Highway Engineering
The diagram which shows all important physical conditions of an accident location like roadway limits, bridges, trees and all details of roadway conditions is known as

spot maps
condition diagram
collision diagram
pie chart

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Highway Engineering
Length of a vehicle affects

width of traffic lanes
clearance to be provided under structures such as overbridges, under-bridges etc.
extra width of pavement and minimum turning radius
width of shoulders and parking facilities

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Highway Engineering
In case of summit curves, the deviation angle will be maximum when

a descending gradient meets with another descending gradient
an ascending gradient meets with another ascending gradient
an ascending gradient meets with a descending gradient
an ascending gradient meets with a level surface

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