DO NOW. REVIEW Alternate Exterior REVIEW UNIT 1 REVIEW BINGO!
Review 1
2
Chapter 2 SIMPLE CURVES 2.1. Elements of a Simple Curve A simple curve is a circular arc, extending from one tangent to the next. a. Po int of Cur ve or P oint of Cu rvat ure ( PC) - The point where the c ircular cur ve begins or the point wher e the circular curve leaves the rst tangent. b. Point of T angent or P oint of T angenc (PT) - The point where the c urve ends or the point wher e the curve !oins the second tangent. c. Point of "ntersec tion (P ") or # ertex (#) - The point where the t wo tangents intersect. d. T angent $istance (T) - The distance from the v ertex to the P C or PT. e. %xt er nal $ist ance ( %) - The distance from the v ertex to the c urve measur ed towards the center.
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Transcript of Review 1
Chapter 2SIMPLE CURVES
2.1. Elements of a Simple CurveA simple curve is a circular arc, extending from one tangent to the next.
a. Point of Curve or Point of Curvature (PC) The point where the circular curve begins or the point where the circular curve leaves the first tangent.b. Point of Tangent or Point of Tangency (PT) The point where the curve ends or the point where the curve joins the second tangent.c. Point of Intersection (PI) or Vertex (V) The point where the two tangents intersect.d. Tangent Distance (T) The distance from the vertex to the PC or PT.e. External Distance (E) The distance from the vertex to the curve measured towards the center.f. Middle Ordinate (M)
