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Emergency vehicle prioritization is important to the efficiency of emergency services. To address certain challenges in emergency vehicle prioritization, we perform microscopic simulations of an intelligent transportation system, where emergency vehicles broadcast certain information about their routes to nearby vehicles and traffic lights. Our study shows that broadcasting the route information can...
As an important mode of urban transportation, taxi is of considerable significance for the commuters. The taxi service stations are important for the efficient operations of taxis. Current approaches for the location optimization of taxi service stations are not well aligned with the actual demand. The present study uses the taxi GPS data to identify and extract actual service needs. Then based on...
This paper proposes a successive approximation algorithm (SAA) for intelligent vehicle speed adaption (IVSA) based on energy dissipation. As vehicle dynamical system resembles a series of mass/spring/damper systems that are dissipative, i.e., the energy of the system decays to zero eventually, the problem of IVSA is transformed into dissipative control design based on energy storage function. In order...
The control strategy of torque-split between the shafts for electric vehicle has significant effects on the vehicle power performance. A dynamical model for studying the electric vehicle was established, taking account of not only the position of the accelerator pedal but also the wheel slip ratio. In this paper, a simulation platform of control system of torque-split between the shafts of this vehicle...
The 2 degrees of freedom linear dynamic model of 4-axle vehicle is built. The transfer functions from steering anglesd δi to the slip angle β and yaw rate γ are derived. Based on a dual- front-axle steering vehicle, the characteristic parameters, such as undamped natural circle frequency, decay factor, damping coefficient and damped natural circle frequency are calculated. The step steering input...
Today, video surveillance technology is playing a more and more important role in traffic detection. Vehicle's static properties are crucial information in examining criminal and traffic violations. With the development of Video Surveillance technology, it has been wildly used in the traffic monitoring. Therefore, there is a trend to use Video Surveillance to do intelligent analysis on vehicles. Now,...
Intelligent vehicle-highway system, through improving the intelligent control level of single vehicle and the ability of information interaction between vehicle and highway, can realize autonomous driving for intelligent vehicle and platoon driving, so as to solve the increasingly serious traffic problem. The intelligent control for single vehicle is the most important in the intelligent vehicle-highway...
A processing method of vehicle WIM signals is researched in this paper. According to the characteristics of vehicle weigh-in-motion signals, a self-adaptive filtering variable step size LMS algorithm based on neural network is proposed to replace the traditional self-adaptive filtering method. This method can filter out the noise in each band of WIM signal. In different circumstances, for different...
The transfer hub plays important role in urban public transit. The level of transfer capacity of transfer hub has great impact on the total operation state of urban transit system. Moreover, pedestrian facilities design principles and passenger management methods don't attach the widespread attentions comparing with other issue in many underground transfer hubs. At present, more pursuers have focused...
In order to improve the service level of urban public transportation and the efficiency of the vehicles resources, a new multi-objective synthesis optimization scheduling model is set up in this paper based on the maximum weight value of three satisfaction degree such as comfort inside buses, waiting time and bus company benefits, then it uses the improved genetic algorithm to seek the approximate...
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