Most land surface models require information on aerodynamic roughness length and its temporal and spatial variability. This research presents a practical approach for determining the aerodynamic roughness length at fine temporal and spatial resolution over the landscape by combining remote sensing and ground measurements. The basic framework of Raupach, with the bulk surface parameters redefine...

This paper develops an enhanced inverse filtering-based methodology for drive-by frequency identification of bridges using smartphones real-life applications. As the vibration recorded on a vehicle is dominated by features including suspension system and speed as well road roughness, filtering aims at suppressing these effects through out vehicle- road-related features, thus mitigating few sign...

Condition assessment of pavement has a predominant part in delivering safety and comfort to users. Roughness is considered the most important characteristic as it affects road vehicle operating costs. Authorities spend significant quantity resources on using conventional methods for measuring roughness. Many researches are performed estimate roughness by deploying smartphone sensors. However, n...

Verification of the serviceability limit state of vibrations due to traffic live loads can be neglected in conventional types of concrete road bridges but becomes critical in the design of slender structures like Under-Deck CableStayed bridges. The novelty of the work presented in this article is that an innovative vehicle-bridge interaction model is employed, in which realistic wheel dimension...

Recommended Citation Udas, Amit. "Road variability and its effect on vehicle dynamics simulation." MS ii ACKNOWLEDGMENTS I would like to thank everyone who has helped me throughout the course of my Undergraduate and Master's Degree. First, I would like to thank Professor Lea-Dear Chen for supporting and guiding me over the past years throughout my Undergraduate and Master's program. In addition...

Pavement roughness serves as a crucial indicator for evaluating road performance. However, traditional measurement methods, such laser detection vehicles, are limited to providing values single profile, failing capture the overall pavement condition comprehensively. To address this limitation, study utilized high-precision light and ranging technology (LiDAR) acquire three-dimensional point clo...

Riyadh City established and implemented a Pavement Maintenance Management System (PMMS) through the General Directorate of operation. The system was created to address difficulties that come with maintaining reserving pavement network. To evaluate conditions, uses visual checks, structural capacity roughness, skid resistance. An Urban Distress Index (UDI) is calculated during assessment process...