management system, strengthening grass-roots development and democratic self-government building and improve the city economic,...
The emergency decision system for dangerous chemicals burst leaking accident mainly consists of the dangerous chemicals query system, the decision-making system and the technical support system. The dangerous chemicals query system makes it easy for the users to understand the physical and chemical properties of the leakage chemicals. The decision-making system mainly screens the most suitable disposal...
Causal reasoning occupies a central position in human reasoning. In order to algorithmically consider causal relations, the relations must be placed into a representation that supports manipulation. The most widespread causal representation is directed acyclic graphs (DAGs). However, DAGs are severely limited in what portion of the every day world they can represent. Both possible causal relationships...
Effective traffic incident management requires a full understanding of the various corresponding properties to accurately estimate incident durations and to benefit decision makings of reducing the impact of non-recurring incident relevant congestions. This paper incorporates discrete choice theory in incident duration prediction. Multinomial Logit (MNL) model is employed to forecast the incident...
After the occurrence of grid emergency, fast and accurate evaluation of harmful levels of the incident and identification of disaster-level are the basis for activate contingency plans, reasonable allocation of resources and thus crisis management. Combined with the practical, the paper sets up grading evaluation index system of power emergency from the power grid losses, the user lossed and accident...
Coastal engineering planning (CEP) must deal with routine and non-routine hazardous conditions, particularly from cumulative hazards or from events with low probability but large consequences. We develop and exemplify a risk-based assessment to support coastal engineering planning, which is consistent with the precautionary principle, and provides scientific support for decision-making processes....
Expressway transportation is playing a more important roll in economic construction and social life. The expressway network status, including section flow and average speed, is important to the expressway management for analysis and decision making. Traditional ways of monitoring the road is using detectors which cost much to install and maintain. We propose speed constraint deducing model and similarity...
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...
There were many lacks in traditional risk control systems,for example,the systems were mostly based on static information from ground, thereby difficult to accurately distinguish the actual situation “down hole” in real time,they could only solve a sole factor risk control problem,and moreover,their information was not intuitively revealed and could not be shared. So this paper proposes a Visualization...
Safety topic as the same as many topics in transportation system, impresses many factors and is influenced by the other factors. In Iran the most attention was concentrated in executive engineering activities and it was conceived that with only physical adjustments, accident rate will be reduced. In recently years identification and remedying of Accident prone zones was considered by experts, but...
The eco-tourism route chosen by tourists is often different from the traditional tourist routes. Tourist destinations are often out-of-the-way place. If a travel safety incident occurs, it will bring much inconvenience to the rescue. At present, the application of risk assessment theory to analyze the problem has become a new trend in many fields. We present an eco-tourism safety risk assessment method...
Gridding Urban Management (GUM) seems to be a promising model for urban management in the 21st century. But GUM must be more than “infrastructure” - it needs to support effective management strategies. This paper outlines our initial attempt of examining urban problems within a GUM framework, and using an agent-based system to study strategy choices. We have developed a prototype system and modeled...
Through researching and analyzing regions and routes in police patrols, we use self-adaptive fuzzy C-means clustering algorithm, dijkstra algorithm and simulated annealing algorithm to develop decision support system for police patrols. We put self-adaptive strategy and fuzzy C-means (FCM) clustering algorithm together to form a self-adaptive FCM clustering algorithm. It is a good solution to the...
A comprehensive evaluation index system with a complex structure and an uneven index distribution is presented according to the characteristics of railway emergency plans. In view of the impacts and errors induced by the features of the comprehensive evaluation index system with the traditional analytic hierarchy process (AHP) method, the Improved AHP method is brought forward. The hierarchical structure...
Based on detailed analysis of maritime emergency plans, maritime emergency evaluation index system is established. The index system is characterized by the complicated hierarchy structure and multiple index attributes, the improved fuzzy synthesize evaluation method is used to evaluate the maritime emergency plans comprehensively. Qualitative evaluation and quantitative evaluation are combined, and...
Aimed at the problem that freeway operational department can't deal with emergency traffic accident appropriately, classes of traffic incident was proposed, combining with freeway traffic characteristics, main contents and support technology of freeway emergency decision system was set forth, including data warehouse design, model warehouse design, knowledge warehouse design, On-Line Analysis Processing,...
Through analyzing the characteristics of the distribution of the pollution sources in a drainage area, the legitimacy situation of the outlet of the pollution sources and the pollution traits of the drainage area, the distribution type of the accidental pollution sources is generalized and the corresponding target distribution function is established. Furthermore, based on the application of the feedback...
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...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.