Two parallel tangents 18 m. apart are to be connected by a reversed curve. If the radius of the branch beginning at the P.C. is to be 820 meters and the total length of the chord from the P.C. to the P.T. is to be about 250 meters, what is the required radius of the branch ending at the P.T.

S8

In a railroad layout, the centerline of two parallel tracks are connected with a reversed curve for unequal radii. The central angle of the first curve is 19°, the distance between parallel tracks is 29.55 m, radius of the second curve is 320 m, and the stationing of PC is 15+240 Determine the following: ma) Length of the long chord from PC to PT m b) radius of the first curve c) stationing of PT

Four simple curves (CURVE 1 CURVE 2 CURVE 3 are connected to form the highway curves CURVE 2 formed a compound curve with CURVE 1 CURVE 2 also formed a reverse curve with CURVE 3 The common tangent of the compound curve is parallel to its long chord The reverse curve has paralleltangentsCURVE 1 Radius = 800 meter sCURVE 1 Long Chord =170 metersCURVE 1 Stationing of PI 9 + 578.40CURVE 2 Radius = 520 metersCURVE 2 Long Chord = 135 metersCURVE 3 Radius = 750 metersCURVE 3 Long Chord = 221 meters Using arc basis, compute the following and answer the following questions1. What is the stationing of PC of the compound curve?2. What is the stationing of PCC of the compound curve?3. What is the stationing of PRC of the reverse curve?4. What is the stationing of PT of the reverse curve?

PC to PI = 376m Long chord of compound curve is parallel to 200 m common tangent PC to intersection of the common tangent & the tangent through the PC = 120 m Long chord from PC to PT = ? Show solution and box final answer

هل من امكانيل هو قن عيريف B Q2: Is it possible to fit a horizontal curve (D=4 degree) at point (B) together with another Horizontal curve (D=3 degree) at point (C) as shown the figure. Knowing that the lengths of AB, BC and CD are 140, 230 and 250m respectively? If the length of BC is increased to 750m determine the station of point (D), if the station (A) is (100+00)? 45° 30 B. Lois DEll

7. In a railroad layout, the centerline of two parallel tracks is connected with a reversed curve of unequal radi. The central angle of the first and second curve is 16° and the distance between parailel tracks is 27.6 m. Stationing of the PC is 15+420 and the radius of the second curve is 290. a) Compute the length of the long chord from PC to PT. b) Compute the radius of the first curve. c) Compute the stationing of PT.

1. The intersection of two proposed tangent AB and CD are inaccessible. Therefore, from point E which is at Sta 10+266 on Tangent AB. The line EF is run to the point F onn the Tangent CD. The angle between the prolongation of AB and the line EF as measured by the transit is found to be 37 degrees. The line EF is measured and found to be 134.50 m and the angle between EF and the prolongation of CD is 24 degrees. If Tangent AB and CD are to be connected by 5 degrees, Find: a. Sta PC b. Distance from PT to F

On a railroad line, two tangents that intersect at station 10 + 243 so as to form an angle of 36°28′ are to be connected by a compound curve consisting of two simple curves. The simple curve beginning at the P.C. which is at station 10 + 163 is to be a 4° curve whose degree is based on a 20m chord and is to have a central angle of 17°. Using chord basis, a. What should be the radius of the other simple curve that ends at the P.T.?b. Compute the stationing of P.C.C.c. What is the length of the tangent from the P.I. to the P.T. of the compound curve?

Please answer all letters.