Journal of Transportation Systems Engineering and Information Technology

Analysis on Some Issues of Comprehensive Transport System of China

ZHANG Guo-wu

2006, 6(2): 1-7 .

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The transport problem led by the development of China economy emphasizes the importance to build the national safe and efficient transport system. The paper introduces the main content of 52 famous professionals on the Council Seminar of China Transport System Engineering Society in Langfang of Hebei Province. It summarizes the important viewpoints on current transport focused problems with cause，transport administration system and long - term policy，national Eleven-Five transport schemed，regional economic and transport development，multi-modal cooperation operation and promotion of all professionals. A series of common sense and suggestions on integrated transport development toward building Harmonious society have been described in the paper.

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Cost Benefit and Uncertainty Analysis for ITS Investment Decisions

HU Ming-wei

2006, 6(2): 8-13 .

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The framework and processes of cost benefit analysis for intelligent transportation systems（ITS）investment project are established. The evaluation criteria computation，feasibility evaluation and the optimal scheme selection are discussed. The classification and estimation methods of costs and benefits are expatiated. The concept and methods of uncertainty analysis are proposed，with emphasis on sensitivity analysis and probability analysis. The implementation of the above methods is illustrated through the case study.

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An Improved Method of Determining Car-Following State

YANG Xiao-bao,ZHANG Ning

2006, 6(2): 14-17 .

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Aimed to solve the deficiency of determining car-following state，based on He’s method which uses the varying rule between the absolute value of relative speed difference and time headway，this paper presents a new method. This proposed method employs the varying rule between time headway and the relative coefficient of both leading and lag vehicles on the basis of analyzing the surveyed data. Compared with former methods，the improved Method considers more information and links with the fact closer. This research may have an important role in heightening the precision and reliability of microscopic traffic simulation.

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A WebGIS-based Supervision System for Intelligent Vehicles

GONG Zhen-yu,JIA Li-ming

2006, 6(2): 18-22 .

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This paper gives an overview of Internet Mapping and discusses its real usage for the supervision of vehicle. First，according to the services offered and to the techniques used，a classification of Internet Mapping is proposed . Then，based on the above discussion，this paper presents an Internet Mapping realized by the author， WebVehicleSuper，which in fact is a supervision system of vehicle based on GPS，GSM，and WebGIS through Internet. As a consequence of object-oriented programming and distributed architecture，WebVehicleSuper is very flexible and extensible，which is suitable for the developing tendency of WebGIS. It makes a nice tradeoff between performance and cost. Experimentally，this system can totally satisfy the needs of vehicle supervision with moderate system volume.

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On Priority Strategies of Urban Public Transport

GAO Kun,ZHANG Hai

2006, 6(2): 23-26 .

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The development of Public traffic is the most important method to solve the traffic jam，and bus priority is the most useful way to increase the public transport efficiency. The paper presents two ways of implementing bus priority on road infrastructure and signal of priority requisition and makes a deep analysis on them. This project is high up in the pictures of Bus Rapid Transit（BRT）of Beijing South Centre Road.

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A Review on Development of Urban Parking Guidance Information

ZHOU Zhi-yong,CHEN Jun,WANG Wei

2006, 6(2): 27-30 .

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In this paper，the developing trend of the process and application about urban parking guidance and information system（PGIS） is comprehensively concluded from the oversea cities including Europe，German， America and Japan and domestic cities including Beijing，Guangzhou and Nanjing. On the basis of the conclusion， the paper sums up the insufficiencies of PGIS at present. Aiming to make up for the insufficiencies，it assumes for setting up three-dimensional service network and respects the future development on the aspects of points，lines and surfaces. And then，Urban PGIS in future is conceived to carve up before-trips and in-trips two subsystems. Thus， it will supply parking guidance information from excessive channels and all-around orientations. In the end，brief structure model for urban PGIS in future is brought forward.

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Rapid Realization and Research of AR²W² - SFC Curve

SHI Zhi-min,GAO Hui,FU Bin,WANG Yan-guang

2006, 6(2): 31-37 .

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Global Information System（GIS）being used successfully in ITS is due to managing massive spatial geography data，reasonably organizing spatial data，and rapidly searching spatial objects. Building spatial indexing to spatial data is an important way of managing spatial data and advancing search speed. Based on the AR2W2 - SFC curve model，this paper puts forward an implemented method by Vertex-labeling and applies the model to the spatial indexing. After the experimental study，it is found that the performance of indexing of AR2W2 - SFC curve is better than that of Hilbert curve when the height of quad-tree is lowered and the curve is adopted as the spatial indexing of point objects.

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Data Structure Design and Actualization of GIS-based
Micr-Simulation System of Road Network

YANG Xiao-yi,WU Jian-ping,JIA Shun-ping

2006, 6(2): 38-41 .

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Aiming to resolve the problem of microscopic simulation model of road network，a modeling approach of network based on GIS is presented on this paper. According to this model，the data structure of micro-simulation network is implemented. First，the micro-simulation network model is built according to the characteristics of GIS and the demand of traffic microsimulation system，and then，the data structure of the road network was realied comes true according to the model and specific computer language.

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A Prospect Theory-Based Route Choice Model of Traveler
with Prior Information

ZHAO Lin,ZHANG Xing-chen

2006, 6(2): 42-46 .

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It’s very important to model traveler’s route choice behavior when analyzing the transportation system. This paper reviews the disadvantages of Expected Utility Theory which is the basis of most existing route choice models，and then introduces the‘Prospect theory’. Based on the framework of‘Prospect theory’，the paper analyzes the traveler’s learning process and route choice behavior on his own experience，and defines‘Reference point’of traveler’s decision . Finally，it puts forward the theorical model of traveler’s route choice only based his own experience.

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Discussion on the Parking Guidance Management
for Urban Commercial Center Area

MA Xu-hui

2006, 6(2): 47-50 .

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It’s an extrusive problem that parking difficulty in the commercial center area at present. Based on experience of practice，the paper analyses parking problem of the commercial center area，uses the advanced technology and experience in China and abroad for reference，gives out general structure of parking guidance system layout-setup of LED variable message sign and notice items of system information providing，then puts forward a set of design and control methods for parking guidance management. Moreover，with construction and application of parking guidance management system of WangFujing and XiDan in Beijing，shows visible application effect.

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A New Maximum-Flow Method of Urban Road Network Capacity

WU Hai-yan,GAO Jin-bo,LENG Chuan-cai

2006, 6(2): 51-56 .

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In this paper，urban road network capacity analysis theory and its application are introduced，based on the oversea and domestic road network capacity research results. Assumption term，model characteristics and applications limitations are involved . The maximum-flow algorithm in urban road network capacity analysis is introduced. The shortages of algorithm are put forward and an improved algorithm is developed in this paper，which will make the result more effective. The algorithm is in practice under Matlab. Finally，it is used in Zhongguancun’s Case Study and got well effect.

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A Grey-Theory-Based Evaluation with Application for
Urban Public Traffic Network

HU Qi-zhou,DENG Wei,ZHANG Wei-hua

2006, 6(2): 57-61 .

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This paper studies the evaluation of urban public traffic line network by the grey knowledge. On the basis of considering each factor of urban public traffic line network by using relevant knowledge of the grey system， the multilevel grey evaluation of urban public traffic line network is presented. This method combines the qualitative analysis with the quantitative analysis and then focused on the latter. It is applied to the practical evaluation of urban public traffic line network in one city and some positive results are obtained.

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Comparative Study on Life Cycle Assessment for
Alternative Vehicle Fuels

WEI Zhen-lin,SHEN Jin-sheng,HUANG Ai-ling

2006, 6(2): 62-65 .

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The method of Life Cycle Assessment（LCA）of vehicle energy is more systematic and comprehensive than Environmental Impact Assessment（EIA）that is generally only applied in the phase of energy consumption， but in comparison of vehicle alternative fuel，because of the particularity of operating environment of vehicles， which will lead to great difference of environmental damage by the same quantity of pollutant in different phases，the traditional LCA can’t assess the environmental effects of different vehicle alternative fuels exactly. Therefore， based on summarizing LCA of vehicle fuel，this paper puts forward weight coefficients in different phases calculated in terms of the marginal environmental damage cost，and improves the method of LCA of vehicle fuel，to make it adapted to appling in comparative analysis between different environmental impacts of different vehicle alternative fuels. Finally，a demonstrative analysis is carried out between fuel cell vehicle and gasoline vehicle.

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A Tree-Efficient Path Searching Algorithm Based on
Spatial Hierarchical Reasoning

HE Sheng-xue,FAN Bing-quan

2006, 6(2): 66-71 .

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The determination of efficient paths in the transportation network is a key technology of stochastic traffic assignment. Combining the orientation of searching the route and the strategy of spatial hierarchical reasoning， an orientated tree algorithm of efficient paths is proposed by simulating the tree’s growing . The application of the new algorithm in stochastic traffic assignment illustrates the new algorithm’s efficiency. This method becomes a powerful implement for it can be combined with stochastic traffic assignment mode.

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An Analytic-Network-Process （ANP）-based Evaluation
on Transport Guarantee Ability

ZHANG Liang-xin,XU Yan-shan,YANG Jun

2006, 6(2): 72-75 .

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Military transportation is the key point of logistics guarantee，and the ability of transportation guarantee is the foundation of military transportation. It is meaningful to evaluate the transport guarantee ability on the aspect of improving the military transport ability . It is a complex system composed by many factors which form a network and contact each other . After analyzing the factors，this paper investigates the relationship between them and the feed back influence between each hiberarchy . Based on them，the paper puts forward the analytic network process. Finally，the paper approves it by an example .

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On Construction of Optimal Decision Support System for
Tramp Shipping Market

LIU Jian-lin,SHI Xin

2006, 6(2): 76-82 .

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Shipping companies must consider themselves as the almightiness logistics provider or at least as members of provider of the almightiness logistics，insteading of the provider of sea transport services. This paper puts forward an theoretic frame of the optimization-based decision support system，which is consist of international shipping market analyses， optimize assign proper ship routing based on GIS，performance evaluating of the decision support system. This paper also bring forward a route of technology development，which will settle a steady base on theoretic for developing the system.

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A Review of Dynamic User-Optimal Variational Inequality
Traffic Assignment

LI Run-mei,TANG Shu-ming,WANG Fei-yue

2006, 6(2): 83-90 .

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This paper summarizes the researches on dynamic traffic assignment problems . The equivalent relation between the variational inequality model and the dynamic user-optimal condition is described . The necessity of the application of variational inequality method to dynamic traffic assignment is explained based on the description of the set of constraints and travel cost function . An overview of the current works in the dynamic traffic assignment using variational inequality method is presented . Existing problems and further researches of the variational inequality dynamic traffic assignment models are discussed .

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A Route Choice Method for International Multi-modal Transportation

SU Yin,LI Tie-zhu

2006, 6(2): 91-94 .

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Based on analyzing the factors in choosing routes of international muhimodal transportation，this paper regards transport fare，transport time and transport quality as the three most important factors in multimodal transportation．According to the influence degree of each factor when diferent cargoes are transported，the weighting of three factors are evaluated．On the basis of AHP，the paper uses the decision theory to determ ine which routes should be chosen for the diferent types of cargoes．

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A Forecasting Method for Urban Taxi Trafic Mode Split Rate

BIAN Yang,WANG Wei,LU Jian,MA Jun-lai

2006, 6(2): 95-100 .

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Considering both social and individual behaf，a multiple objective function model is developed，based on the area of the occupied road，travel cost and congestion degree of travelers chasing public traffic．The scale between taxi traffic mode and the public traffic mode is figured out from the mode1．which is used to calculate the taxi traffic mode split rate in the full-mode traffic structure．The results indicate that the method is simple and convenient；macroscopic policy and its microcosmic influence are interacted，It not only can forecast the taxi traffic mode split rate，but can provide theoretic support for the traffic policy decision-maker．

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Some Discussions on Integrated Urban Freight Trans portation

DU Cai-jun,DONG Bao-tian

2006, 6(2): 101-105 .

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Integrated freight transportation system is the tendency and imperious demand of the city．This system optimizes the transportation resources and integrates the travel demand management．Taking Zhengzhou as all example，the paper analyzes the characters of urban freight transport in detail．At the same time，the advantages and the efforts are presented from the transpo rtation pivots and the transportation routes．In addition，the paper presents measures of integrated transportation system in British．We can adopt some of them for our cities．

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Optimization of Urban Transit Structure Based
on Sustained Development

ZOU Sheng-yong

2006, 6(2): 106-110 .

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The paper brings forward the diferent transit structure values according to diferent cities with their land usage situation on the relationship between transit structure 、urban shape、people density and city scale，It analyzes the optimization of transpo rtation structure considering the environment analysis，transpo rtation consumption and demand-supply．It has been experiencing the structure changing period for our country and the mega polis and big cities need to develop their own tran sit system in the sustained developing principles．

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An Algorithm for Dynamic Core of
Transport Network with Applications

CHEN Tao,CHEN Sen-fa

2006, 6(2): 111-114 .

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Based on the core and coritivity of the non-directional connected network system ，this paper proposes the method of calculating the core and coritivity of the directional connected network system ，and applies it in calculating the dynamic core and coritivity of the dynamic flow network system ．This paper also sets forth that the traffic network system is the dynamic flow network system ，and it possesses the characteristics of generic dynamic flow network system．Finally，this paper presents the algorithm of calculating the dynamic core and coritivity of the traffic network system which can be used to solve the problem of calculation of the crossways and supervise traffic jam and congestion in cities．

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Discussion on Security in Logistics and Supply Chain

ZHEN Hong

2006, 6(2): 115-118 .

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On the base of analyzing the background of security issues in logistics and supply chain，this paper gives a concept of security issues in logistics and supply chain，puts it into categories and supplies some principles implementing security management of logistics and supply chain．The paper analyses and studies security management of container logistics，human security management in logistics chain and information system action to logistics security management．In this paper，some implementation situation of logistics and supply chain security management abroad are introduced．

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Game Analysis of the Partnership between Transportation
Agent and Industry

HAO Yu-long,MA Jun,ZHANG Zhong-yi

2006, 6(2): 119-123 .

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This paper points out the existing problems and analyses the reasons of emerging the problems from the point of view of principal-agent theory on the basis of analyzing special characters of partnership between transportation agent industry and transportation industry．It gives a parameterized principal-agent model under the symmetric and asymmetric information．It discusses the contract designing under the state of equilibria．It studies the problems of incentive and risk-sharing between them ，then brings forward and proves some propositions.

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Feasibility Analysis of Congestion Pricing in Beijing

ZHANG Lan,RONG Jian,CHEN Lai-rong,HE Yu-long

2006, 6(2): 124-128 .

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Traffic congestion is a natural outcome when the cities develope to a certain leve1．With the economic fast developing in our country，more and more，big-sized and medium-sized cities aye faced with serious traffic congestion，which is a fatal bottleneck of urban sustained development. Congestion pricing，an efective measure of traffic demand management attracts large-scale attentions as a result of more and more urban traffic congestion. Congestion pricing can implement traffic demand management by pricing mechanism，and control individual motor traffic demand in order to make urban traffic structure incline to public traffic and improve comprehensive eficiency of urban traffic．Based on the actuality of Beijing，considering the successful experience of London，this paper discusses the feasibility to actualize the congestion pricing in Beijing．

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Research on the Harmony Transportation in Harmony Society

LIU Xiao-guang,LI Xue-mei

2006, 6(2): 129-133 .

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Constructing harm ony society is one of the most important tasks in our country，even every province and city．As a“window”industry．traffic directly reflects the harmony development of all aspects of economy and society in city，thus，harmony transportation is significant for creating harmony society．The paper discusses content and tasks of creating the harmony transportation through analyzing the disharmony performance in Beijing transportation．

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The New Method of Trafic Sign Design in Street

YUAN Man-rong,LI Xue-ming, BI Xin,CHEN Shun-xiang

2006, 6(2): 134-136 .

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trafic signs are a kind of road language，which plays an impo rtant role in trafic supervision．But there are many problems on design，installation, and understanding，which make trafic signs not play a role in trafic supervision．This paper proposes four new ways of fingerpost design based on experience of traffic supervision so as to try to embody new idea of traffic supervision for everyone．

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