Traffic information service based on vehicle ad hoc network
1. TRAFFIC INFORMATION SERVICE BASED ON VEHICLE ADHOC NETWORK
Introduction:
The monitoring and control of city traffic is becoming a major problem in many
countries. With the ever increasing number of vehicles on the road, the Traffic Monitoring
Authority has to find new methods of overcoming such a problem. We propose a traffic
information service for which traffic data are collected over ad-hoc networks from neighbor
vehicles, processed to minimize the data size, and eventually provided to its destination. The
proposed scheme simply relies on the existing navigation systems in vehicles and wireless
communication devices for vehicle-to-vehicle communication, rather than on a separately
established server. It allows collecting and analyzing traffic status of large areas without
incorporating separated monitoring systems, e.g., probe cars and enables to provide accurate
traffic information to drivers in timely manner.
Existing System:
Present Traffic Light Controllers (TLC) is based on microcontroller and microprocessor.
These TLC have limitations because it uses the pre-defined hardware, which is functioning
according to the program that does not have the flexibility of modification on real time basis.
Due to the fixed time intervals of green, orange and red signals the waiting time is more and car
uses more fuel.
Proposed System:
This project “Intelligent traffic controller” makes use of Networks along with Embedded
Technology. Thus, optimization of traffic light control increases road capacity and traffic flow,
and can prevent traffic congestions. This is a unique feature of this project which is very useful
to car drivers to take an alternate route in case of congestion.
The main objective for this project is to design a program and implement hardware of
intelligent traffic light system suitable for real life implementations. This project also aims to
design a safe and efficient traffic flow, to assign the right way and minimizes the delay or
2. waiting time at road. The information about congestion on road or possible alternate routes can
also be informed to car drivers through information collecting centre.
The service scenario is as follows: (1) Vehicle C is on the way to the destination; (2)
Vehicle A has met with jammed area. Since vehicle A went through the jammed area, it has
obtained the traffic information and update that in the information collecting centre (3) Vehicle B
hasn’t met with any traffic jam in its way. The traffic information that vehicle B has obtained is
likely to be normal since it did not pass through the jammed area, it has obtained the traffic
information and update that in the information collecting centre (4) Vehicle A, B, and C
regularly transmit the traffic information on their respective paths; (5) If information collecting
devices are incorporated on the road, they can serve to retrieve, process, and regularly transmit
the traffic information to users; (6) Based on the delivered information from vehicle A and B,
vehicle C can be aware of the traffic jam on the path of vehicle A in advance; and thus, (7)
Vehicle A can choose the right path avoiding the heavy traffic.
BLOCK DIAGRAM:
CAR A:
Power
Supply
LCD
8051
Key for Traffic
Intimation
Micro
Controller
MAX
232
Zigbee
3. CAR B:
Power
Supply
LCD
8051
Key for Traffic
Intimation
Micro
Controller
MAX
232
Zigbee
CAR C:
Power
Supply
LCD
8051
Key for Traffic
Intimation
Micro
Controller
MAX
232
Zigbee
