The plan view below shows the centerlines of Freeway A and Freeway B intersecting at an interchange. The northwest side of the interchange already has a building that cannot be moved or demolished. Draw the layout of a possible trumpet interchange. Use a solid line to represent all the lanes in the same direction, with an arrow to indicate the traffic movement.

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Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.