project synopsis
DESCRIPTION
Problem are and relevant issues discussed.TRANSCRIPT
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Project SynopsisRoad signalling system for traffic movement management
SANJEET KUMARL&T BIS XI BatchIndian Institute of Technology, Madras
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Problem Area: The Indian Scenario
• Most of the traffic signal controllers installed across the Country are first generation, fixed time controllers
• Only two cities (New Delhi and Pune) has the Area Traffic Control System (ATCS)– New Delhi - 63 Junction (imported from UK)– Pune - 38 Junctions (developed by C-DAC)
Even this is a very small percentage
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Disadvantages of Fixed time traffic signal controllers
• The timing plans are based on historical data, which may not be an accurate reflection of typical conditions
• The timing plans rapidly age and the benefits achieved decrease
• The system cannot respond to unpredictable events
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Result of fixed time controller
• Wasted Green time• Unresolved Queues• Minor Accidents at the intersection
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Types of Signal Control logic
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Challenges in implementing an Actuated traffic control on Indian roads
• Traffic is not lane following• A vehicle entering the approach (upstream) on
a particular lane need not maintain the same at the intersection
• High mix of traffic• Uncontrolled side roads and on-street parking• Obtaining a correct measure of traffic count is
highly complex • Data loss due to power failure• Network failure• Availability of funds
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Homogeneous, lane following
traffic
Typical flow on Indian Road
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Typical Indian Road Condition
• There is not, physically, as much road space and roads are not always planned and designed for efficient traffic use
• The roads are called upon to perform a wide variety of functions which includes non-traffic use – for example, the co-existence of
market stalls and through traffic on the same road space
• Segregated footpaths are often poorly provided or used for other purposes, forcing pedestrians to use the roadway
• Vehicle growth rates are very high• Vehicle mix can cover a wide range of
types and characteristics, from bicycles and bullock-carts to articulated trucks
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On Street Parking
A typical parking pattern seen on Indian Roads
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Addressing the Challenges : Systems Available
• Area Traffic Control System (implemented in INDIA)– A Composite Signal Control Strategy for Indian Roads, Indian
Highways, August 2006 issue of The Indian Roads Congress, New Delhi
• Urban Traffic control System– Optimizing Networks of Traffic Signals in Real Time-The SCOOT Method,
IEEE Transactions on Vehicular Technology, Feb 1991
• Area-wide Real time traffic control System– The Area-wide Real-Time Traffic Control (ARTC) System: A New Traffic
Control Concept, IEEE Transactions on Vehicular Technology, May 1993
• Intelligent traffic Control System
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Thank You
SANJEET KUMAR