Table of Content

31 October 2011, Volume 45 Issue 10 Previous Issue    Next Issue

Physics

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Smoothed Particle Hydrodynamics Modeling of 2D Free Surface Flows HE Tao, ZHOU Dai 2011, 45 (10):  1425-1429.  Abstract ( 3571 )   Save  Smoothed particle hydrodynamics (SPH) was presented for 2D free surface flows based on the assumption that the fluid was treated as weakly compressible. The normalized quintic spline function was used as SPH kernel function. The flow pressure was obtained by the solution of equation of state. The threestep method equipped with variable time steps was employed in explicit time stepping. A link list algorithm served as an efficient nearest neighboring particles searching and dynamic particles were utilized to model solid walls. Several improvements were carried out to cure flaws of SPH. The obtained results agree well with the experimental data and prevail against the existing numerical data. References | Related Articles | Metrics

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Numerical Study on Driven Skewed Cavity with Big Aspect Ratio Using Unstructured Grid DING Liang, WANG Tong, GU Chuan-Gang 2011, 45 (10):  1430-1434.  Abstract ( 2808 )   Save The 2-D flow field of driven skewed cavity with big aspect ratio was numerically predicted using unstructured grids. Advancing front method was employed for the generation of unstructured grid. The smoothness and orthogonality of generated unstructured grid are improved by structured background grid, Laplacian filter operator and diagonal swap method. The program was first validated by steady lid-driven cavity problem with aspect ratio=1 and it is found that with only 1/6 grid number of reference, the simulated results are in good accordance with benchmark solutions. Then the driven skewed cavity with aspect ratio=2 and different skewed angles were solved. The results indicate that Re took more effect on center-line velocity distribution compared with the skewed angle. The main vortex structure in flow field varies little with just an extension of middle vortex scale. The results are meaningful for the design of similar structures in industry. References | Related Articles | Metrics

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Numerical Method for Supercavitating Flow over Disk Cavitator of Underwater Supersonic Projectile MENG Qing-Chang, ZHANG Zhi-Hong, LIU Ju-Bin, GU Jian-Nong 2011, 45 (10):  1435-1439.  Abstract ( 4170 )   Save To deal with the effect of compressibility on the supersonic supercavitating projectile, a finite volume method was presented based on the ideal compressible potential flow. A solution for the inverse problem of supercavitating flow was proposed using continuity equation and Tait state equation combining with Riabouchinsky closure model. A new iterative scheme about supercavity shape was designed according to the impenetrable condition. The compressibility effect on the supercavity shape and drag coefficient was analyzed on the basis of solving supersonic supercavitating flow over disk cavitator. Under the supersonic condition(Mach number is between 1.0 and 1.2), the fluid compressibility will make the supercavitation a slight asymmetry. The front section is narrower than the end of the section and the maximum supercavity section is slightly moved backward. The supercavity slenderness and pressure drag coefficient will raise with the increase of Mach number at constant cavitation number. The computational results are agree well with other result. References | Related Articles | Metrics

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Drag Reduction Mechanism of Hydrophobic Surface Based on Low Surface Energy Effect PAN Guang, HUANG Qiao-Gao, LIU Zhan-Yi, HU Hai-Bao, SONG Bao-Wei 2011, 45 (10):  1440-1443.  Abstract ( 3731 )   Save The drag characteristic of vehicle models with hydrophobic surface was investigated by water tunnel experiment for the application of hydrophobic surface on flow drag reduction. The drag characteristic curves and excess 30% experimental drag reduction effect were acquired. The results of surface energy speciality analysis indicate that the-C-Si hydrophobic fragments bring about low surface energy effect of hydrophobic surface, which is an efficient reason that hydrophobic surface possesses drag reduction effect. References | Related Articles | Metrics

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Applicability Analysis on Impact Models of Flexible Bodies Considering Damping ZOU Fan, LIU Jin-Yang, YU Zheng-Yue 2011, 45 (10):  1444-1449.  Abstract ( 3536 )   Save  Applicability of two different impact models considering damping in the process of normal contact-impact between a flexible beam and a rigid sphere was investigated, combining the theoretical and experimental methods. Based on Euler-Bernoulli beam assumption and geometric nonlinear theory, dynamic model of a planar flexible beam was established using absolute nodal coordinate formulation. Firstly, impact dynamic equations of flexible multi-body system are established using nonlinear spring-damper model, and then considering residual local deformation, dynamic equations of the system are established using elastic-plastic impact model, in which the impact can be divided into three periods: The elastic loading, the elastic-plastic loading, and the elastic unloading. Finally, a normal impact experiment between a flexible beam and a rigid sphere was carried out to verify that the elastic-plastic impact model is more suitable for impact analysis by comparison of the simulation and experiment results. References | Related Articles | Metrics

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A Technique of Reduction Pressure Fluctuation for Moving-Particle Semi-implicit Method SUN Xue-Yao-a, ZHANG Huai-Xin-a, b , PAN Xu-Jie-a 2011, 45 (10):  1450-1454.  Abstract ( 3830 )   Save  A common defect of movingparticle semi-implicit method and other mesh free method such as SPH is that the pressure fluctuation is obvious and hard to resolve. A new method was proposed to reduce pressure fluctuation and has good effect. Divergence-free condition representing fluid incompressible is used to calculate pressure smoothly, then time average is used to deal with the calculation. There are two kinds of cases being numerically simulated which are water collapse and ship roll sloshing. Comparing to the original MPS method, the result from the new method is real, so that the new method has good practicability and reliability. References | Related Articles | Metrics

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Research on Model Updating Method Based on Frequency Response Functions LI Wei-Ming, HONG Jia-Zhen 2011, 45 (10):  1455-1459.  Abstract ( 3627 )   Save This paper proposed a new model updating method based on frequency response functions which avoids the modal analysis process. This method takes the design parameters as the updating objects, moreover, it does not need matching the frequency response functions of the finite element model and the experiment and only a few measured data are needed to fulfill model updating. The model updating of a plane truss structure shows that the proposed method can get the perfect results under disturb of noise which proves the validity of the method. References | Related Articles | Metrics

General Industrial Technology

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Analysis on Buckling Modes of Simply Supported Delaminated Beams ZHU Bo, ZHOU Ding, LIU Wei-Qing 2011, 45 (10):  1460-1464.  Abstract ( 3579 )   Save Based on the twodimensional elasticity theory, the buckling modes of delaminated composite beams were studied. Firstly, according to the plane elasticity theory, the analytical solution of a piece of homogeneous beam is obtained, which exactly satisfies the simply-supported conditions of the beam at two ends. Then, using the point collocation technique, taking the series terms equal to the matching points, the critical buckling loads were obtained by means of the interface equations at every points as well as the upper and lower surface conditions of the beam. The displacement modes of the beam are given by substituting the critical loads back to the eigenvalue equations. The possible contact on the delaminated interfaces is considered in the present study. “Free” and “contact” modes are separately computed. According to the situations of the vertical displacements and normal stresses on the delaminated interfaces, the real buckling modes can be judged. The effects of the sizes and positions of the delaminations on the buckling modes were investigated. The present method is applicable not only to the slender beams, but also to the thick beams. And the contact problem was also well solved. References | Related Articles | Metrics

Physics

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A Thermal-Viscoplastic Endochronic Constitutive Model for PC/ABS Alloys LU Jia-Bao, ZHAO She-Xu 2011, 45 (10):  1465-1468.  Abstract ( 4496 )   Save Focusing on the temperaturedependence, the ratedependence and the strain hardening and/or softening behaviors of PC/ABS alloys under compression impact, this paper presented a rational internal time variable including the ABS toughening mechanism and developed a thermalviscoplastic endochronic constitutive model. The model is used to simulate the true stressstrain relationships of PC/ABS alloys at 20°C and 70°C and at strain rates of 8.0×102 ,2.7×103 ,1.0×104  s-1. The validity of the model was verified through comparing the simulations with the experimental data in the reference. References | Related Articles | Metrics

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Investigation on Rigid-Flexible Coupling Dynamics for Elasto-Plastic Beam with Large Deformation SHI Wang, LIU Jin-Yang 2011, 45 (10):  1469-1474.  Abstract ( 3514 )   Save Rigid-flexible coupling dynamic performance of an elastoplastic beam with large deformation was investigated. Based on nonlinear constitutive relation and nonlinear strain-displacement relationship, and using exact expression of curvature, dynamics variational equations for an elasto-plastic beam with large deformation were established using virtual work principle and absolute nodal coordinate formulation. Finite element method was used for discretization, and then rigid-flexible coupling dynamic equations were established. The simulations of a single pendulum under gravity show that elasto-plastic strain leads to the increase of the absolute value of the average transverse deformation and the decrease of transverse vibration amplitude. Furthermore, the comparison of the present nonlinear formulation with oneorder approximate dynamic model based on the theory of small deformation shows that the present result is stable for large deformation problem. References | Related Articles | Metrics

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Buckling of Rectangular Delamination Bridged by Fibers DI San-Dong, ZHANG Yang, LI Si-Ping 2011, 45 (10):  1475-1478.  Abstract ( 3263 )   Save The problem of buckling of delamination stitched with fiberbridge in 3D composites was solved by FEA. Linear springs of tensiononly or compressiononly distributed on the nodes of delamination cells are used to simulate the fibers and substrate respectively. The problem of eigenvalue buckling is transformed into the problem of geometric nonlinearities with an initial imperfection and solved by FEA of incremental nonlinear structural analysis. The results show that there are period contact points (districts) between delamination and substrate. And as the elastic coefficient of the fiber bridge increases, the critical buckling loads may also increase. The relation of the characteristic length and fiberbridge is expressed by mathematical formula. References | Related Articles | Metrics

Ocean Engineering

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Prediction on Vertical Current Profiles and Flow Characteristics of Current Generation System in Deepwater Offshore Basin SHAN Tie-Bing, YANG Jian-Min, 吕Hai-Ning 2011, 45 (10):  1479-1484.  Abstract ( 2785 )   Save Time domain method was used to simulate deepwater current generation system by solving N-S equation and k -ω turbulent model. Three dimensional model is created and calculated in order to investigate the distribution of vertical profile velocity in the test area, disclose the fluid characteristics of the current generation system. Multi-block structural grids are used to create domain meshes. Non-matching grids are created between culverts and deepwater basin which connect with interface method. The numerical result and full-scale measurement data fit a bit well through comparison, indicating CFD method is available in simulating Current generation system. Flow field is uniform and constant in test area, the distribution of vertical profile velocity meets test need, which indicates the performance of current generation system is pretty good. In addition, the flow distributions around containers, inflow and outflow galleries, turning vanes etc are also predicted by CFD methods. The results provide an important reference for further research on flow characteristic of current generation system, effectively adjusting the current velocities, increasing efficiency of current generation system and model test precision with current. References | Related Articles | Metrics

Physics

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Analysis of Interface Macrostructure of Thin Coating Material and Its Related Elastic Mechanical Behavior Based on AFM LIU Chang, XU Jin-Quan, MENG Xiang-Qi, LI Chen 2011, 45 (10):  1485-1488.  Abstract ( 3584 )   Save An elastic modulus test method of nano-materials was proposed based on atomic force microscopy (AFM). AFM was also used as a tool to observe the interface microstructure of a thin coating material and a quantitative analysis of the elastic deformation was made as a result of the presence of interface phase. The research results show that the sample here has flexible interface. The microstructure distribution of the interface phase is classified as grain-boundary nano-phase, and this kind of microstructure helps to alleviate and prevent cracks, thus increasing the carrying capacity of nano coating materials. The focus is to explore how the interface microstructures influence the coating material elastic deformation.   References | Related Articles | Metrics

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Effect of Small Scale on the Healing History of a Void in Stressed Grain YANG Shuai, LIU Ying, WANG Xi 2011, 45 (10):  1489-1492.  Abstract ( 2955 )   Save Based on a nonlocal elastic theory, an analytical method was presented to investigate the effects of small scale parameter on the shrinkage rate and the healing time history of a void in stressed grain. The example calculation shows that the effects of the small scale parameter on the shrinkage rate of a void in stressed grain gradually increase as the size of void decreases， and the void in grain is not eliminated only through lattice diffusion due to the small scale effect. The result gives a reference to reveal the selfhealing mechanism of the damage defects in stressed materials subjected to hydrostatic pressures. Key words： References | Related Articles | Metrics

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Analysis on Performance of Large Diameter Concrete Jacking Pipe LEI Han, CHEN Jin-jian, WANG Jian-hua, ZHU Xiong 2011, 45 (10):  1493-1497.  doi: 10.16183/j.cnki.jsjtu.2011.10.015 Abstract ( 4560 )   HTML ( 237 )   PDF (986KB) ( 759 )   Save The load model and its design method of a pipe are to be improved. Based on the South Line project of sewage treatment in Shanghai, the performance of inner diameter of 4 m jacking pipe was studied by numerical simulation. The variation of contact pressure between pipe and soil during construction was analyzed, and the influence of covering soil depth was then discussed. The differences of the load model from "the technical specification for pipe jacking of water supply and sewerage engineering" were researched, and the differences of the internal forces were compared. The results show that soil arch effect is strengthened with increasing of cover soil depth, while the distribution of contact pressure is more uniform than the codes. Therefore, the active earth pressure is conservative to calculate lateral pressure, and the subgrade reaction could be also more uniformed. The bending moment of pipe will decrease while the axis force increase if the load model is improved, which would optimize the design method of pipe. Figures and Tables | References | Related Articles | Metrics

Architechural Science

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Analytical Fitting Method of Loading-Displacement Curve for Upper PileSegment under O-Cell Pile Testing XI Xiao-Zhou, CHEN Long-Zhu 2011, 45 (10):  1498-1503.  Abstract ( 3456 )   Save A set of analytical equations of the loadingdisplacement curve of upper pile segment for the O-cell pile testing (OPT) method were established by using load transfer method. The lateral soil of pile shaft was simulated with a tri-linear load-transfer function and the gravity of pile shaft was taken into account. Also, the method to determine parameters for the pile-soil system with OPT data was mentioned. The theoretical results were compared with engineering cases from literatures. The method could be used as a theory guide to determine the frictional force at the pile-soil interface and furthermore to obtain the loading-displacement curve of traditional loading test with OPT data.   References | Related Articles | Metrics

Automation Technique, Computer Technology

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Cascade Constrained Model Predictive Control for Power Plant Superheated Steam Temperature System FENG Jian-Miao, LI Shao-Yuan 2011, 45 (10):  1504-1508.  Abstract ( 3817 )   Save Power plant superheated steam temperature system is characterized by large inertia and large lag. Usually spray system is applied to form a cascade control system and cascade PID scheme is usually employed to control superheated steam temperature. The spray valve is subject to physical constraints so that actuator saturation happens because of the set point computed by the outer loop controller. The method of cascade model predictive control was applied. Constrained model predictive control(CMPC) was used to handle constraints and obtain optimal solution with system satisfying the corresponding constraints. In addition, simulation of superheated steam system was realized. References | Related Articles | Metrics

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Using Improved Weighted Parabolic Interpolation and Contourlet Transformation to Zoom Images for Super-resolution CAI Nian, ZHANG Hai-Yuan, ZHANG Nan 2011, 45 (10):  1509-1515.  Abstract ( 3681 )   Save  In order to preserve the basic information of images and to improve their visual effect and space resolution, a novel image zooming algorithm was proposed by using improved weighted parabolic interpolation and Contourlet transformation. The proposed algorithm incorporates the erroramended part into the weighted parabolic interpolation algorithm. Directions of the interpolation points are determined by the Sobel operator, then we get a preliminary zoomed image. Highfrequency components are got by a Contourlet transformation, and lowfrequency components are replaced by the enhanced amplitude of the original image. A highresolution image is achieved by inverse Contourlet transformation. The experimental results indicate that, compared with traditional image zooming algorithms, this algorithm can get clearer and sharper edges due to considerations of global pixels correlation of the original image. References | Related Articles | Metrics

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Hyperspectral Image Classification by Genetic Relevance Vector Machine DONG Chao-1, 2 , TIAN Lian-Fang-1, ZHAO Hui-Jie-2 2011, 45 (10):  1516-1520.  Abstract ( 3700 )   Save The adjacent bands of hyperspectral image are highly correlated. It is not optimum to classify the hyperspectral image in the high dimensional space. In addition, optimizing the parameter of classifier by the cross validation method is not a trivial task. Aiming at the two targets, the classification of the hyperspectral image with genetic relevance vector machine (GA-RVM) was proposed. GARVM searches the best parameter and feature space for relevance vector machine (RVM), to reduce the redundant information and simplify the parameter optimization procedure. GA-RVM was evaluated by several experiments. Nearly 50% of the bands are eliminated during the optimization, leading to a 3% increase in the overall accuracy. The improvements are obvious for the hard-to-separate classes. Two kinds of soybeans that have the most misclassifications acquire an 8% improvement in accuracy. References | Related Articles | Metrics

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An Adaptive and Asynchronous MAC Protocol for Wireless Sensor Networks CHEN De-Fu, TAO Zheng-Su, ZHU Jian-Ping 2011, 45 (10):  1521-1525.  Abstract ( 3280 )   Save To improve network performance in dynamic traffic condition, an adaptive and asynchronous MAC protocol called AX-MAC was proposed. Based on preamble sampling technique, AX-MAC halves the length of wakeup preamble by employing some early ACK listening periods intercepted into strobed preambles. It also allows nodes to adjust their polling intervals according to the traffic conditions quickly and accurately by employing a two-parameters-based traffic determining mechanism. A model based on Markov chain is set up to analyze the influence of these two parameters. The simulations illustrate that AX-MAC can significantly reduce network latency on dynamic traffic conditions. Moreover, it also provides an optimal energy-latency trade-off by selecting proper parameters couples carefully. References | Related Articles | Metrics

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Improved Particle Filter Based on Genetic Algorithm YANG Ning-1, QIAN Feng-2a, ZHU Rui-2b 2011, 45 (10):  1526-1530.  Abstract ( 5180 )   Save  Considering particle number and particle quality have major influence on degeneracy phenomenon, a set of particles was chosen from a lot of initial sample particles using genetic algorithm, and kept the similarity and randominess, means and covariance as the initial sample particles. This method is used in a land vehicle navigation system, and compared with the tradition particle filter with the same amount of initial particles. The location precision, the degeneracy times and calculation time are used as the calibrating performances of the algorithms. The results prove that the initial particles quality is improved, the particle degeneracy phenomenon reduced and the system location precision improved. References | Related Articles | Metrics

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A Content Level Watermarking Scheme for H.264/AVC Video Authentication in VLC Domain LIN Zhi-Gao-a, SUN Tan-Feng-a, b , JIANG Xing-Hao-a, b 2011, 45 (10):  1531-1535.  Abstract ( 3269 )   Save For low bit-rate H.264/AVC video, this paper proposed a semi-fragile content authentication algorithm in VLC domain. Utilizing the intra prediction mode and coded block pattern in VLC domain, the algorithm chooses those macro-blocks. The signature is extracted according to the relationship between the energies of quantized low-frequency coefficients of submacroblocks from these macro-blocks, embedded by modifying the trailing coefficients. The experimental results show that this algorithm performs well in visual quality impact, keeps the bitrate basically unchanged and enhances the watermark capacity. By verifying the extracted signature, the algorithm can efficiently detect and locate the tampering on the video with high real-time.   References | Related Articles | Metrics

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Complex Relationships of Web Social Cluster Modeling Based on Supernetwork ZHANG Zhi-Yuan-a, LI Jian-Hua-b, CHEN Xiu-Zhen-a, LI Sheng-Hong-b 2011, 45 (10):  1536-1541.  Abstract ( 3206 )   Save  Existing methods are almost based on the single factor in characterizing the relationship within the cluster which cannot truly reflect the actual Web cluster’s structure. Aiming at the problem this paper put forward a supernetwork model to characterize the implicit relationship of Web entities corresponding to their interests. Recombining with dominant social relationships the paper constructed a more realistic multidimensional relationship model to characterize the Web cluster relations. Algorithm and experiments were given to illustrate the model’s effectiveness. The model not only characterizes a more realistic and precise network structures, but also allows detecting network hotspot information which leads a better understanding of public opinion to pave the way to effective analysis on network public opinion. References | Related Articles | Metrics

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A Video Shot Segmentation Algorithm Based on Dual-detection Model CHAO Juan-1, SUN Tan-Feng-1, 2 , JIANG Xing-Hao-1, 2 2011, 45 (10):  1542-1546.  Abstract ( 4362 )   Save Video shot segmentation is the fundamental work of content-based video retrieval. An adaptive shot segmentation scheme based on the dual-detection model was proposed. In the pre-detection round, the uneven blocking mechanism based on human visual features is presented and applied to adaptive binary search (ABS) method in moving window to detect shot boundaries. In the re-detection round the scale invariant feature transform (SIFT) algorithm will match the boundary frames and exclude false detections. The experiments indicate that this algorithm performs well on both abrupt and gradual shot boundary. References | Related Articles | Metrics

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Blind Detection of Splicing Image Based on Gray Level Co-occurrence Matrix of Image DCT Domain CHEN Gu-Chun-a, SU Bo-b, WANG Shi-Lin-b, LI Sheng-Hong-a 2011, 45 (10):  1547-1551.  Abstract ( 4311 )   Save Through analysis on the characteristic of image splicing，a new image splicing blind detection approach was proposed. It extracts the gray level cooccurrence matrix（GLCM）based on the thresholded DCT coefficients of the image. The gray level cooccurrence matrixes along the four directions serve as feature vector for image splicing detection. Support vector machine（SVM）is utilized as the classifier in the proposed method. The experimental results indicate that this new scheme can achieve the accuracy of 91.2% and 98.5% on gray image dataset of Columbia University and color image dataset of Chinese academy of sciences (CAS) respectively. References | Related Articles | Metrics

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Visual Measurement System of the Pitch Length of Large Scale Mooring Chains’ Five Neighboring Links HU Wen-1, HU Chun-2, WANG Shi-Gang-1 2011, 45 (10):  1552-1556.  Abstract ( 3157 )   Save A visual measurement method based on the baseline length of cameras was presented to measure the pitch length of five neighboring links of large scale three dimensional mooring chains with complex shape. The task is separated into two subtasks, including calibrating the baseline length of neighboring cameras and the horizontal distances between the five neighboring links’ edges and the principal point of the corresponding camera. The edge detection method and visual measurement method of five neighboring links were proposed. The experimental results show that the system can detect the edges precisely, and compute the pitch length with the relative error less than 0.2%, satisfying application requirements. References | Related Articles | Metrics

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Seismic Response Analysis of Connectional Passage in Twin-Tunnel Based on Parallel Computing WANG Jian-Wei, JIN Xian-Long, WANG Xin, ZHANG Wei-Wei 2011, 45 (10):  1557-1561.  Abstract ( 3768 )   Save  Considering the dynamic tunnelsoil interaction, a large-scale three dimensional finite model of tunnelconnectional passages-soil was established for a twin-tunnel in Shanghai. The model was solved on Dawning 5000 A in Shanghai Supercomputer Center based on contact balanced algorithm for explicit parallel computing. The dynamic responses of connectional passages were analyzed and the results can provide references for the design of connectional passage and deformational joint. References | Related Articles | Metrics

Communication and Transportation

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Study on Setting of Variable Lanes near Intersection between One-Way and Two-Way Traffic JIANG Ying-Hong, BAO Li-Xia 2011, 45 (10):  1562-1566.  Abstract ( 3071 )   Save One-way traffic is usually used to relieve traffic congestion in many cities. As there are generally two lanes on one-way roads, the phenomenon often occurs at the intersection that a lane is free while the other is congested. Based on the situation of asymmetric traffic flow, the use of variable lanes was studied and the setting method of variable lanes was analyzed. With the signal control coordinated strategy, the calculation method of switching-on and-off of the variable sign board was presented. Besides, the efficiency of variable lanes was comprehensively evaluated using such indexes as queue length, capacity, delays etc. Moreover, taking the intersection between Shanghai Dongfang Road and Pusan Road as an example, the traffic demand and problems at morning rush hours were investigated and the feasibility of setting variable lanes at the south section of Pusan Road was proposed. The simulation results indicate that the variable lanes can increase the capacity at the intersection, and reduce secondary queuing, thus reducing average delay by approximately 30%. References | Related Articles | Metrics

General Industrial Technology

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Analysis of Impact of Large Slurry Shield Construction on Environment XU Zhi-Fa, ZONG Jun-Liang 2011, 45 (10):  1567-1570.  Abstract ( 3267 )   Save For slurry shield construction, based on the construction practice of Shanghai Jungong Road large slurry shield tunnel, the effective control of the deformation of the surrounding environment was discussed regarding the construction process and technology measures in the complex environment. The field monitoring data indicate that the shield will have an impact on the surrounding environment, resulting in the uneven settlement of buildings. The practical results show that the construction parameters should be reasonably adjusted in shield construction, and settlement of the ground should be effectively controlled by establishment of monitoring information network, or protection of the buildings using ground tracking grouting. References | Related Articles | Metrics

Communication and Transportation

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Study on ValueAdded Capture Mode in Urban Mass Transit Development CHEN Meng-Jiao-1, HU Hao-2, ZHOU Hang-2 2011, 45 (10):  1571-1576.  Abstract ( 3310 )   Save Value capture measures have been adopted in urban mass transit projects to internalize external benefits in order to reduce the burden of financing in some developed regions. The mode of integrated development of mass transit station and neighbored area has achieved encouraging results. Value capture modes based on integrated development, successful cases and the key points were studied. The preliminary results show that value capture mode based on integrated development has more practical potentials in comparison with real estate tax. Two most crucial strategies were identified, i.e. controlling of land development rights and proper planning of passengers. References | Related Articles | Metrics