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Reg No.: Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SIXTH SEMESTER B. TECH DEGREE EXAMINATION(S), DECEMBER 2019
Course Code: CE308
Course Name: TRANSPORTATION ENGINEERING -I

Max. Marks: 100 Duration: 3
Students are permitted to use IRC37-2012 in examination hall

PART A
Answer any two full questions, each carries 15 marks.
1 പ What are the basic requirements for an ideal highway alignment? Describe the
factors considered in finalising the alignment.
b) Define stopping sight distance. Derive an expression for stopping sight distance
on an ascending gradient.
c) Determine the super elevation required for a horizontal curve of radius 300 m

with a design speed of 80kmph under mixed traffic condition in an urban area.

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a) List out the engineering surveys conducted in fixing the alignment of a highway.
What are the different kinds of data that are collected in a detailedsurvey?

b) Determine the length of overtaking zone required for one-way traffic condition
with design speed of 100kmph. Acceleration of overtaking vehicle is
0.9m/sec’and speed of slow-moving vehicle 15 80kmph. Illustrate the details of
overtaking zone witha neat sketch.

3 a) Why are transition curves provided on a horizontal curve? What are the
requirements for an ideal transition curve? Identify the steps for determining the
length of transition curve?

b) A descending gradient of 1 in 30 meets an ascending gradient of lin 25.
Determine the length of valley curve required for a design speed of 65 kmph, to
satisfy stopping sight distance requirements.Assume coefficient of friction as
0.35. Assume data, suitably, if required.

PART B
Answer any two full questions, each carries 15 marks.

4 a) Explain the effect of various vehicular characteristics on traffic stream behaviour.
b) A flexible pavement is to be constructed with granular base and sub-base and
bituminous surfacing for a state highway in rolling terrain. The existing soil has a

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