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intelligent transport systems
Introduction
ITS applications
• Indian traffic can benefit
from several possible ITS
applications. One set of
applications is for traffic
management.
• Intersection control
• Incident detection
• Vehicle classification
• Monitoring
• Revenue collection
• Historical traffic data
ITS applications
• Another set of applications
can aid the commuters on
roads.
• Congestion maps and travel
time estimates
• Public transport
• Information about arrival of
public transport
• Individual vehicle
management - Getting
information
• Accident handling Emergency
Technique used
There are several existing modes
of sensing:
• static sensing, where sensors
are statically placed on the
road,
• mobile sensing, where
sensors are placed in the
moving vehicles
• hybrid sensing, where both
in-vehicle
and on-road infrastructure are
needed
Technique used
Static sensing: techniques
• Loops and magnetic sensors -

•

•

•

Vehicle detection and counting using
magnetic sensors or loops under the
road surface, and deployed systems
Images and videos - Video
surveillance to monitor traffic states
and detect incidents and hotspots is
fairly common gives a comprehensive
survey of the major computer vision
techniques used in traffic applications.
Acoustic sensors - Some recent
research is being done to use acoustic
sensors for traffic state estimation,
especially in developing regions,
where traffic being chaotic is noisy .
RF sensors - Wireless radios placed
across the road have communication
signals affected by vehicular
movement in between..
Technique used
Mobile sensing: techniques
• GPS on public transport or fleet
vehicles – Many public transport and
fleet companies have GPS installed in
their vehicles for real time tracking..

• GPS on Smartphone's - With the

recent proliferation of smart phones,
Smartphone GPS is being studied for
hotspot detection and travel time
estimation, after handling noise in
GPS readings

• Sensors on Smartphone's - Other

than GPS, smart phones also have
sensors that can provide interesting
information. [28] solved the problem
of reorienting the accelerometer of a
Smartphone to match the car axes.
Technique used
• Using ordinary phones - Some researchers have tried using ordinary cell
phones, instead of Smartphone's, for traffic sensing. Localizing ordinary
phones based on only cellular tower and Wi-Fi information and adding
sensors to ordinary phone hardware are two main research focus in this
area This sensing using phones, popularly called crowd sourcing has
related research on privacy and power issues, as these would affect user
participation.
•

Specialized hardware on vehicles - Some researchers have used
specialized hardware in vehicles. which detects road anomalies and which
tracks stolen properties are examples. which uses ultrasound transceivers
to find empty parking spaces and which calculates fuel usage, are
applications for individual vehicle owners using customized hardware.

• Social networking- took a fresh perspective of getting information from
crowd through blogs posted via smart phones.
Technique used
Hybrid sensing: techniques There are a set of techniques that use
both static infrastructure and mobile sensors to gain traffic
information.
(1) Teledensity - Cell phone operators can give approximate vehicle
densities in the neighborhood of a given cell tower, based on
subscribers seen at that tower. There are commercial systems and
research efforts are based on this.
(2) Bluetooth – it is a system where roadside Bluetooth detectors
sense Bluetooth radios in phones inside vehicles. Correlating the
sensed Bluetooth addresses among different detectors, gives travel
times of the vehicles between the detectors.
(3) RFID - Similar systems are being explored using RFID tags on
vehicles and RFID readers on roads [
The I.T.S. architecture
• Having discussed a set of intended
applications and several possible
sensing methods, the next question
to ask is how to put it all together
for Indian cities, so that the
maximum possible number of
applications are handled with ease
and accuracy. Should we prioritize
the list of applications, so that
some are given higher importance
than the others? How should we
select what sensing methods to
use? What should be the overall
system architecture, including the
communication model needed to
gather sensed and/or computed
data from the roads and dissipate
information back to commuters on
the road?
The I.T.S. architecture

Choice of applications –
• The traffic applications currently available are rudimentary,
with periodic updates gathered from traffic police broadcast
on FM radios . There are a few route planners that give bus
and train plans, but the plans are static, without considering
the current congestion levels on different roads. The junctions
where the major roads intersect one another are shown by
red squares and those where the minor roads intersect the
major roads are shown by blue dots.
The I.T.S. architecture

Choice of sensing method • Participatory sensing data is inherently noisy . Also probe
vehicles might not be present at a given intersection at all
times. Such sensing methods can thus be used for
applications like travel time estimates and congestion maps to
be disseminated to commuters, which can tolerate
aperiodicity and noisiness. Applications like traffic light
control on the other hand, need dedicated static sensors on
the road that give highly accurate and strictly periodic
updates about traffic conditions.
The I.T.S. architecture

Choice of communication • Given a set of chosen applications and a set of sensing
methods to handle them, how should the communication
model be? For static sensors, the sensed data need to be
transferred to traffic control rooms. At present, out of 160
cameras in Bangalore, connected to central traffic control
room by leased lines, at most 90 cameras send data at any
given time , because of problems in the wired connections.
Instead of this star topology, will a tiered architecture help,
where video feeds from a subset of roads are processed at
local control rooms, before the information is passed to
central control?
Benefits of ITS
• Safety—Road crashes cause suffering and loss of life as well as
costing the nation in the order of 6 billion a year. Many collisions
occur due to the stop-start nature of traffic in congested areas. ITS
technologies can be used to smooth traffic flows and reduce
accidents. Information provided through ITS can be used to direct
traffic away from accidents and alert emergency services as soon as
an incident occurs.
• Productivity—Congestion lowers productivity, causes flow-on
delays in supply chains and increases the cost of business. ITS can
increase productivity by finding innovative ways to increase the
capacity of our current infrastructure.
• Environmental Performance—ITS that reduce congestion and stopstart driving can also reduce fuel consumption and greenhouse gas
emissions by around 30 per cent compared with normal driving
conditions.
Conclusion
Traffic congestion is an important problem in Indian cities.
The characteristics of Indian roads and traffic make the
problem interesting to solve. There is scope for evaluating
existing ideas in different and challenging traffic scenarios,
innovate new solutions and empirically evaluate ideas in
collaboration with public and private sectors. In this paper, we
make a small effort to put together the different ideas and
people relevant in Indian ITS, so that it gives an overview of
the problem and the available solutions and outlines a set of
open questions to answer.
references
1). Technical paper on ITS for Indian Cities
by Rijurekha Sen, Bhaskaran Raman , IIT Bombay
2). Technical paper on ITS Issues and challenges in India
by lelitha vajanakshi , asha anand , IIT Madras
3). http://asiancorrespondent.com/39640/isindia• waiting-for-its-longest-traffic jam/.
intelligent transport systems

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intelligent transport systems

  • 3. ITS applications • Indian traffic can benefit from several possible ITS applications. One set of applications is for traffic management. • Intersection control • Incident detection • Vehicle classification • Monitoring • Revenue collection • Historical traffic data
  • 4. ITS applications • Another set of applications can aid the commuters on roads. • Congestion maps and travel time estimates • Public transport • Information about arrival of public transport • Individual vehicle management - Getting information • Accident handling Emergency
  • 5. Technique used There are several existing modes of sensing: • static sensing, where sensors are statically placed on the road, • mobile sensing, where sensors are placed in the moving vehicles • hybrid sensing, where both in-vehicle and on-road infrastructure are needed
  • 6. Technique used Static sensing: techniques • Loops and magnetic sensors - • • • Vehicle detection and counting using magnetic sensors or loops under the road surface, and deployed systems Images and videos - Video surveillance to monitor traffic states and detect incidents and hotspots is fairly common gives a comprehensive survey of the major computer vision techniques used in traffic applications. Acoustic sensors - Some recent research is being done to use acoustic sensors for traffic state estimation, especially in developing regions, where traffic being chaotic is noisy . RF sensors - Wireless radios placed across the road have communication signals affected by vehicular movement in between..
  • 7. Technique used Mobile sensing: techniques • GPS on public transport or fleet vehicles – Many public transport and fleet companies have GPS installed in their vehicles for real time tracking.. • GPS on Smartphone's - With the recent proliferation of smart phones, Smartphone GPS is being studied for hotspot detection and travel time estimation, after handling noise in GPS readings • Sensors on Smartphone's - Other than GPS, smart phones also have sensors that can provide interesting information. [28] solved the problem of reorienting the accelerometer of a Smartphone to match the car axes.
  • 8. Technique used • Using ordinary phones - Some researchers have tried using ordinary cell phones, instead of Smartphone's, for traffic sensing. Localizing ordinary phones based on only cellular tower and Wi-Fi information and adding sensors to ordinary phone hardware are two main research focus in this area This sensing using phones, popularly called crowd sourcing has related research on privacy and power issues, as these would affect user participation. • Specialized hardware on vehicles - Some researchers have used specialized hardware in vehicles. which detects road anomalies and which tracks stolen properties are examples. which uses ultrasound transceivers to find empty parking spaces and which calculates fuel usage, are applications for individual vehicle owners using customized hardware. • Social networking- took a fresh perspective of getting information from crowd through blogs posted via smart phones.
  • 9. Technique used Hybrid sensing: techniques There are a set of techniques that use both static infrastructure and mobile sensors to gain traffic information. (1) Teledensity - Cell phone operators can give approximate vehicle densities in the neighborhood of a given cell tower, based on subscribers seen at that tower. There are commercial systems and research efforts are based on this. (2) Bluetooth – it is a system where roadside Bluetooth detectors sense Bluetooth radios in phones inside vehicles. Correlating the sensed Bluetooth addresses among different detectors, gives travel times of the vehicles between the detectors. (3) RFID - Similar systems are being explored using RFID tags on vehicles and RFID readers on roads [
  • 10. The I.T.S. architecture • Having discussed a set of intended applications and several possible sensing methods, the next question to ask is how to put it all together for Indian cities, so that the maximum possible number of applications are handled with ease and accuracy. Should we prioritize the list of applications, so that some are given higher importance than the others? How should we select what sensing methods to use? What should be the overall system architecture, including the communication model needed to gather sensed and/or computed data from the roads and dissipate information back to commuters on the road?
  • 11. The I.T.S. architecture Choice of applications – • The traffic applications currently available are rudimentary, with periodic updates gathered from traffic police broadcast on FM radios . There are a few route planners that give bus and train plans, but the plans are static, without considering the current congestion levels on different roads. The junctions where the major roads intersect one another are shown by red squares and those where the minor roads intersect the major roads are shown by blue dots.
  • 12. The I.T.S. architecture Choice of sensing method • Participatory sensing data is inherently noisy . Also probe vehicles might not be present at a given intersection at all times. Such sensing methods can thus be used for applications like travel time estimates and congestion maps to be disseminated to commuters, which can tolerate aperiodicity and noisiness. Applications like traffic light control on the other hand, need dedicated static sensors on the road that give highly accurate and strictly periodic updates about traffic conditions.
  • 13. The I.T.S. architecture Choice of communication • Given a set of chosen applications and a set of sensing methods to handle them, how should the communication model be? For static sensors, the sensed data need to be transferred to traffic control rooms. At present, out of 160 cameras in Bangalore, connected to central traffic control room by leased lines, at most 90 cameras send data at any given time , because of problems in the wired connections. Instead of this star topology, will a tiered architecture help, where video feeds from a subset of roads are processed at local control rooms, before the information is passed to central control?
  • 14. Benefits of ITS • Safety—Road crashes cause suffering and loss of life as well as costing the nation in the order of 6 billion a year. Many collisions occur due to the stop-start nature of traffic in congested areas. ITS technologies can be used to smooth traffic flows and reduce accidents. Information provided through ITS can be used to direct traffic away from accidents and alert emergency services as soon as an incident occurs. • Productivity—Congestion lowers productivity, causes flow-on delays in supply chains and increases the cost of business. ITS can increase productivity by finding innovative ways to increase the capacity of our current infrastructure. • Environmental Performance—ITS that reduce congestion and stopstart driving can also reduce fuel consumption and greenhouse gas emissions by around 30 per cent compared with normal driving conditions.
  • 15. Conclusion Traffic congestion is an important problem in Indian cities. The characteristics of Indian roads and traffic make the problem interesting to solve. There is scope for evaluating existing ideas in different and challenging traffic scenarios, innovate new solutions and empirically evaluate ideas in collaboration with public and private sectors. In this paper, we make a small effort to put together the different ideas and people relevant in Indian ITS, so that it gives an overview of the problem and the available solutions and outlines a set of open questions to answer.
  • 16. references 1). Technical paper on ITS for Indian Cities by Rijurekha Sen, Bhaskaran Raman , IIT Bombay 2). Technical paper on ITS Issues and challenges in India by lelitha vajanakshi , asha anand , IIT Madras 3). http://asiancorrespondent.com/39640/isindia• waiting-for-its-longest-traffic jam/.