LAST DATE FOR SUBMISSION - 09.04.2013
1. At an
intersection formed by meeting of North-South road and East- West road, a three
phase signal with xclusive right turning phase from North and South is to be
designed . Each of the North and South approaches have exclusive right turning lane & two lanes of 3.50 m for straight and left flows. The radius of
right turning is 20m, Right turning from East and West is not permitted at the intersection.
The total width of East –West Road is 12m. The traffic flow in pcu/hr is as
follows:
|
From
|
North
|
East
|
South
|
West
|
|||||||||
|
To
|
E
|
S
|
W
|
S
|
W
|
W
|
N
|
E
|
N
|
E
|
|||
|
Flow
|
60
|
600
|
150
|
70
|
400
|
160
|
600
|
160
|
80
|
500
|
|||
Assume amber
of 3 seconds and inter green time of 4 seconds. Give the phasing diagram and
timing diagrams for each phase adopting Webster’s method of isolated signal
design.
2. With
the help of a neat diagram indicating the various geometric elements of a
traffic rotary, explain about the design elements of a rotary intersection
3. What is a wind
rose diagram? Explain how a wind rose diagram is to be prepared
assuming some hypothetical wind
data.
4. With the help
of a typical diagram, explain the components of a permanent way and also
discuss about their functions in the railway track.
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