I think you mean grade separation, which refers to a crossing that uses an underpass or overpass. This typically refers to methods of crossing over (or under) an established road, freeway, or railroad track using a structure that is on a different level of elevation in regards to the road it is bypassing to get to the other side. A freeway overpass, for example, is built to go over the traffic of another part of the freeway as to not interrupt it to move onto a connected freeway; think of on-ramps and off-ramps as grade separators. For pedestrians, it could be an elevated crosswalk that goes over a street rather than across it.
Click here to cancel reply.
Sorry,At this time user registration is disabled. We will open registration soon!
Don't have an account? Click Here to Signup
© Copyright GreenAnswers.com LLC