A vertical curve starts at PVC at STA(200+00), ends at PVT at STA(216+00), with PVI at STA(208+00). g₁=3.59 and g₂ = -3.5%. If the elevation of PVC is Z, what is the elevation of the highest point of the pavement surface and the station number of this point? For this vertical curve, a dangerous object is 2.0 ft tall, and the driver's eye level is at 3.5 ft above the paveme surface. Calculate the driver's sight distance S. You may assume SSL to start your calculation. For this vertical curve, the design speed is 50 mph which requires SSD-423 ft. Do drivers have adequate sight distance?

A vertical curve starts at PVC at STA(200+00), ends at PVT at STA(216+00), with PVI at STA(208+00). g₁=3.59 and g₂ = -3.5%. If the elevation of PVC is Z, what is the elevation of the highest point of the pavement surface and the station number of this point? For this vertical curve, a dangerous object is 2.0 ft tall, and the driver's eye level is at 3.5 ft above the paveme surface. Calculate the driver's sight distance S. You may assume SSL to start your calculation. For this vertical curve, the design speed is 50 mph which requires SSD-423 ft. Do drivers have adequate sight distance?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: A vertical curve is required for a 1st class 3x3 highway section with entering and exiting grades of…

A: The entering and exiting grades of + 5.10% and -6.40%, respectively.The point of intersection of the…

Q: A vertical curve is needed to join to tangents; G₁=0% and G₂=-5%. Assuming a level grade (0%) for…

A: Vertical curves are formed when two different gradients meet at a point. If convexity of curve is…

Q: 3. What is AASHTO's recommended perception reaction time (s)?

A: Reference : AASHTO, American Association of State Highway and Transportation To determine : AASHTO…

Q: A vertical curve is needed to join to tangents; G₁=5% and G2=2%. Assuming the worst case scenario…

Q: Problem 2. This is a four-part problem. A +2.5% grade intersects with a –1.5% grade at station (735…

A: Note:- Hi! Thank you for the question, As per the honor code, we are allowed to answer three…

Q: An existing equal-tangent sag vertical curve is designed for 60 mi/h. The initial grade is −3% and…

Q: A 1400-ft-long sag vertical curve (equal tangent) has a PVC at station 115 + 00 and elevation 750…

Q: What is the elevation of the low point?

Q: nly answer question 6

A: Stopping Sight Distance is the minimum distance that must be available in front of driver so that he…

Q: Problem 1. A 2300-ft equal-tangent crest vertical curve is currently designed for 60 mph. This curve…

A: L= 2300 feet V= 60 mph initial grade G1 = +3.5% To find: 1. The min k-value under 60 mph design…

Q: An equal-tangent crest vertical curve is designed for 45 mi/h. The high point is at elevation 380.10…

A: Solution Given That G1=+1.90%G2=-3.10%

Q: g vertical curve has a -3% down grade followed by a +3% upgrade. the design height of the headlight…

A: SSd=423ft h'=2ft to find length of sag curve

Q: 5. What is the assumed height (ft) of the driver's eye for passenger cars?

A: Explanation : The driver's eye distance/ height of driver's eye for passanger cars is the vertical…

Q: (TRAFFIC AND HIGHWAY ENGINEERING) A highway segment has an equal-tangent sag curve and a horizontal…

Q: A highway has +2.0% grade followed by a -2.0% grade. The PVC is at STA(1033+58.00) and the PVT is at…

A: Following are the given data. A highway has +2.0% grade followed by a -2.0% grade. The PVC is at STA…

Q: A vertical curve is needed to join to tangents; G₁=1% and G2=4%. Assuming a level grade (0%) for…

A: G1 = 1% and G2 = 4% Design speed = 60 m/hr As per AASHTO, Reaction time = 2.5 sec Deceleration…

Q: 3. A 3° horizontal curve is proposed to begin at STA 12+35 and end at STA 34+35. The design speed of…

Q: A horizontal curve is being designed for a new four-lane roadway with 11-ft lanes. The PT is located…

A: Given;Road has four lane of 11 ft.PT is located at station 105+20Design speed = 45 mph =66…

Q: 2. A vertical parbolic curve was design in order to have a clear sight distance of 120 m. The grade…

Q: QUESTION 9 A vertical curve is needed to join to tangents; G₁=2% and G2-5%. Assuming the worst case…

A: Given:- The grades of the vertical curve are:- G1 = 2% G2 = 5% The design speed is 50 mph To…

Concept explainers

Drainage of Pavements

Pavement Drainage holds ample significance, as it prevents the accumulation of water or any liquid on the surface of pavements and ensures proper drainage system. With proper design and gradual slopes provided, the water gets easily removed from the surface into the drains, which are essential during heavy rains and unusual weather conditions keeping it less prone to accidents and increasing the durability of the pavement structure.

Question

A vertical curve starts at PVC at STA(200+00), ends at PVT at STA(216+00), with PVI at STA(208+00). g₁-3.5%
and 9₂ = -3.5%. If the elevation of PVC is Z, what is the elevation of the highest point of the pavement surface and
the station number of this point?
For this vertical curve, a dangerous object is 2.0 ft tall, and the driver's eye level is at 3.5 ft above the pavement
surface. Calculate the driver's sight distance S. You may assume S≤ L to start your calculation.
For this vertical curve, the design speed is 50 mph which requires SSD-423 ft. Do drivers have adequate sight
distance?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

A car is traveling up a 1.25% grade of a crest curve with a design speed of 65 mph. The descending grade is -2.75%. What is the required length of curve for minimum proper stopping sight distance? AASHTO Minimum Stopping Sight Distances on Level Roadways (based on braking distance) stopping sight distance design speed (mph) braking distance on level (ft) design (ft) (m) brake reaction distance calculated (km/h) (ft) (m) (m) (ft) (m) (20) (30) (40) (50) (60) (70) (80) (90) (100) (110) (120) (130) (13.9) (20.9) (27.8) (34.8) (41.7) (48.7) (55.6) (62.6) (69.5) (76.5) (83.4) (90.4) (4.6) (10.3) (18.4) (28.7) (41.3) (56.2) (73.4) (92.9) (114.7) (138.8) (165.2) (193.8) (18.5) (31.2) (46.2) (63.5) (83.0) (104.9) (129.0) (155.5) (184.2) (215.3) (248.6) (284.2) (20) (35) (50) (65) (85) (105) (130) (160) (185) (220) (250) (285) 15 55.1 21.6 76.7 80 20 73.5 38.4 111.9 115 25 91.9 60.0 151.9 155 30 110.3 86.4 196.7 200 35 128.6 117.6 246.2 250 40 147.0 153.6 300.6 305 359.8 423.8 45 165.4 194.4…
The question about civil (transportation) engineering. This is my homework,please help me
An equal-tangent vertical curve is designed for the year 2030 for a design speed of 70 mi/h to connect grades G1 = 1.2% and G2 = - 2.1%. In 2030, vehicles have become smaller so that the driver's eye height is assumed to be 3.0 ft above the pavement and roadway objects are assumed to be 1.0 ft above the pavement surface. Compute the design curve length for the year 2030. A. 1178.02 В. 1032.09 C. 974.12 D. 980.25
An equal-tangent vertical curve connects a +3.2 % and a -1.1 % grade. The PVI is at station 100+20 and elevation 950 ft and the PVT is at station 105+20. Answer the following 5 questions Question 3 to Question 7. The station of the PVC is at: sta 93+20 sta 95+20 sta 97+20 sta 99+20 sta 105+20
QUESTION 3 A vertical curve is needed to join to tangents; G₁-5% and G₂-2%. Assuming the worst case scenario for braking, and the AASHTO recommended values for deceleration and perception-reaction time, calculate the minimum length of curve (ft) needed to satisfy the safety criteria. The design speed is 50 mph.
A horizontal curve is to be designed to connect two tangents on a rural principal arterial with a design speed of 110 km/h. The station of the BC is 545+13.65. It is expected that an existing building will be located at a distance of 15 m from the centerline of the inside lane. Determine the minimum radius that will satisfy the sight distance and superelevation requirements.