Monday, April 12, 2010

Vocab

Arterial-A major through route; arterial often provide direct service between cities and large towns.
Freeway-expressway: a broad highway designed for high-speed traffic
Benchmark-a surveyor's mark on a permanent object of predetermined position and elevation used as a reference point

Sight Distance-The length of roadway visible to a driver or pedestrian; the distance a person can see along an unobstructed line of sight.
Tangent Line-In geometry, the tangent line (or simply the tangent) to a curve at a given point is the straight line that "just touches" the curve at that point
Curb Cut-A curb cut (U.S.), curb ramp, dropped kerb (UK), or pram ramp, Kerb ramp (Australia) is a ramp leading smoothly down from a sidewalk to a street

Curve Length (L) - the length of a curve between objects or around an obstacle
Cut and Fill-The process of earth grading by excavating part of a higher area and using the excavated material for fill to raise the surface of an adjacent lower area.
Degee of curve (D)- the angle of a curve between objects or around an obstacle.

Point of Intersection (P.I.)- intersection of roads
Driveway-A driveway is a type of private road for local access to one or a small group of structures, and is owned and maintained by an individual or group
Egress- an exit off of a road

Feeder- a smaller road that leads into a larger road
Ingress- a way to enter a road or freeway
Transit Line- a line providing public transit

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