Ranchi University 2010-2nd Sem B.E Civil Engineering III BTechRegular s, / TRANSPORTATION ENGINEERING ( - Question Paper

III B. Tech II Semester Regular Examinations, Apr/May 2010
TRANSPORTATION ENGINEERING
(Civil Engineering)
Time: three Hours Max Marks: 80
ans Any 5 ques.
All ques. Carry Equal Marks
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1. (a) Briefly outline the necessity for highway planning. [8 M]
(b) Derive an expression for calculating the overtaking sight distance on a
highway. [8 M]
2. (a) discuss the summit and valley curves and the different cases when these
are formed while 2 various gradients meet. [8 M]
(b)The design speed of a highway is 90 Kmph. There is a horizontal curve of
radius 190 m on a certain locality. compute the superelevation needed to
maintain this speed. If the maximum superelevation of 0.07 is not to be
exceeded, compute the maximum allowable speed on this horizontal curve
as it is not possible to increase the radius. Safe limit of transverse coefficient
of friction is 0.15. [8 M]
3. (a)Enumerate the various methods of carrying out traffic quantity studies.
Indicate the principle of every. [8 M]
(b)What are the different kinds of traffic accidents and discuss the different
measures to prevent accidents. [8 M]
4. (a)Explain at grade intersections, the advantages and limitations. [8 M]
(b) How are the traffic signal times decided based on the Webster's method.
[8 M]
5. (a) elaborate the various kinds of rails. discuss the defects and remedies of
rails used in railways. [8 M]
(b)Derive an expression for finding the cant, when the train moves round the
curve. [8 M]
6. (a) discuss briefly various kinds of gradients in railways. [8 M]
(b) compute the maximum permissible speed on a curve at high speed
broad gauge track having the subsequent particulars
Degree of curve = 10; Amount of superelevation = eight cm; Length of
transition curve =130m. [8 M]


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Code No: V3206/R07
7. (a) Write a note on factors affecting selection of site for Air port. [8 M]
(b)Draw wind rose diagram and discuss the features. [8 M]
8. Write short notes on the subsequent.
(a) Traffic Rotary
(b) Equivalent Single wheel load
(c) kinds of Signals in Railways
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Earning:   Approval pending.