Determine variables requested below for a horizontal curve with the following characteristics. Length of curve 1255', Radius 1200', sta of PC 12+00 superelevation rotated about the roadway centerline, 3 lane roadway, 14ft lane width, entire road section normal crown=2%, road design speed3D60 mph, max superelevation=8%. 9) The difference in elevation of LEP and REP at NC, in ft, is: O 0.42 O 1.68 O 2.52 O 3.36

Determine variables requested below for a horizontal curve with the following characteristics. Length of curve 1255', Radius 1200', sta of PC 12+00 superelevation rotated about the roadway centerline, 3 lane roadway, 14ft lane width, entire road section normal crown=2%, road design speed3D60 mph, max superelevation=8%. 9) The difference in elevation of LEP and REP at NC, in ft, is: O 0.42 O 1.68 O 2.52 O 3.36

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter15: Geometric Design Of Highway Facilities

Section: Chapter Questions

Problem 21P

See similar textbooks

Similar questions

Determine variables requested below for a horizontal curve with the following characteristics. Length of curve 1255', Radius 1200', sta of PC 12+00 superelevation rotated about the roadway centerline, 3 lane roadway, 14ft lane width, entire road section normal crown=2%, road design speed%3D60 mph, max superelevation=8% 6) The length in full superelevation, in ft, is: O 790 O 1100 O 1410 O 1875 O 2075
Determine variables requested below for a horizontal curve with the following characteristics. Length of curve 1255', Radius 1200', sta of PC 12+00 superelevation rotated about the roadway centerline, 3 lane roadway, 14ft lane width, entire road section normal crown=2%, road design speed=60 mph, max superelevation=8% 2) The design/full superelevation, in %, is: O 7.2 O 7.4 O 7.6 O 7.8 O 8.0
Determine variables requested below for a horizontal curve with the following characteristics. Length of curve 1255, Radius 1200', sta of PC 12+00 superelevation rotated about the roadway centerline, 3 lane roadway, 14ft lane width, entire road section normal crown=2%, road design speed=60 mph, max superelevation=8% 7) The difference in elevation of LEP and REP at PC/PT, in ft, is: O 0.42 O 1.68 O 2.52 O 3.36
Determine the values and stationing (sta. PT) for a compound curve to be placed on an exist loop of a freeway. The stationing of the loop construction will start at the point the taper departs the freeway with a station of 10+00. The Pl of the compound curve will begin 2,700ft after the taper starts. The first curve has a radius of 2,400ft and a deflection angle of 33° 45' and the second curve has a radius of E (Ctrl) 1,900ft and a deflection angle of 25° 15'.
Engineers group have been decided to design a highway with vertical curve in order to transfer the traffic volume through it, with a (1.90) percent grade meting (- 3.90) percent grade. The vertical curve length (984.00) ft. (Use fSkidding= 0.35, t = 2.5 sec.), sight distance you :recommended is 677 ft. 505 m. O 605 ft. O 650 ft. O 600 ft. O
A horizontal curve is being designed for a new two-lane highway (12-ft lanes). The PC is at station 150+50, design speed is 55 mi/h, and a superelevation of 0.08 fuft is to be used. If the central angle of the curve is 40 degrees, design a curve for the highway by computing the minimum radius and stationing of the PI and PT??
Determine the values and stationing (sta. PT) for a compound curve to be placed on an exist loop of a freeway. The stationing of the loop construction will start at the point the taper departs the freeway with a station of 10+00. The PI of the compound curve will begin 2,700ft after the taper starts. The first curve has a radius of 2,400ft and a deflection angle of 330 45’ and the second curve has a radius of 1,900ft and a deflection angle of 250 15’.
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?
Problem 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? A. 150 m B. 130 m C. 120 m D. 140 m
Design a Two way - one lane Highway with the following specification. V= 90 kph e=0.05 m=15 m SD=115 m wheel base = 2.25 m C=3 Pavement is rotated at center I =20 Determine the following: Minimum Radius Road Widening Transition Spiral (if any) Vertical Curve Tangent and Length of Curve Road Profile for horizontal alignment with station if the start station is 1+ 000
Highway Engineering: You are designing a highway to AASHTO guidelines on rolling terrain where the design speed will be 65 mi/h. At one section, a +1.25% grade and a -2.25% grade must be connected with an equal-tangent vertical curve. Determine the SSD given the reaction time of 2.5 sec and deceleration of 3.4 m/s^2. Determine also the minimum length of curve.
The deflection angles of two intermediate points A and B of a highway curve are given below. The chord distance between points A and B is CAB while the long chord is C. Compute the elements of the curve and find the stationing of the beginning and end of the simple curve. **No space before and after the plus sign for stationing. Station A B CAB с Sta of P.I. Deflection Angles 5° 16' 12° 17' Chord distance (m) 20 120 90+400 Elements of the given circular curve Radius (m) Intersection Angle (degree-decimal) Tangent Distance Length of Curve (m) Degree of Curve (degree-decimal) Sta of P.C. Sta of P.T.