Journal of Highway and Transportation Research and Development (English Edition): Recent submissions
Now showing items 661-680 of 742
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Empirical Study of Fractal Characteristics of Traffic Time Series
(American Society of Civil Engineers, 2011)In order to analyze the fractal characteristics of traffic flow under synchronized, jam and free conditions, the complexity of traffic flow was depicted by using correlation dimension, the long—term dependence of traffic ... -
Travel Time Fusion Based on Influencing Factors Classification
(American Society of Civil Engineers, 2011)A detailed description and analysis of the methods of travel time estimation based on the data collected by loop coil and floating car were made. The main factors influencing the accuracy of the abovementioned two methods ... -
Driver’s Visual Lobe Feature and Application of Urban Tunnel
(American Society of Civil Engineers, 2011)Taken drivers’ fixation point movement characteristics in urban tunnel as research object, 16 times effective driving test were carried out with 4 drivers by using eye tracker system to obtain the universal pattern of ... -
Adaptability Evaluation for Road Network in Economic Circle
(American Society of Civil Engineers, 2011)An adaptability evaluation system for the road network in economic circle was established based on analysis of the mechanism of road network construction and regional social and economic development. A weighted gray ... -
Lateral Stability of Semi-trailer Train Running along a Curve
(American Society of Civil Engineers, 2011)For the further study of the lateral stability of semi-trailer train running along a curve, the virtual prototype of semitrailer train which has 21 degrees of freedom was fabricated with the theory of dynamics and the ... -
Modal Analysis and Local Stiffness Optimization for Body-in-white of Car
(American Society of Civil Engineers, 2011)Using preprocessing software Hypermesh and FEA software MSC. Nastran, the detailed finite element model of car body-in-white (BIW) was established based on the theory of finite element. Finite element modal analysis and ... -
Study on Application of Environmental Value in Expressway Construction Project Scheme Choosing
(American Society of Civil Engineers, 2011)The serious negative impacts on local ecosystem alongside caused by expressway construction activities were analyzed. Based on theory of ecosystem services value and cost benefit analysis (CBA), the influence on and the ... -
Study on Green Tunnel Entrance Landscape and Its Evaluation System
(American Society of Civil Engineers, 2011)On the basis of study on concept of domestic and overseas tunnel entrance landscape and the evaluation methods, a concept of green tunnel entrance landscape was brought forward with consideration of safety, artistry, economy ... -
Study of Axle Load Conversion for Pavement with Reflective Crack Based on Stress Intensify Factor
(American Society of Civil Engineers, 2012)By applying the theory of fatigue fracture, equivalent conversion of load between 3D model and plane strain model was performed according to the equivalent principle of maximal stress in undamaged semi – rigid base. ... -
Research on Mixture Component Design of “Skeleton-dense” Cement Fly-ash Stabilized Aggregate
(American Society of Civil Engineers, 2012)Coarse and fine aggregate gradation limitation, ingredient proportion calculation method and formula parameter testing method for “skeleton-dense” cement fly-ash stabilized aggregate mixture design were presented. On the ... -
Study on Identification of Cavity Area under Concrete Pavement Using Transient Impulse-response Method
(American Society of Civil Engineers, 2012)Based on the existing detection methods of cavity areas under concrete pavement, the transient impulse-response method for cavity detection was put forward. The detailed operation process of cavity detection was described ... -
Calculation of Settlement of Composite Foundation with Rigid Piles under Flexible Ground
(American Society of Civil Engineers, 2011)According to the character of the interaction of the pile, soil and cushion in composite foundation by fitting the vertical relative displacement distribution function of pile-soil element and introducing an elastic-plastic ... -
Permanent Deformation Characteristics and Prediction Model of Silty Subgrade Soils under Repeated Loading
(American Society of Civil Engineers, 2011)By using dynamic tri-axial testing, permanent plastic strain curves of silty subgrade soil under 104 repeated loading were tested with three water content levels, two compaction degree levels and three deviator stress ... -
Light Polymer Cement Mortar Pavement for Orthotropic Steel Bridge Decks
(American Society of Civil Engineers, 2011)The mechanical behavior of pavement on orthotropic steel bridge deck with rib stiffener, longitudinal clapboard and diaphragm was analyzed at first by finite element method. It shows that the larger the elastic modulus of ... -
Typical Sectional Form of Circular Pipe Culvert beneath High Embankment
(American Society of Civil Engineers, 2011)By using the finite element method, the sizes of circular pipe culvert with different depths of fill were calculated based on the modeling to obtain each kind of stress characteristics of structure pattern culvert under ... -
Remaining Life Prediction of Asphalt Pavement under Dynamic Load
(American Society of Civil Engineers, 2011)Taken pavement surface roughness as excitation, a -
Wind Tunnel Test of Aerodynamic Optimization Measures for Flutter Stability of Super Long-span Bridge with Truss Girder
(American Society of Civil Engineers, 2011)Taken a grand long-span suspension bridge with truss girder for example, the influences of various aerodynamic controlling measures such as central-slotting in bridge deck plate, apron board and pneumatic winglets on the ... -
Design and Application of 3D Laser Profile Data Acquisition System
(American Society of Civil Engineers, 2011)In order to measure the trivial road deformation by the full—scale accelerated load testing, a theory to acquire 3D laser profile data with a single—point laser (2 μm) was proposed to design and develop a measuring instrument. ... -
Experiment of Antiseismic Ductility of Hollow Rectangular Thin-walled Pier
(American Society of Civil Engineers, 2011)For further researching on antiseismic ductility of rectangular cross-section and hollow thin-walled piers, pseudo-static test for four specimens of such piers were performed under constant axial load and cyclically reversed ... -
Impact Effect on Bridge in Model of Vehicle-bridge Coupled Vibration System
(American Society of Civil Engineers, 2011)The bridge and vehicle were treated as two separated sub-systems, the FEM model of three vehicle-bridge vibration were established based on software ANSYS. The dynamic response of vehicle-bridge coupled vibration system ...