Post on 27-Mar-2018
ATHIRA VENUGOPAL(B070528CE)
LIJIN K (B060461CE)
NIKHIL MENON(B060496CE)
NIKHIL SURESH(B070136CE)
SREEYESH HARIDAS (B070
One of the major aspect of urbanization: no. of vehicles on
the road
Increase in financial capacities of man leads to increase in
vehicles on the roads which leads to congestion, traffic issues
Problems related to Traffic: frequent traffic snarls,
congestion, delays in commute
Intersection Studies aims at estimating traffic scenario by
means of surveys.
Nerve centre of commercial activities in kerala
Major port; connected to other parts of the world through modes of transport
Population: 5.95 lakh, area: 94.88 sq km, population density: 6277 persons per sq km
2000 vehicles registered per month, 85% are private ones
Over crowded due to vehicles and poor infrastructure.
Vytilla junction, located on NH 47
Largest traffic junction in terms of traffic volume, spatial
parameters
Meeting point for all intercity and intra city roads
4 armed cross roads, traffic control is signalized
According to NATPAC study (2006), Vytilla junction generates
8721 PCU in the peak hour
Other factors: non availability of bus bays, various types of
encroachments, lack of adequate link roads, lack of awareness
of traffic rules by the public
Current study aims at determining the current traffic volume
situation
done by surveys
Based on the result, improvements measures can be suggested.
Data collection
Choice of survey method
Estimation of peak hour
Video survey
Analysis of the video survey
Inference
Vytilla junction visited by the team on 16/09/2010
Initial observation in terms traffic, signaling and geometry
were studied.
Adequate permission taken from Cochin Corporation and
National Highways Authority of India for survey.
Permission granted and survey date set for November.
Common technique involves employing personnel and counting the traffic volume w.r.t the various vehicle classifications in terms of Passenger Car Units (PCU)
labour intensive, requires skilled labour, proper supervision and is high on cost.
Modern day technique-install video cameras and analyse the flow of traffic.
cheap and no skilled labour required.
This method has been adopted for the estimation of traffic flow in the current study.
Morning peak hour: 8am-10am
Evening peak hour: 04:30pm-07:30pm
majority of the traffic is urban in nature with commutes to schools,
colleges, work places dominating the peak hour traffic volume
Upon the suggestion of Cochin corporation and National Highway
Authority of India, the morning and evening peak hours that we have
taken are:
Morning peak hour: 9:45 AM-10:45 AM
Evening peak hour: 04:45 PM-05:45 PM
Video camera was placed on top of the Cochin Corporation
Building, Vytilla on 09/11/2010 for estimation of traffic flow
survey was conducted in the morning and evening
Urban roads characterised by mixed traffic conditions
To make it easier, we express the capacity of roads in terms of
a common unit.
This unit is „Passenger Car Unit‟ (PCU), and each vehicle type
is converted into equivalent PCUs based on their relative
interference value.
Peak hour Traffic Volume – Morning Peak (in terms of the number of Vehicles).
Total traffic volume(morning peak): 8126 vehicles per hour
Motorized two wheelers constitutes 44%
Cars/Vans constitute 25%
Buses constitute 12%
Motorized Three Wheelers constitutes 11%
Non Motorized two wheelers constitute 0.15%.
Total Traffic Volume (morning peak hour )= 11348 PCU
Buses/Trucks constitute about 31%
Motorized Two Wheelers (24%)
Cars/Van (18%)
Motorized Three Wheelers (16%)
LCV (12%)
Non Motorized Two Wheelers constitute the least (0.05%)
Total Traffic Volume (evening peak hour) = 6264 Vehicles per Hour
motorized two wheelers dominate the traffic flow with a composition of nearly 35%
Cars/Vans which constitute 31%
Buses constitute 12%
Motorized Three Wheelers, 12%
Non Motorized two wheelers constitute the least to the traffic with a composition of just 0.35%
Total Traffic Volume (evening peak hour) = 9073 PCU
Buses/Trucks constitute about 30%
Motorized Two Wheelers (21%)
Cars/Van (18%)
Motorized Three Wheelers (16%)
LCV (14%)
Non Motorized Two Wheelers constitute the least (0.12%)
11348 PCUs for the morning peak hour and 9073 PCUs for the
evening peak hour
For the considerations of Intersection Capacities, design and
further Improvements maximum value of Traffic Volume is
adopted
Thus the traffic volume adopted for the current study is 11348
PCUs
With the results obtained from the Video Survey, the following works are proposed:
Estimation of approach-wise volume with turning movements
Check for the adequacy of the Geometric Section
Evaluation of Signal Timings
Estimation of Delays
Suggestion of Alternative Improvement measures.
Modify the Signal Timing
Possibilities for widening the roadway intersections
Grade Separation Provision after verifying the criteria given by IRC Codes
Chandra, S. and Kumar, U. (2003). “Effect of Lane Width on Capacity under Mixed Traffic Conditions in India”, ASCE Journal of Transportation, 129(2), pp 155-160.
Highway Capacity Manual 2000. Transportation Research Board, Washington D.C.
Kidwai, F.A. and Tan, M.W. (2004), “Capacity Analysis of Signalised Urban Intersection”, AWAM-2004, Universiti SainsMalaysia, Pinang, pp 9H05-1 – 9H05-7.
Maini, P. and Khan, S., (2000). “Discharge Characteristics of Heterogeneous Traffic at Signalized Intersections”. Proceedings of the Fourth International Symposium on Highway Capacity, Maui, Hawaii, pp 258-270.
Kadiyali; L.R “Traffic Engineering and Trasnport Planning”, KhannaPublishers, 2006.
National Highways Authority of India (2010). “Consultancy Services for Feasibility and Preparation of Detailed Project Report for flyovers at four junctions on NH-47, Cochin at Edapally, Palarivattom, Vytilla and Kundanoor Junctions”, Government of India, pp 20-23.
Indian Roads Congress Code 106: 1990. “Guidelines for Capacity of Urban roads in Plain Areas”, pp 07 – 10.
Department of Town and Country Planning (2009). “Development Proposals for the Kochi City Region 2031 – Volume 3”, Government of Kerala, pp 72 – 106
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