Journal of Transportation Systems Engineering and Information Technology

Preface of the Introduction of
Intelligent Transport Systems Engineering

ZHANG Guo-wu

2003, 3(4): 1-5 .

Abstract ( )

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The Introduction of Intelligent Transport Systems Engineering edited by Prof. Guowu Zhang is a technical composition published by the China Electronic Industry Publishing House in 2003. As the preface of the book, the article systematically introduces the definition and its content of Intelligent Transport System (ITS). It points out that the development of ITS is an absolute practice of System Engineering, analyzes the definition of the Intelligence with its generation and development, discusses the methodologies of System Engineering used in ITS. With the viewpoint of system engineering, author expatiates the state-of-art of ITS at world-wide level. A list of chapter titles has finally been offered at the end of the article

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Comparative Analysis to Highway
Construction Progress between China and Unite States

CEN Yan-ging, ZHANG Ruo-qi, DUAN Xin, NIE Yu-ren

2003, 3(4): 6-11 .

Abstract ( )

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Based on comparative method, this paper discusses generalities and characteristics of highway construction progress in China and the United States from the aspects of construction speed and investment scale, and points out that our highway construction has entered into a developing
stage of high speed since 1996. Through quantitative analysis, in the following 18 years, i.e.，from 2003 to 2020, China’s highway construction will develop at a high speed of annual growth of 7.1 million kilometers (including 2500一2600 kilometers expressway) in highway mileage, and the
annual capital input level of highway construction investment should remain at 2%～3% of the GDP among which, it should keep above 2.5% before 2010 and 2%～2.5% after 2010.

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Research on the Estimation for Effective Parking
Space of the Intelligentized Parking Guidance System

YANG Zhao-sheng, CHEN Xiao-dong

2003, 3(4): 12-15 .

Abstract ( )

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As one of the ITS’ important parts, the Intelligentized Parking Guidance Systems contributes much in the transportation management of the whole city. The system of this kind is in operation, but how to estimate the Effective Parking Space number in the future is a difficult problem. The authors spend a long time to look for the method, and give out the method to solve the problem.

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ITS Data Archiving Strategy Based-on Sampling Approach

YU Lei, QIAO Feng-xiang, XU LI, CHEN Xu-mei,GENG Yan-bin,WU Jia-qing,YUAN Zhen-zhou

2003, 3(4): 16-26 .

Abstract ( )

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This paper presents an optimization-based sampling approach for data arching. This approach intends to identify the best representative samples of the raw ITS data based on either sum squire error(SSE) or cross validation(CV) while minimize the required storage size. The proposed approach is tested in the case study of TransGuide of San Antonio, Texas. After the proposed sampling approach is applied in the case study, only one tenth of the original data are needed to be stored, while the resulting optimal samples contain the maximum information of the raw data, which are able to meet the potential uses of various transportation purposes.

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Feature Analysis and Process System Design
on Intelligent Transportation System Information

ZHANG Ru-hua, YANG Xiao-guang, YAN Hai

2003, 3(4): 27-33 .

Abstract ( )

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With the wide use and system integration of Intelligent Transportation System, traffic information and traffic states become more and more complexity and very difficult to deal with. This paper concentrates on the following three aspects:① analyses the features of ITS information, which include multi-source, heterogeneity and multi-levelness, and the dual-properties of traffic state, which include objectiveness, abstractness, certainty, continuity and subjectivity, concreteness, fuzziness, discreteness.② analyses the significance of information fusion and data mining and puts forward processing modes for ITS information process.③ puts forward the architecture for ITS information process, which integrates information fusion and data mining and could provide strong support for ITS applications.

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Vehicle Recognition Based on 1 -- SVM

SUN De- shan,WU Jin-pei

2003, 3(4): 34-37 .

Abstract ( )

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The Support Vector Machine (SVM) has shown excellent performance
in practice as a classification methodology, which were originally designed for binary classification. How to effectively extend SVM for multi-class classification is still an on-going research issue. Oftentimes multi-class classification problem have been treated as a series of binary problems in the SVM paradigm, but it is computationally more expensive to solve multi-class problems. In this paper, a new multi-class classification method is proposed based on one-class support vector machine (1-SVM), and then applies the method to vehicle recognition. The results of simulation experiments at vehicle database show that the proposed method is effective and feasible.

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Traffic Parameters Estimation on Single Loop Detection

LI Zhi-heng, WANG Zhen-qun

2003, 3(4): 38-44 .

Abstract ( )

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in the paper a detail traffic parameter estimation method on single loop detection is shown, speed is mainly focus, there are two methods that are used in the paper, using traffic simulation software-PARAMICS simulation data can show the result of estimation methods. The advanced traffic information system can be set up supported by these data.

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An Artificial Neural Network Model
for the Risk Analysis of the Bid Project

YANG Jun-qin

2003, 3(4): 45-47 .

Abstract ( )

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The Risk Analysis of the bid project is a important tache in
the prophase of bid decision. Based on the examination of the risk factors of the project, the paper establishes The Artificial Neural Network Model for the Risk Analysis. The soft system of the model is developed by MATLAB5.3.
This model provides a effective tool of risk analysis during the bid decision.

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Research on Simulation of
Inhabitant Trip Distribution Based on Electronic Energy

QU Zhao-wei, LIANG Chun-yan, WANG Dian-hai

2003, 3(4): 48-52 .

Abstract ( )

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In order to discovert he principle of inhabitant trip distribution based on inhabitant income. Base on inhabitant trip distribution model by simulating electron cloud, we apply electronic energy level theory to trip distribution theory and found inhabitant trip distribution model to describe
the relationship between inhabitant income and trip distance. The data of NPTS in American has been used to validate it. This model can be used to describe macro principle of development of city extension.

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Trafic Network Costs Analysis and Validation

FU Bai- bai, LIU Fa–sheng,FENG En-min

2003, 3(4): 53-57 .

Abstract ( )

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The relation between average speeds of vehicles observed by time and distance on traffic network is presented by invoking the property of a distribution variance. A parameterized validation approach for the BPR form volume delay function is applied to real situation. A kind of somewhat dual Braess’ paradox for the relation of network travel costs and demand is demonstrated

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The Study on the Relation between
Highway Construction Scale and Economy

LIU Yan-hui, JIA Yuan -hua

2003, 3(4): 58-60 .

Abstract ( )

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The highway construction has a close relation to area economy.How
to arrange highway construction in various areas to fit its economy is an
important problem. The paper tries to look for the quantitative relation of
the two by setting up the mathematics model in order to play a reference
to highway construction in various areas.

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Research on the Identification of the Study
Area Boundary of Large Commericial Dvelopments

ZHOU Wei,LI Wei-dong

2003, 3(4): 61-68 .

Abstract ( )

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The identification of the study area boundary is one of the fundamental steps of traffic impact analysis. By analyzing the features of the impact caused by large commercial developments, this paper puts forward a method to identify the study area boundary of large commercial developments based on commercial location by taking background traffic into conderation, which is very useful to instruct TIA for large commercial developments in different cities theoretically and practically.

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A New Urban Traffic Control Model

ZHOU Xi- zhao

2003, 3(4): 69-73 .

Abstract ( )

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Urban traffic control models are one of the basic tools for the analysis and design of transportation systems. The author develops a urban traffic control model and derives the optimality conditions of traffic control by optimization theory and Lagrangian function. Traffic control model is formulated as an equilivalent variational inequality where the variables are green time of phases of in teractions.

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Database Technique Applied to the Urban
Traffic Information Service System

LU Hua-pu, ZHU Yin

2003, 3(4): 74-78 .

Abstract ( )

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In this paper, mobile database technique and data warehouse technique are presented, especially applied to mobile information platform and the sharing information platform. Then, the conclusions have been drawn that the database technique is so important that it impenetrates almost
the whole areas of ITS. And we think that the ITS will achieve the new developments following the development of the database technique.

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A Comparison between Operation Control Systems
for High-Speed Maglev Transportation and
for Conventional Railway

WU Dan

2003, 3(4): 79-81 .

Abstract ( )

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The maglev train operation, with a linear motor having primary side on the ground, is controlled by computer on the ground. The operation control system is more complex and sophisticated in composition and
function, compared with the conventional railway operation system. The similarities and differences between them are detailedly analyzed. The principle of propulsion of maglev is also introduced.

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Delivery Consolidation and
Stock Replenishment in VMI System

YE Zhi-jian, DU Wen, WANG Qing-rong, ZHU Jian-mei

2003, 3(4): 82-88 .

Abstract ( )

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According to the characteristic that customer demand less
Quantity and more times, an optimal model which consolidated stock replenishment and delivery scheduling was modeled to compute upper-level inventory Q and delivery cycle T，as well as to minimize long-run average cost in VMI-systems. Solution of this model also was researched. As example show, it is appropriate to take delivery Consolidation strategy when and AD are large, whereas, direct delivery strategy is appropriate.

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Discussion on Characteristic of Current Converting
for Subway and DC Voltage Regulating Rate

YU Song-wei, SHI Feng-li

2003, 3(4): 89-93 .

Abstract ( )

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Based on introducing for certain characteristic of current converting for subway, DC voltage regulating rate is discussed along with analysis of its calculation method according to actual engineering situation, and the relation between the impedance of short circuit for transformer
rectifier unit and power supply system is mentioned in brief.

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