Highway And Railroad Reviewer PDF

X Arterial Highway - a general term denoting a highway primarily for thorough traffic usually on continuous route U Berm - A horizontal strip or shelf built into an embankment or cut to break the continuity if an otherwise long slope K Culvert - A structure in the form of a pipe or box below road le...

X Arterial Highway - a general term denoting a highway primarily for thorough traffic usually on continuous route U Berm - A horizontal strip or shelf built into an embankment or cut to break the continuity if an otherwise long slope K Culvert - A structure in the form of a pipe or box below road level for conveying storm water runoff Z Ditch - An artificial open channel or waterway constructed through earth or rock for the purpose of carrying water N Divided Highway - a highway with separated roadways for traffic in opposite directions V Expressway - A divided highway for through traffic with full or partial control of access and generally with grade separation at intersections Q Manhole - An opening through which a person may enter or leave a sewer conduit or other closed structure for inspection cleaning and other maintenance operations closed by a removable cover A Median - The portion of a divided highway separating traveled ways for traffic in opposite direction S Parkway - The portion of a highway including shoulders for vehicular use H Shoulder - The portion of the roadway contiguous with the traveled way for accommodation of stopped vehicles for emergency use and for lateral support of base and surface course T Subgrade - The portion of the roadbed prepared as a foundation for the subbase or surface course M Traveled way - The portion of the roadway for the movement of vehicle exclusive of auxiliary lanes shoulders bicycle lanes parking lanes and gutters C Weep Hole -An opening provided during construction in retaining walls aprons canal linings foundations etc to permit drainage of water collecting behind and beneath such structures to reduce hydrostatic head O Topography - The arrangement of the natural and artificial physical features of an area D Design Volume - The number of of vehicles which is estimated to pass towards the end of its life B Design Speed - The maximum safe speed of vehicles that can be maintained over a specified section of the highway when conditions are so favorable that the design features of the highway govern E Roadway Capacity - THe maximum hourly rate at which vehicles reasonably can be expected to traverse a point or a uniform section of alane or roadway during a given time period under prevailing roadway traffic and control conditions F Clear Zone - The area along the side of the traveled way including the shoulder that is available for recovery of an errant vehicle G National Roads - Classified as primary secondary and tertiary roads