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The assessment index system of emergency maintenance guarantee capability at vehicle equipments of armed police force is set up and the principles are put forward. The weight of every index is determined by applying AHP method. Finally, depending on fuzzy mathematics, a comprehensive assessment model of emergency maintenance guarantee capability at vehicle equipments for armed police force is built...
Vehicular ad-hoc networks (VANETs) have a big potential to improve traffic conditions. However, they are exposed to security threats that influence their reliability because they use an open medium for communication. We propose a trust based security system used by drivers to receive only trustworthy information about traffic conditions. Trust indexes are computed for individual pieces of data referring...
Public traffic is required for the convenient travel, reducing traffic congestion and accidents, low-carbon, environmental protection, sustainable development, and traffic demand of giant sports and large business activities, etc. For public transport demand of the 16th Asian Games and the 2010 Asian Para Games held in Guangzhou in 2010, based on ACP approach, Parallel Public Transport Management...
In this paper, we propose a security protocol to detect sybil attacks for position based applications in privacy preserved vehicular ad hoc networks (VANETs). Vehicles in our protocol identify sybil attacks locally in a cooperative way by examining the rationality of vehicles' positions to their own neighbors. The attack detection utilizes the characteristics of communication and vehicles' GPS positions...
Vehicular ad-hoc networks (VANETs) have a great potential to improve road safety, traffic jams, fuel consumption, and to increase passenger convenience in vehicles. However, VANETs use an open medium for communication and, therefore, are exposed to security threats that influence their reliability. We propose a data-trust security model designed for VANETs based on social network theories. Drivers...
The safety grade of Long and Steep Downhill Roads (LSDRs) on mountainous expressway is determined on the basis of analysis of safety factors, and the safety evaluation index system and the weights are build. Based on the theory of grey clustering, the classic whitening weight function is improved, and a gray fixed weight-clustering evaluation model of LSDRS is established to evaluate the security...
Highway alignment design should make alignments continuous and keep the index balance in order to ensure the security and comfort of the vehicles traveling at a high speed. Alignment-index value of Highway in plain area usually relatively higher. The current standard is based on the method of design-speed from the theory of alignment design which the index is usually given a much looser value scope...
Being lack of the evaluation indexes system and evaluating method of domestic normal transit system's barrier-free service quality, there are not enough scientific principles for barrier-free planning, design, management and supervising of normal urban public transportation system. So, in this paper, an initial new evaluation indexes system of that mentioned above is set up, also, the definition and...
The quality of service is an important aspect of current social concern, and to meet the transport needs of teachers and students on campus is an important prerequisite for quality services. In the paper the evaluation index system of campus vehicle service quality was established based on AHP, and the Delphi method was used to determine the relative importance of individual index. The quality of...
There is all kinds of risk consisting in every logistic distribution link of product oil because of the bigger product oil distribution district and the more complex distribution goods, a wide variety, quantity, and so on. Any question in a single spoken of earlier link happened will affect accuracy ,security and timeliness of indicator. This paper constructs evaluation index system and evaluation...
With the rapid development of the increasing urban traffic demand, the road traffic congestion problems become serious matter. Traffic congestion not only increases the time of travel delay, but also wastes a lot of money. This paper introduces an urban traffic congestion dynamic predict method based on advanced fuzzy cluserting model. Moreover, the paper puts forward the warning measures based on...
The driver controlling model of car-following based on preview follower theory is advanced by analyzing the relation of direction controlling and velocity controlling on the following car and regarding the whole car-following course as preview-follow to the velocity of the leading car for n times. The model could describe the car-following behaviors more truly due to the safety decision index is the...
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