Vocab

1. Arterial- A major through route; arterial often provide direct service between cities and large towns.

2. Egress- a way out or exit, an exit ramp on an interstate

3. Benchmark- a surveyor's mark on a permanent object of predetermined position and elevation used as a reference point

4. Feeder- a smaller road that flows into a larger road

5. Tangent Line-In geometry, the tangent line (or tangent)is a curve at a given point is the straight line that touches the curve at that point

6. Curve Length (L) - the length of a curve between objects or around an obstacle

7. Delta Angle- the change in angle of a curve

8. Point of Intersection (P.I.)- intersection of roads

9. Sight Distance- length of the roadway ahead visible to the driver

10. Vertical Curve- a transition between two elevations

11. Driveway- A driveway is a type of private road for local access to one or a small group of structures

12. Ingress- entering, an on ramp on an interstate

13. Point of Tangency- point at which a tangent line intersects a curve

14. Transit Line- a line providing public transit

15. Cut and Fill- the process of earth grading by excavating part of a higher area and using the material to fill in an adjacent lower area