In making a survey for a new road, the intersection point of two straights was found to be inaccessible. Four points were therefore selected two on each straight (P and Q on the first straight and R and S on the second straight), and the distance between Q and R was found to be 122.20 m. The angle PQR was 169°47’40” and the angle QRS 148°22’20”. The radius of the curve is 200 m and the station of Q is at 2+818.   Answer the following questions: 1.What is the length of the back tangent?                    2.What is the stationing of the vertex?                   3.What is the stationing of the beginning of the curve?               4.What is the length of the curve? 5.What is the stationing of the end of the curve?

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 7P
Question

In making a survey for a new road, the intersection point of two straights was found to be inaccessible. Four points were therefore selected two on each straight (P and Q on the first straight and R and S on the second straight), and the distance between Q and R was found to be 122.20 m. The angle PQR was 169°47’40” and the angle QRS 148°22’20”. The radius of the curve is 200 m and the station of Q is at 2+818.

 

Answer the following questions:

1.What is the length of the back tangent?                   

2.What is the stationing of the vertex?                  

3.What is the stationing of the beginning of the curve?              

4.What is the length of the curve?

5.What is the stationing of the end of the curve?

Expert Solution
steps

Step by step

Solved in 5 steps with 2 images

Blurred answer
Knowledge Booster
Highway surveys and location
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.
Recommended textbooks for you
Traffic and Highway Engineering
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning
Fundamentals of Geotechnical Engineering (MindTap…
Fundamentals of Geotechnical Engineering (MindTap…
Civil Engineering
ISBN:
9781305635180
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Principles of Geotechnical Engineering (MindTap C…
Principles of Geotechnical Engineering (MindTap C…
Civil Engineering
ISBN:
9781305970939
Author:
Braja M. Das, Khaled Sobhan
Publisher:
Cengage Learning