Area Traffic Control System     Camera Surveillance System     VEHICAL LOOP DETECTION SYSTEM

Area Traffic Control System

The Area traffic control system (ATCS) is fully adaptive road traffic control system that use data from the vehicle detectors and optimize traffic signal setting in an area to reduce vehicle delays and stop. The control system will operate in real time with the capacity to calculate the optimal cycle time, effective green time ratios, and change interval for all system traffic signal controllers are connected to it.

Major Building Blocks
  • ATCS Compatible Traffic signal controller – ArTIC
  • Vehicle Detector
  • Communication network
  • ATCS Application Software
  • Database Management System
  • Central control room


Optional Blocks
  • Camera Surveillance System (CSS)
  • Wireless Messaging System (WMS)


Network control
  • Composite signal control strategy (CoSiCoSt)
  • Bi-level split optimization
  • Area optimization
  • Offset optimization
  • Stage time update in every cycle


Area traffic control system implemented in jaipur city

Graphical Displays
  • Network status
  • Junction traffic flow Animation
  • Saturation Levels
  • Online and offline Time space Diagram


Remote Control
  • Junction OFF/ON
  • Hurry Call
  • Junction forced flash


    • Stage Switching
    • Cycle Switching
    • Mode Switching
    • Network Performance
    • Error Logs


Benefits of ATCS

The ATCS would have long ranging impact on the traffic flow condition and environmental pollution in the city where it is implemented.  There would be direct benefit through:

  • Reduction in vehicle operation cost due to reduction in delays
  • Reduction in traffic congestion along with increase in capacity of roads and intersections resulting in improvement in level of service of the road system
  • Reduction in environmental pollution with reduced emissions at intersections
  • Reduction in noise levels

Apart from these direct benefits, there would be indirect benefit in the form of travel-time savings and accident cost savings.

Camera Surveillance System
  • IP camera dome
  • Integrated Video Detection Processor
  • DIN Rail Mounted Cabinet Interface
  • Server System
  • Storage System
  • Loop Detector Camera

Benefits of Camera Surveillance
  1. Surveillance
  2. Enforcement
  3. Discipline
  4. Regulation
  5. Law & Order
  6. Procession management

Vehical Loop Detection System
The system should be compact video detection system that delivers superior vehicle detection. It should be able to provide quality video detection in an unobtrusive package. It should able to be mounted at low height eliminating the need for special poles and mounting apparatuses. The system should have high reliability.

Video based vehicle based detection system should includes weather resistant, low voltage, and low power camera sensor with a built in video detection processor and an interface to Traffic Controller.

Camera should be mounted on the pole and positioned and oriented for the desired field of view. Virtual Loop (Detection zone) can be drawn using Laptop or mouse monitor.

PICO Camera:-
Feature                                                :           1/3” color imager 752 x 582 pixel (PAL Format)
Lens                                                     :           3 mm or 8 mm fixed focal length Lens
Enclosure Connection                         :           Molded Polycarbonate housing
                                                                                Four Terminal 6 ways
                                                                        2 x DC Power
                                                                        2 x Differential Control
                                                                        2 x Differential Video
Power I/P                                            :           24V DC, 5W typical, 6W max.
Output                                                 :           Differential Video


PCC Module:-
Features                                              :          DIN Rail mounting 16 opto isolated, open collector     
                                                            :          Output, Mouse monitor setup,
                                                            :          16 LED for o/p Indication
Enclosure Connection                         :           Four terminal- 5 way for cam Pico
                                                            :          2 x Differential Control
                                                            :          2 x Differential Video
                                                            :          1 x Ground
                                                            :          Four terminal- 5 way for signal o/p
                                                            :          Power I/P 24V DC
                                                            :          RJ45 Ethernet port
Power I/P                                            :           24V DC, 5W typical, 7W max.
Output                                                 :           5 Channel PAL video
                                                            :          16 opto isolated, Fail safe, open
                                                            :          Collector O/P(30V DC@50mA max.)

Generic Specification:-

For each approach of a signalized junction One PICO camera is required and one PCC module is required.
For a 4 arm Junction 4 PICO camera and 1 PCC module is required.
For a 3 arm Junction 3 PICO camera and 1 PCC module is required.

PCC Module can support Maximum 4 PICO Camera only. 

Specification for an Integrated Video Detection Processor and DIN Rail Mounted Cabinet Interface

1.        General

This specification sets forth the minimum requirements for a system that detects vehicles on a roadway using only video images of vehicle traffic.

1.1          System Hardware

The video detection system shall consist of a single integrated camera with video detection processor (VDP), a cabinet interface controller (CIC) which mounts on a standard DIN rail in a traffic control cabinet.

1.2          System Software

The system shall include software that detects vehicles in multiple lanes using only the video image. Detection zones shall be defined using only an on-board video menu and a pointing device to place the zones on a video image. Up to 8 detection zones per integrated camera shall be available. A separate computer shall not be required to program the detection zones.

2.        Functional Capabilities

2.1          The VDP shall process video from the integrated camera. The video shall be in NTSC or PAL composite video format and shall be digitized and analyzed in real time.  

2.2          The VDP shall detect the presence of vehicles in up to 8 detection zones per integrated camera system. A detection zone shall be approximately the width and length of one car.

2.3          Detection zones shall be programmed via an on-board menu displayed on a video monitor and a pointing device connected to the CIC. The menu shall facilitate placement of detection zones and setting of zone parameters or to view system parameters. A separate computer shall not be required for programming detection zones or to view system operation.

2.4          The VDP shall store up to three different detection zone patterns. The VDP can switch to any one of the three different detection patterns within 1 second of user request via menu selection with the pointing device.  Each configuration can be uniquely labeled for identification and the current configuration identifier is displayed on the monitor.

2.5          The VDP shall detect vehicles in real time as they travel through each detector zone.

2.6          The CIC shall have an RJ45 Ethernet port and a Type-B USB port for communications with an external computer for diagnostic and remote management applications.

2.7          The VDP shall accept new detector patterns from an external computer through the Ethernet or USB port on the CIC when the external computer uses the correct communications protocol for downloading detector patterns.  A Windows™ based software designed for local or remote connection and providing video capture, real-time detection indication and detection zone modification capability shall be provided with the system.

2.8          The VDP shall send its detection patterns to an external computer through the Ethernet or USB port on the CIC upon request when the external computer uses the appropriate communications protocol for uploading detector patterns. 

2.9          VDP and CIC communications shall be accommodated by methods using differential signals to reject electrically coupled noise.

2.10        The system shall be capable of automatically detecting a low-visibility condition such as fog and respond by placing all defined detection zones in a constant call mode. The system shall automatically revert to normal detection mode when the low-visibility condition no longer exists.

3.        Vehicle Detection

3.1          Eight detection zones shall be supported and each detection zone shall be user definable in size and shape to suit the site and the desired vehicle detection region.

3.2          A single detection zone shall be able to replace multiple inductive loops and the detection zones shall be OR'ed as the default or may be AND'ed together to indicate vehicle presence on a single phase of traffic movement.

3.3          Placement of detection zones shall be done by using only a pointing device, and a graphical interface built into the VDP and displayed on a video monitor, to draw the detection zones on the video image from the video camera. No separate computer shall be required to program the detection zones. Detection zones shall be drawn on live video from the video camera.

3.4          A minimum of 3 detection zone patterns shall be saved within the VDP memory. The VDP's memory shall be non-volatile to prevent data loss during power outages.  The VDP shall continue to operate (e.g. detect vehicles) using the existing zone configurations even when the operator is defining/modifying a zone pattern.  The new zone configuration shall not go into effect until the configuration is saved by the operator.

3.5          The selection of the detection zone pattern for current use shall be done through a local menu selection or remote computer via Ethernet or USB port on the CIC.  When a new configuration pattern is selected, it shall become active within 1 second.

3.6          When a vehicle is detected crossing a detection zone, confirmation of detection is with a distinct visual indication on the video overlay.

3.7          The VDP system shall provide 16 channels of vehicle presence detection per system through a terminal block on the CIC.

3.8          Each VDP camera shall be able to define up to 8 detection output channels and be mapped to any 8 of 16 CIC outputs.

3.9          The VDP shall provide dynamic zone reconfiguration (DZR) to enable normal detector operation of existing channels except the one where a zone is being added or modified during the setup process.  The VDP shall output a constant call on any detection channel corresponding to a zone being modified.

3.11        Up to six detection zones shall be capable to count the number of vehicles detected.  The count value shall be internally stored for later retrieval through the Ethernet or USB port on the CIC.  The data collection interval shall be user definable in periods of 10 or 20 seconds or 1, 5, 15, 30 or 60 minutes.

4.        CIC Module

4.1          The CIC shall be mounted on industry standard DIN rail for flexible mounting.

4.2          The CIC shall support up to four (4) VDP integrated camera systems.

4.3          The CIC shall support up to 16 open collector outputs and can be controlled by any VDP camera.

4.4          The CIC shall operate in a temperature range from -34°F to +165°F  (-34°C to +74°C) and a humidity range from 0% to 95% relative humidity, non-condensing.

4.5       The CIC shall be powered by 24 VDC, 200 mA maximum.

4.6          The VDP shall utilize non-volatile memory technology to enable the loading of modified or enhanced software through the Ethernet or USB port on the CIC without modifying the VDP hardware.

4.7          The CIC shall include one BNC video output providing real time video output with overlay detection information that can be routed to other devices.

4.8          The CIC shall also include 4 BNC video outputs providing raw, real time video from each of 4 VDP cameras with no overlays.

4.9          The CIC shall have terminal blocks for DC power, communication to the VDP camera and open collector outputs.

5.        Video Detection Processor / Camera Module

5.1          The integrated camera shall produce a useable video image of the bodies of vehicles under all roadway lighting conditions, regardless of time of day. The minimum range of scene luminance over which the camera shall produce a useable video image shall be the minimum range from nighttime to daytime, but not less than the range 0.5 lux to 10,000 lux.

5.2          The imager luminance signal to noise ratio (S/N) shall be more than 48 dB.

5.3          The imager shall have >400 TV lines of resolution.

5.4          The VDP electronics shall include automatic gain control (AGC) to produce a satisfactory image at night.

5.5          The VDP camera shall be available in either normal (12mm) or wide angle (3mm) lens.

5.6          The VDP camera shall be powered by 24 VDC, 500 mA maximum.

5.7          The VDP shall be housed in a weather-tight sealed enclosure and shall be made of molded polycarbonate material and conform to rating of IP67. 

5.8          The VDP enclosure shall be equipped with a sunshield.  The camera enclosure with sunshield shall be less than 8 inches wide, 6 inches high and 5 inches deep; and shall weigh less than 2 pounds.

5.9          When mounted outdoors in the enclosure, the VDP shall operate satisfactorily in a temperature range from -34°F to +165°F (-34oC to +74oC) and a humidity range from 0% RH to 100% RH.