Evaluation of heavy-vehicle-induced vibrations running on asphalt pavements

Abstract

In addition to air pollutants, cars (in particular heavy vehicles) cause noise and vibration problems. The speed and weight of heavy vehicles running over speed bumps and road surface irregularities are the main source of the induced vibrations. This, in turn, leads to annoyance of pedestrians and residents of the nearby buildings. Despite numerous studies on vibrations caused by heavy vehicles, there is a lack of sufficient research on the effect of vehicle speed and bump height on the vehicle-induced vibrations. In response to this need, a comprehensive theoretical and experimental study was conducted in this research. For this purpose, a 2.5D finite element model of the road and its surrounding soil was developed and validated. Carrying out parametric analysis of the model, the induced vibration level was derived as a function of vehicle speed and bump height. Using the results obtained, a model (in a graph format) was developed which is a guideline for design and construction of road speed bumps in the vicinity of sensitive buildings.