Traffic Light System

This is a microcontroller-based flexible system which supports up to a 5 way junction having a maximum of 20 vehicle phases, 10 walk phases and provides the facility to configure up to 16 phase combinations. System is configured by using the user interface and it runs according to the programmed configuration in a day with separate green time setting for weekdays, Saturday, Sundays/Holidays. The system can be reconfigured on-site, without interrupting the operation of traffic lights. In addition to above mentioned features, wireless countdown module, manual overriding unit, Green conflict detection unit and user friendly interface software add more value to the new system.

Features Implemented

Traffic Light System

  • Flexible ,Reliable, User-friendly and Easily customized with minimal break downs
  • Cost Effective
  • Controller cycles through all stages in a preprogrammed sequence
  • Programming Facility via RS232 Interface
  • Facility to include 16 stages (30 Phase combinations)
  • On line reconfiguration without interrupting present operation
  • No requirement of a bulk battery backup since system configuration parameters are stored in non volatile memory (NVRAM)
  • Manual Overriding Facility
  • Count down modules
  • User friendly interface software
  • Facility to configure the phase/stage assignments on each time zone
  • Green time can be set separately for weekdays, Saturday, Sundays/Holiday
  • Amber and Red-Amber time adjustments can be performed according to user requirements
  • Two protection passwords could be set for the system either by administrator or by user
  • If required real time clock of the system can be adjusted
  • Facility to set Holidays for one year