Although the universal definition of MEMS product possesses a number of distinctive features, they are miniature systems involving one or more micro-mechanical components or structure. Infrastructure assessment has recently addressed an important field for MEMS application. For example, satisfactory laboratory experiment in the area of concrete monitoring has been developed. Although the experi...

Road quality degradation affecting on safety and comfort of road users. It is necessary to carry out regular assessments the functional structural condition pavement. Evaluation conditions carried maintain good services. This research aims evaluate using Pavement Condition Index (PCI) method International Roughness (IRI) method. The tool used in testing Hawkeye 2000 car which generates data for...

Technological advances, financial possibilities and changes of demands have increasingly affected the pavement maintenance environment for outsourcing in recent years. This induces complexity in the contracting methods of pavement maintenance activities. Despite the fact that current contracting practices on pavement maintenance activities are not sufficient to deal with changes providing the i...

Roads have a very important role in human life. For the present and future, era of industrialization, trade public transportation, transportation goods services. This study aims to determine type damage that occurs on pavement surface, conditions necessary actions Lahat-Pagaralam section bridge from Endikat Depati H. Duaji road Pagaralam-Lahat by using Pavement Condition Index method ( PCI). Th...

The present paper deals with a view of the availability of high-speed sensor profilers, which has given dramatically increased possibilities to analyze imperfections in pavement surfaces such as roughness. Technical parameters of such profilers, for sensing and analyzing pavement surface profile are described. In addition, the main investigation concentrates on the evolutional process of paveme...

In recent years, urbanization has developed rapidly, and urban road play a vital role as the premise. Due to good effectiveness of asphalt pavement, which is more popular in road, maintenance demands are also increasing. order make work appropriate, accurate pavement performance evaluation This paper collects data condition Shanghai calculates sub-indexes each section. We use entropy weight met...

Pavement condition assessment is essential when developing road network maintenance programs. In practice, the data collection process is to a large extent automated. However, pavement distress detection (cracks, potholes, etc.) is mostly performed manually, which is labor-intensive and time-consuming. Existing methods either rely on complete 3D surface reconstruction, which comes along with hi...

In this paper, the potential use of an exponential hidden Markov model to model a hidden pavement deterioration process, i.e. one that is not directly measurable, is investigated. It is assumed that the evolution of the physical condition, which is the hidden process, and the evolution of the values of pavement distress indicators, can be adequately described using discrete condition states and...

–The maintenance of pavements and particularly for flexible pavement is an essential requirement for the efficiency of highway network. For better serviceability, flexible pavements require more maintenance as compared to maintenance required for rigid pavements. But developing counties like India does not have sufficient budget or funds to satisfy the requirements. The maintenance & rehabilita...

This study introduced at first the background of numerous highway widening projects that have been developed in recent years in China. Using a large ground settlement simulator and a fiber Bragg grating (FBG) strain sensor network system, a large-scale model test, with a similarity ratio of 1:2, was performed to analyze the influence of differential settlement between new and old subgrades on p...