JUP  078

*JUP078*

First Semester M.E. (Civil) Degree Examination, February 2014 (Highway Engineering) (Semester Scheme) 2K8 HW 103 : TRAFFIC ENGINEERING Time : 3 Hours

Max. Marks : 100

Instructions : 1) Answer any five full questions. 2) Missing data may be suitably assumed. 1. a) What are the objectives of conducting traffic volume studies ? Mention any one method of carrying out classified volume studies including turning movements at an intersection of cross roads. With a neat flow diagram, explain how the results of this study are tabulated ? 10 b) Briefly explain the physical characteristics of the road users.

10

2. a) What are the various objectives of carrying out speed and delay studies ? Explain the procedure of this study by floating car method and method of analyzing the data and presentation of results. 10 b) What are the objectives of conducting origin and destination studies ? Explain home interview method and presentation of O and D data. 10 3. a) Explain the following : i) PCU ii) PIEV theory

10

b) Explain the various steps involved in traffic accident studies.

10

4. a) Explain the various aspects investigated during parking studies.

10

b) Given the following mean data from six runs by the floating car method on 3 Km road stretch . Determine the flow, journey speed and running speed in both directions. 10 V

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P.T.O.

*JUP078*

JUP  078 5. a) Explain the following : i) Measures for the reduction in accident rates ii) One way streets.

10

b) Mention and explain the classification of traffic signals. 6. a) With a neat sketch explain a rotary intersection.

10 10

b) The average normal flow of traffic on cross roads A and B during design speed are 450 and 350 PCU per hour, the saturation flow values on these roads are estimated as 1200 and 900 PCU per hour respectively. The all red time required for pedestrian crossing is 15 secs. Design two phase traffic signal. 10 7. a) Explain the advantages and disadvantages of grade separated intersections. Write a note on interchange ramps. 10 b) Explain the general types of co-ordination of signals for road network. 8. Explain the following :

10 (4×5=20)

i) Off-street parking ii) Highway lighting iii) Air and noise pollution due to traffic iv) Road markings. ________________

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