A Study on Ground Vibrations Induced by Metro Train Movement

Nanotechnology deals with particles and system with dimensions of approximately 1 to 100 nanometers. The environment factors like ground vibration, temperature, humidity, acoustics, air velocity, Electro Magnetic Interference, Illumination and cleanliness will limit the performance of equipments used in nano manufacturing. Among all the environmental factors, ground vibration plays a major role in limiting the performance of the equipment. Some aspects of nanomanufacturing facilities like nanofabrication, nanometrology requires extremely stable environment with very stringent limits of ground vibration. This paper is focused on the study of vibrations induced by metro train movement. The study reveals that, the vibration induced by metro train is exceeding the limits as per the standard set by the National Institute of Standards and Technology (NIST).