Journal of Xi'an Highway University 

About: Journal of Xi'an Highway University is an academic journal. The journal publishes majorly in the area(s): Asphalt & Traffic flow. Over the lifetime, 178 publications have been published receiving 365 citations.

Pavement performance of semi-flexible pavement in laboratory

Abstract: Semi-flexible pavement is generally described as an open-graded asphalt concrete mixture, which is filled with Portland cement grout.It is a composition pavement surface that uses a unique combination of asphalt concrete and Portland cement concrete materials in the same layer. The wheel tracking device was utilized to measure its rutting resistance at high temperature.The bend test, split test and creep test were carried out to measure crack resistance at low temperature. The fatigue resistance performance of semi-flexible pavement mixture,the retain stability and improved Lottoman test were used to measure water susceptibility of semi-flexible pavement mixture.The results show that the semi-flexible pavement mixture has very super rutting resistance, fatigue resistance and oil resistance performance, it has better water susceptibility and crack resistance performance. When polymer resin is added into cement grout,it can signally improve crack resistance and water susceptibility performance.

Evaluation Method for Low Temperature Anti-cracking Performance of Asphalt Mixture

Abstract: The evaluation methods of low temperature anti cracking performance of asphalt mixture are not unifiedSo to find an evaluation method of anti cracking performance of asphalt mixture as soon as possible is greatly important to reduce shrink cracking of asphalt pavement on the basis of analyzing and researching some evaluation methods from China and abroadThrough the analysis of tests and their results, it is found that the compressive strain energy of asphalt mixture at low temperature can reflect the low temperature performance, and asphalt the creep test at low temperature, can show the performance of asphalt mixture at 0℃,10% failure load The compressive strain energy method can evaluate low temperature performance of asphalt mixture The results indicate that the compressive strain energy method is simple and effective

Determination of distance for vehicle collision avoidance warning and braking

Abstract: In rear-end collision avoidance system, the warning and braking distance has an important effect on the application of the real systems. And the distance is generaly calculated with the relative velocity and acceleration between vehicles, in reality, the driver's driving style and road conditions may have a influence on the safety distance. So a safety distance model for vehicle collision avoidance warning and braking was introduced, the model was modified according to individual driver's driving style and road surface conditions, which makes the model can adapt to different road surface and different driver's driving style. It is proved by simulation that the modified model is better for practical use.

Image processing with medium value filter

Abstract: This paper studied vision characteristic of eyes and analyzed image noise. A practical method of dispel image noise with medium value filter was put forward. Based the mothods for noise dispel, the spectrum of image signal and the effect of filter were researched. The results show that medium value filter is an optimum method in dispel image noise.

Analysis of the transportation system coordination

Abstract: Based on the system theory,this paper discussed the coordination of the transportation system,and given the evaluation methods of the degree of the systems' coordination,studied the coordination development inter the sub system and between the sub system of the transportation system,and provided the foundation for the further study of the transportation systems' sustainable development.