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Urban planning and design is based on traffic flow prediction of intersection to some extent in city, so the rationality of urban planning is influenced by accuracy of intersection prediction. This paper based on traditional Four Phases, considering road improvement near the intersection, predicted the impaction of transfer traffic volume on every run-in of intersection; according to the change of...
This article analyzes and summarizes adaptability of different road networks, combining with road network characteristics and road network layout feature. The factors that influence the selection of road network structural form are proposed and their limitations to the selection of road network structure form are also given. Considering these factors, this article provides reasonable and practical...
In order to analyze the effect of toll standard of regional freeway network on traffic flow assignment, this paper presents a network tolling model based on the optimization of traffic flow. In this model, system optimization and user optimization are considered together, cost of road users is minimized as the objective function, and the benefit of road builders and external benefit are treated as...
Urban traffic supply capacity and feature is much related with traffic infrastructure investment structure which can affect the traffic jam. The paper discussed the relation of traffic investment with traffic demand. And sum up the feature of traffic investment, the coordination models of investment. At last, based on Beijing traffic development program2012, we designed the forecasting plan of public...
This paper reviews the studies which have been performed in two-lane highway traffic safety research, and select random-effect negative binomial model to illustrate the traffic safety character of two-lane highway in plain area. More than 1380 kilometers(about 56 highways) two-lane highways in Beijing and Shandong province are investigated and the traffic safety data are collected, such as accident...
The principle of laser scanning ranging is applied in this paper. A reasonable algorithm is used to make laser sensor calibration. In this article, spatial coordinate system is established to analyze the measured data. Then we get the space coordinates of the scanning points and the data of pavement profile points in the laser scanning plane. Finally, the pavement roughness test result is obtained.
It is a brief introduction of the working principle of deicing salt and its applications at present in China. Utilizing an easy method for testing road coefficient of adhesion and taking the braking laws of China GB12676-1999 (Automotive braking system structure, performance and test methods) into account, a test program to test the coefficient of adhesion is developed. The data based on the experiment,...
Aim for the utilizing features of road crossing facilities in different cities, we select four cities in different regions, Shanghai, Chongqing, Xining and Harbin, to investigate the utilization of pedestrian crossing facilities. We choose usage rate of crosswalk, pedestrian violation rate of signalized intersection and saturation rate of pedestrian interchange as the evaluation index to describe...
Economic analysis, as the core content for project feasibility study and assessment, is an important basis for decision-making, whose role is to minimize risks and improve investment efficiency. Regional parking guidance system, as a subsystem of intelligent transportation system, can effectively alleviate the impact of uneven distribution of parking in the various parking lots on the service level...
Traffic accident causality analysis is an important aspect in the traffic safety research field. Based on data survey and statistical analysis, a Bayesian network for traffic accident causality analysis was developed. The structure and parameter of the Bayesian network was learnt with K2 algorithm and Bayesian parameter estimation respectively. With the Junction Tree algorithm, the effect of road...
With China's rapid economic development, urban traffic congestion is becoming increasingly obvious, following from that is not optimistic, the coming of the scarcity of urban road resources and traffic situation. Namely, the contradiction between travel the demand and the road service. At the present time, the simulation model at home and abroad does not really reflect the traffic flow from the emergence...
Travel Information Service (TIS) system is an important component in Intelligent Transportation System (ITS). By studying the relationship between the three factors in traffic which means travelers, vehicles and roads, presents a new classification method of TIS for public travel, and transforms each type of service into common representation using XML (eXtensible Markup Language), so that the services...
Expressway emergency rescue system is important for the expressway safety management.Through analyzing the traffic incident on expressway; this paper proposed a model based on respond time for the planning of expressway emergency rescue station. We analyze the characteristic of each expressway section by the historical statistics of traffic incidents, such as the number of incidents, casualties, property...
For the safety issues of night long-distance bus drivers, a test system that real-time continuously acquires vehicles driving parameter, traffic environmental images as well as ECG physiological state of drivers under night-time driving conditions is designed. The impact of continuous driving time, night-time conditions and others on the driver's heart electrical parameters and driving behaviors is...
In this paper, the night long-distance bus drivers were the study object, an integrated test system with long time real-time continuous acquisition of ECG characteristics of drivers, traffic parameters of vehicles and road environment image acquisition were designed.
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