A horizontal curve with spiral is being designed for a new two-lane highway (3.6-m anes and 2% normal crown slope) using TAC (2017) guidelines. The Point of ntersection is at station (1+134.000) and the central angle of the curve is 35°. Determine the minimum horizontal curve radius and the stations of TS, SC, CS, and ST if the design speed is 110 km/h and superelevation rate is 6%.

A horizontal curve with spiral is being designed for a new two-lane highway (3.6-m anes and 2% normal crown slope) using TAC (2017) guidelines. The Point of ntersection is at station (1+134.000) and the central angle of the curve is 35°. Determine the minimum horizontal curve radius and the stations of TS, SC, CS, and ST if the design speed is 110 km/h and superelevation rate is 6%.

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

Design a horizontal curve for the highway by computing the radius and stationing of PC and PT using the following data, # of lanes = 2 Width per lane = 12 ft Pl is at station 120+20 Design speed is 60 mi/h Superelevation = 0.06 ft/ft Central angle of the curve = 37 degrees
12. Find the minimum length of curve for the following scenarios. Entry Grade Exit Grade Design Speed Reaction Time A 3% 8% 45 mi/hr 2.5 s В -4% 2% 65 mi/hr 2.5 s 0 % -3% 70 mi/hr 2.5 s
I need an answer asap. Complete solution. Subject: highway engineering
(b) For the safe road design and smooth traffic flow, combination of transition and circular curve will be constructed to combine two tangent line that have bearing of N 70° E (entry tangent) and S 80° E (exit tangent) respectively. With the aid of sketch, design the minimum length of transition curve and circular curve that has the following characteristics • Design speed = 110 km/hr coefficient of side friction, f= 0.15 Superelevation, e = 5 % • Radial acceleration, c = 0.9 m/s³
A horizontal curve is being designed for a new two-lane highway (3.6-m lanes). The PI is at station 7 + 640, the design speed is 105 km/h, and a maximum superelevation of 0.08 m/m is to be used. If the central angle of the curve is 35 degrees, design a curve for the highway by computing the radius and stationing of the PC and PT.
Create a circular curve using this data with a section of a two lane, two highway
Question in Picture
Questions 5. a) A vertical crest curve has an approach grade +3% and a departure grade -2%. The Intersection Point (IP) level is 100m Australian Height Datum (AHD), on Chainage 1000 m. It is proposed to use a curve 550m long. Calculate: i) Chainage and Level at TP1 ii) Chainage and Level at TP2. iii) Chainage and level at the apex point.
Example: A grade g1 of -2% intersects g2 of +1.6% at a vertex whose station and elevation are 87+00 and 743.24, respectively. A 400' vertical curve is to be extended back from the vertex, and a 600’ vertical curve forward to closely fit ground conditions. Compute and tabulate the curve for stakeout at full stations.
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??
A vertical curve is required to join a road with + 2.5% grade to a road with -3% grade. The design speed of the road is 90 kmph and safe stopping sight distance is 180 m on the road. The coordinates of VPI is (500 m, 100 m), with respect to a fixed bench mark. The horizontal co-ordinate of highest point of curve with respect to fixed benchmark is m. (rounded off to two decimal place)
An existing sag vertical curve on highway joins a +2.5% grade with a -5.1% grade. If the posted speed limit is 40 mph. Determine the length of the sag curve based on a. Stopping sight distance b. Comfort с. Арpearance