Transportation Engineering - 2 - Dec 2014

Civil Engineering (Semester 6)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks. 1 (a) Explain camber & their types.(4 marks) 1 (b) Explain classification of road system in India as per modified Nagpur plan.(6 marks) 1 (c) Vehicle damage factor.(5 marks) 1 (d) Explain 'PIEV Theory' in traffic Engineering.(5 marks) 2 (a) A vertical summit curve is formed when an ascending gradient of 1 in 25 m another ascending gradient of 1 in 100. Find length of the summit curve to provide the required stopping sight distance for a design speed of 80 kmph.(10 marks) 2 (b) (a) What are the objects & scope of traffic engineering? Explain briefly.(5 marks) 2 (b) (b) Explain peripheral parking.(5 marks) 3 (a) Discuss following with neat sketches with respect to sub surface drainage.
i) Lowering of water table
ii) Control of seepage flow.(10 marks) 3 (b) A bridge has a liner water way of 150m across a stream whose natural water way is 220 m. If the average flood discharge is 1200m³/sec. Average flood depth is 3 m calculate afflux under the bridge.(10 marks) 4 (a) Discuss various test on aggregates for their suitability.(8 marks) 4 (b) Explain the factors affecting the selection of bridge site.(6 marks) 4 (c) What are the main objective of conducting origin & destination (O-D) studies stat at least four applications of O-D studies.(10 marks) 5 (a) Define & explain in brief the following terms related to pavement design.
i) Equivalent single wheel load.
ii) Vehicle Damage factor.
iii) Lane Distribution factor.
iv) Rigidity factor.(10 marks) 5 (b) Discuss various types of failures in rigid pavements.(10 marks) 6 (a) Draw a neat sketch of on rotary intersection state its advantages and disadvantages.(8 marks) 6 (b) State the various conflicts points. How their severity can be reduced.(8 marks) 6 (c) Explain any one test on bitumen.(4 marks)

Write short note on

7 (a) Factors to be considered while selecting a highway alignment.(5 marks) 7 (b) Difference between used in bitumen & tar.(5 marks) 7 (c) Types of bearing used in bridges.(5 marks) 7 (d) Rotary Island.(5 marks)