| dc.description.abstract | Elevated rail infrastructure has potential to cause structure-radiated noise and vibration concerns during rail op-erations to the neighbouring community. In this paper, an overview of a structure-radiated noise and vibration assessment method is presented for a box girder design, with elevated station platforms fully supported off the viaduct structure. At first, a simplified method to assess structure-radiated noise levels from viaducts during pre-liminary design stages of rail infrastructure is explained. The paper also provides a detailed assessment method using a Noise of Railway Bridges and Elevated Structures (NORBERT) model. The NORBERT model is also used to predict force inputs on the structures, which are in turn used in a Finite Element Model (FEM) to predict the vibration levels on station platforms. A brief overview on criteria applicable for such assessments is provided. Sensitivity of parameters associated with rolling stock inputs, rail fastening system and bridge design are also briefly reviewed. The advantages and limitations associated with the assessment technique and modelling inputs are further explored in this paper. This assessment method can be used effectively to mitigate noise and vibration risks associated with rail infrastructure, and develop design solutions to address any relevant environmental con-cerns. | en_US |
