A road bend which deflects 80° is to be designed for a maximum speed of 100 km per hour, a maximum centrifugal ratio of 1/4 and a maximum rate to the change, of acceleration of 30 cm/sec. The curve consists of a circular arc combined with two cubic spirals. Calculate: (a) the radius of the circular arc, (b) the requisite length of transition, curve. (c) the total length of the composite curve, and
A road bend which deflects 80° is to be designed for a maximum speed of 100 km per hour, a maximum centrifugal ratio of 1/4 and a maximum rate to the change, of acceleration of 30 cm/sec. The curve consists of a circular arc combined with two cubic spirals. Calculate: (a) the radius of the circular arc, (b) the requisite length of transition, curve. (c) the total length of the composite curve, and
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
None
Transcribed Image Text:A road bend which deflects 80° is to be designed for a maximum speed of 100 km per hour, a
maximum centrifugal ratio of 1/4 and a maximum rate to the change, of acceleration of
30 cm/sec®. The curve consists of a circular arc combined with two cubic spirals.
Calculate:
(a) the radius of the circular arc,
(b) the requisite length of transition, curve.
(c) the total length of the composite curve, and
(d) the chainages of the beginning and end of transition curve, and of the junctions of the transition
curves with the circular arc if the chainage of the P.I. is 42862 metres.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
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.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning