A reversed curve with diverging tangent is to be designed to connect to threetraversed lines for the portion of the proposed highway. The lines AB is 185 m, BC is122.40 m, and CD is 285 m. The azimuth are Due East, 242°, and 302° respectively. Thefollowing are the cost index and specification:Type of Pavement = Item 311 (Portland Cement Concrete Pavement)Number of Lanes = Two LanesWidth of Pavement = 3.05 m per laneThickness of Pavement = 280 mmUnit Cost = P1,900 per square meterIt is necessary that the PRC (Point of Reversed Curvature) must be one-fourth thedistance BC from B.A) Find the radius of the first curve. B) Find the length of road from A to D. Use arcbasis. C) Find the cost of the concrete pavement from A to D.ERSI

Given:- AB=185m BC=122.40m CD=285m azimuth=Due East 242o and 302o Type of pavement=Item 311 Number…

Answered: A reversed curve with diverging tangent…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A highway engineer must stake a symmetrical vertical curve where an entering grade of +0.80% meets an existing grade of -0.40% at station 10 + 100 which has an elevation of 140.36 m. If the maximum allowable change in grade per 20 m station is -0.20%, what is the length of the vertical curve? Discuss, how you derive your answer on the question above.
3. Consider the same vertical curve from Problem 1 that has a +3.2% initial grade and -1.1% final grade. The point of vertical intersection is at station 98+20. The highest point of the curve is at station 100+79.35 to meet the drainage design. What is the station of the point of vertical tangency (also known as end of vertical curve). 103+51.05 103+53.01 103+47.56 103+49.89
5.1 A circular curve is used as part of the horizontal alignment of a 2-lane, one way road. The curve has a radius (R) = 300 m, PI chainage = 0+905.280, BC chainage =0 +639.280 and EC chainage = 1+074.520. Calculate the following: 5.1.1 The curve central angle and curve length. 5.1.2 The deflection angle at chainage 1+038.491 5.1.3 The curve total widening requirement if the design vehicle is articulated bus.
In your engineering survey course, your instructor put you in a group to help a transportation engineering Company to design a road that runs a 5°50’ curve to P.C.C and 275 m. long from P.C. of the compound curve. Then a 2°15’ curve runs towards P.T., which is 590 m long. The company ask your team to compute the following for the design of the new road of ‘NU Normal Lane.” a.) The angle that the long chord makes with the first tangent b.) Stationing of P.C if the stationing of P.T. is 10 + 897.30 m
In your engineering survey course, your instructor put you in a group to help a transportation engineering Company to design a road that runs a 5°50’ curve to P.C.C and 275 m. long from P.C. of the compound curve. Then a 2°15’ curve runs towards P.T., which is 590 m long. The company asked your team to compute the following for the design of the new road of ‘Glorious Mythic Lane.” The angle that the long chord makes with the first tangent
The tangent vertical alignment of a section of proposed highway is shown in the figure below. Determine the vertical clearance (ft) between bridge structure at Station 23+00 and the vertical curve.
What is the minimum radius of curvature allowable for a roadway with a 100 kph design speed, assuming that the maximum allowable superelevation rate is 0:12? SHOW THE CORRECT SOLUTION. A. 328 m B. 283 m C. 832 m D. 490 m
For items 1, and 2: A vertical parabolic curve of 260-m length has a back-tangent of -4.2% grade and a forward tangent of +3.0% which intersect at Station 11 + 488.00 with elevations 20.80 meters. a.) If cross-drainage pipes will be installed, determine the pipes' stationing. Provide the answer in kilometers e.g. 11,900 (instead of 11+900). 11+509.67
Two straight sections of road are to be linked by a wholly transitional curve comprising two clothoid spiral curves with differing rates of gain of radial acceleration. Deflection angle between the two straight sections of road 43.5 Design Speed 75 Rate of gain of radial acceleration for entry transition curve 0.400 Rate of gain of radial acceleration for exit transition curve 0.600 Answers required: a) What is the value of the point radius where the two transition curves meet?
4. Which of the following are the accepted criteria for design of valley curve for highways?1. Headlight sight distance2. Passing and non-passing sight distance3. Aesthetic consideration4. Motorist comfort5. Drainage controlSelect the correct answer using the codes given below:a.1 and 5b.1,2, 3 and 4c. 2,3, 4 and 5d. 1,3, 4 and 5
add the data for crown slope, tangent runout, and lane width: V = 80KM/H , lane width = 4m R = 220m, normal crown @ 2% Δ = 28° 08’RT, tangent runout @ 400:1 PI @ 1+286.441, PVI @ 1+300 TWO LANE ROAD, g1 = -1%; g1 = +3% Compute the elevations of the centerline and edges of pavement at 20 m stations, and at all key stations between 1+160 and 1+420. The superelevation rate (e) = 0.060.
In your engineering survey course, your instructor put you in a group to help a transportation engineering Company to design a road that runs a 5°50’ curve to P.C.C and 275 m. long from P.C. of the compound curve. Then a 2°15’ curve runs towards P.T., which is 590 m long. The company asked your team to compute the following for the design of the new road of ‘Glorious Mythic Lane.” Length of the first subtangent. The angle that the long chord makes with the first tangent

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A reversed curve with diverging tangent is to be designed to connect to three traversed lines for the portion of the proposed highway. The lines AB is 185 m, BC is 122.40 m, and CD is 285 m. The azimuth are Due East, 242°, and 302° respectively. The following are the cost index and specification: