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V Semester B.E. (Civil) Degree Examination, Dec. 2014/Jan. 2015 (Y2K6 Scheme) CE-5.04 : TRANSPORTATION ENGINEERING Time : 3 Hours

Max. Marks : 100

Instructions : 1) Answer compulsory question no. 1 from Part A, any three full questions from Part B and any two full questions from Part C. 2) Assume missing data suitably. PART – A 1. a) Fill in the blocks.

(8×1 = 8)

i) Indian Road development committee was appointed by the government with M.R. Jaykar as Chairman, in the year _____________ ii) The conference of Chief Engineers held in 1943 finalized the first twenty year road development plan for India called ___________ iii) In the second road development plan (1961-81) the road plan target in km/ hundred sq. km area was ______________ iv) As per IRC standards the maximum allowable width of vehicle is ____ m. v) In case of benefit cost ratio method, in order to justify the proposed improvement, the ratio should be _______________ vi) The minimum spacing between the vehicles depends on their speed and is given by empirical formula ________________ vii) Gradients are divided into _____________ categories. viii) Recommended values of camber for cement concrete surface in areas of heavy rainfall is ________________ b) Define the following. i) Super elevation ii) Camber iii) Gradient iv) Cross wind component v) Wind coverage vi) Normal landing case.

(6×2 = 12)

P.T.O.

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PART – B 2. a) Compare the different modes of transportation for their relative merits and demerits.

8

b) ‘Macadam’’s method of road construction is more scientific.’ Justify this statement with sketch.

8

3. a) Explain the various steps followed in the realignment project.

8

b) Road links A, B and C are to be constructed during a five year plan period. Suggest the order of priority for phasing the road construction programme based on maximum utility approach. Assume utility units suitably and use the following data. Road Length Link Kms

8

No. of towns/villages served with Population range

Productivity served in 1000 T

<5000

5001-10,000

10,001-20,000

>20,000

Agricultural

Raw Material

A

75

34

16

10

04

90

20

B

40

22

10

06

02

70

15

C

50

15

06

06

05

60

20

4. a) Explain briefly the salient features of Third 20 year road development plan in India.

8

b) The speed of overtaking and over taken vehicles are 80 kmph and 64 kmph respectively on a two way traffic. If the average rate of acceleration of over taking vehicle is 3.8 kmph per second. Calculate the safe over taking sight distance and minimum length of overtaking zone.

8

5. a) With the help of neat sketches, explain the situation when restriction to sight distance occurs on highways.

8

b) A two lane pavement on a NH has a curve of radius 400 m. Determine the length of transition curve making suitable assumptions.

8

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6. a) Mention and explain the various methods of economic analysis.

8

b) Find the unit vehicle operation cost for a passenger car for the following data.

8

i) Distance between two towns-40 Km ii) Operating speed 30 Kmph iii) Gradient-3% iv) Pavement condition-poor v) Time cost of vehicle – Rs. 8 per vehicle hour vi) 10 spots with no standing delay vii) No. of spots where speed reduced to 20 Kmph-15 viii) Cost of petrol-Rs. 65/litre. PART – C 7. a) Explain the various factors to be considered for selection of suitable site for an airport.

8

b) The basic length of a runway is 1900 m. The airport site has an elevation of 600 m above M.S.L. and its reference temperature is +22°C. If the proposed runway grading permits an effective gradient of 0.22%, determine the actual runway length required at the site and their specifications as per standard.

8

8. a) Draw a typical cross section of runway indicating all the geometric elements.

8

b) Briefly explain the aircraft characteristics that are used in airport planning.

8

9. Write short notes on : i) Airport lighting ii) Wind rose diagram iii) Taxiway iv) Airport classification.

(4×4 = 16)

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