When I was driving my Aunt Linda back to her house yesterday evening, she commented on a house that was painted a bright orange colour - like a Siamese temple.  She was saying that the owner must have done so because there was an overhead bridge running parallel to the house.  Furthermore, there is a hospital across the road which is also not good feng shui.  This is because by living near to places like hospitals, medical centres, hospice, cemeteries or funeral homes, ones life will be surrounded by the energy of death.
In Feng Shui, an overhead bridge or flyover is like an arrow shooting to ones heart if it faces a door or window of the house of the occupant. Therefore, living under or very close to a flyover would mean directing sha chi’ or poison arrows towards you. Besides, the high level of carbon monoxide being emitted from the vehicles would be bad for ones health.