PARKnSECURE

Variable Message Signage

The VMS system will consist of the following equipment:

Full matrix outdoor P6 LED module and control unit in VMS with supporting structure (gantry type) at the roadside. The Pixel density will not be less than 10,000 pixels per square meter and will have minimum brightness of 5500 cd/sqm and the refresh rate will be more than 1920 Hz.

Message to be displayed on the VMS will be concise and clear as drivers driving a vehicle have to read and understand the message in a short time. Messages will have uniform structure and simple words will be used. Messages on the VMS will be expressed in English, Hindi and Regional. Messages in different language will be separately managed and automatic translation is not required.

VMS controller will have the following functions: 

Communication control, Display control, Monitoring, and Local operation. The VMS control unit will communicate with the VMS centre controller in the TMC through the fibre optic network using TCPIP or GPRS or other equivalent international protocols. Display data received from the VMS centre controller will be stored in the buffer until all the data have been correctly received without error. The operating condition of the VMS will be monitored regularly by VMS itself and the control unit. If any abnormality is detected, error signal will be issued to the VMS centre controller together with the type of error. VMS Application to communicate with VMS controller unit at roadside for message data and operating status data transmission.

Message to be displayed on the VMS will be concise and clear as drivers driving a vehicle have to read and understand the message in a short time. Messages will have uniform structure and simple words will be used. Messages on the VMS will be expressed in English, Hindi and Regional. Messages in different language will be separately managed and automatic translation is not required.