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Aimed at the problem that it is easy for buses to roll in the extreme-turn conditions, the paper finished a series of analysis. First, bus turning driving dynamics model was established based on the effect of suspension motion on roll angle. In the extreme-turn conditions Roll stability and critical roll angle threshold were analyzed, and formulas of roll angle prediction and roll angle threshold...
This paper analyzes and simulates the model of automotive pneumatic braking pipeline pressure response delay and build pressure response delay testing system based on dSPACE system to test the different diameter and length of nylon line pressure response delay. The influence of test data parameters on the pressure response delay has been analyzed, fitting the different pipe diameter calculation formula...
The rail transit is one kind of urban track traffic systems. The paper focused on the new built rail transit system, Rail Transit Line 1, in Zhuhai, China. The following three kinds of benefits are analyzed. First, the economic benefits, which include the passenger time-saving benefit and the land value-added benefit, have been studied. Second, the social benefits, which have been analyzed according...
In Vehicular Ad Hoc Networks (VANETs), moving vehicles are considered as mobile nodes in the network and they are connected to each other via wireless links when they are within the communication radius of each other. Efficient message delivery in VANETs is still a very challenging research issue. In this paper, a Q-learning based routing protocol (i.e., QGrid) is introduced to help to improve the...
Vehicular networks have been increasingly used for applications like road infrastructure monitoring and traffic jam detection, etc. Data forwarding is a well-known challenging problem in vehicular networks, which suffers from delay and error due to the frequent network disruption and fast topological change. The minimizations of the delivery delay and network cost are both central to data forwarding...
Using multiple robots to form artificial swarms and using methods of self-organization to carry out collective cooperation to fulfill complex tasks are hotspots in researches of robotic control. Artificial swarms with the advantages of distribution, flexibility, robustness, autonomy and so on, will be the main approach to accomplish the complex tasks, such as distributed wireless network, distributed...
Vehicular ad hoc network(VANET) is increasingly studied recently due to its promising benefits to the urban life. The roadside unit(RSU) is one of the most important components for VANET. An effective deployment of RSUs will enhance the efficiency of the data delivery in VANET. In this paper, we propose to address the RSU deployment problem by formulating it as a mobility clustering problem. We adopt...
This paper proposes a vehicle detection and traffic volume statistics algorithm Based on an improved single Gaussian model. This algorithm contains three major sections, which are moving target detection, shadows suppression and traffic volume count. Firstly, with an improved background initialization method, the paper detects the moving target by using the single Gaussian model. Then, a computational...
Monthly and seasonal variation characteristics of passenger volume of urban public transport can provide an important basis for the rational planning and operation of public transport. According to the passenger volume information of the public transport of Pingdingshan City, this paper, using Excel, calculates the monthly seasonal index, and then processes them with one-way analysis of variance in...
The current paper aims to study the correlation between pedestrian injuries and impact speed in the accidents involved minivan and sedan and the relationship of pedestrian head injuries and calculated physical parameters. The logistic regression models of the risks for pedestrian AIS 3+ injuries and fatalities were developed in terms of vehicle impact speed by analyzing the minivan-pedestrian and...
Vehicular ad hoc network (VANET) is an emerging new technology integrating ad hoc network, wireless LAN (WLAN) and cellular technology to achieve intelligent inter-vehicle communications and improve road traffic safety and efficiency. VANETs are distinguished from other kinds of ad hoc networks by their hybrid network architectures, node movement characteristics, and new application scenarios. Therefore,...
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