QUESTION 2A 7.2% upgrade meets a 1.4% upgrade. The operating speedfor the road is 100 km/h. The chainage and reduced levels80 m after the vertical curve are 1420.00m and 96.055mrespectively.(a) Determine the vertical curve length to be adopted (roundyour answer to the nearest 50m).(b) Calculate the RL and chainage at TP1.(c) Calculate the RL on the gradeline and curve at chainage1287.00m.

Answered: Image /qna-images/answer/0ae10f78-fa6f-4a16-972d-b69155ebee92.jpg

Answered: QUESTION 2 A 7.2% upgrade meets a 1.4%…

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

(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
For the following conditions: Design speed 60 mph, V/C ratio = 0.6, Level of service = Curve radius, 955 ft, Time value = $4/hr. If the basic section cost for passenger cars on a multilane highway is $206/KV-M, estimate the highway grade. B, %3D
The project speed is 100 km/h on a divided state road with a vertical curve. The driver's transition reaction time is 2.0 seconds; the friction coefficient is 0.4. Accordingly, calculate the following: a) The slopes of g, and g2. b) The vertical curve length (L). c) Calculate the grade line elevation of the points T1 and T2 as well every 30 meters and present them in a table format. Note: use the Stopping sight distance to solve thia
PROBLEM #1) An existing highway with bearing of N 20deg E to be connected to another highway, with bearing of N 75deg E, by a 4-degree simple curve. What length of curve is required? (SIMPLE AND COMPOUND CURVES) *PLEASE REFER TO THE FORMULAS BELOW*
Calculate the maximum permissible speed on curve of high speed B.G. track having the following particulars: Degree of the curve =2°, Amount of superelevation = 150 m, Max. speed of the section likely to be sanctioned = 165 kmph. = 8.0 cm, Length of transition curve
Q1. A rising gradient AB and a falling gradient BC are to be connected by a vertical curve. Based on the data given in Table Q1, design the curve at 20 metres intervals. First Grade (± %) Second Grade (± %) Sighting Distance (SSD) Driver's eye (h₂) Object height (h₂) 3.6 -1.7 150 1.05 0.3 Table Q1 (Units are in metres) RL of highest/lowest pt Chainage of highest/lowest pt 38.788 3621.191
A rising gradient AB and a falling gradient BC are to be connected by a vertical curve. Based on the data given in Table Q1, design the curve at 20 metres intervals. Table Q1 (Units are in metres) First Grade (± %) Second Grade (+ %) Sighting Distance (SSD) Driver's eye (h₁) Object height (h₂) 4.2 -1.8 145 1.05 0.3 F G RL of highest/lowest pt Chainage of highest/lowest pt| H 39.171 4048.600 K
Q1) The project speed is 100 km/h on a divided state road with a vertical curve. The driver's transition reaction time is 2.0 seconds; the friction coefficient is 0.4. Accordingly, calculate the following: a) The slopes of and g2. b) The vertical curve length (L). c) Calculate the grade line elevation of the points T1 and T2 as well every 30 meters and present them in a table format. T1 A Station 0+000 Elevation = 400 m Station 1+200 Elevation 460 m P T2 B Station 2+200 Elevation 490 m
The arterial road with a 100 km/h design speed will be constructed on the flat terrain. At one section, the equal tangent vertical curve as shown in Table 3 is proposed. Table 3: Parameters of Vertical Alignment Length 490 m PVC station 3+700.000 PVC elevation 460 m Initial grade -3.5% Final grade 6.5% (a) Calculate the stationing and elevation of the low point, PVI and PVT. (b) Calculate the minimum length of curve to meet stopping sight distance requirements
C. 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 | - 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
Question in Picture
There is a need for conducting a design check for a horizontal curve (flat terrain) for an intermediate speed highway in rural Victoria. Given the design speed is 80kmph and super elevation is 7%. The provided horizontal curve radius was equal to the 700 m. Would the designed curve radius will be sufficient to attain the super elevation? If not, what would be the correct radius for horizontal curve? When suggesting a new radius please check and make sure that the provide super elevation is higher (>7%) than required.

SEE MORE QUESTIONS

Recommended textbooks for you

Traffic and Highway Engineering

Civil Engineering

ISBN:

9781305156241

Author:

Garber, Nicholas J.

Publisher:

Cengage Learning

Traffic and Highway Engineering

Civil Engineering

ISBN:

9781305156241

Author:

Garber, Nicholas J.

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS