Simulated future underground train and subway commuter tunnels can impact adjacent buildings with EMI sensitive instrumentation. The figure below shows a 25-0-25 kVA traction current underground catenary rail system emission profile. The auto-transformer style traction system creates certain mitigation design challenges. The computer generated emission profile from the railway can be utilized to provide guidance to developers for placement of the railway to not only reduce electromagnetic interference for sensitive imaging equipment but also for human health purposes.
