PIS meaning in Computer Technology ?

What is Passenger Information System mean?

A passenger information system or passenger information display system is an automated system for supplying users of public transport with information about the nature and state of a public transport service, through visual, voice or other media. They are also known as Customer Information Systems and Operational Information Systems. Among the information provided by such systems, a distinction can be drawn between:

Static or schedule information, which changes only occasionally and is typically used for journey planning prior to departure.Real time information, derived from automatic vehicle location systems, which changes continuously as a result of real-world events and is typically used during the course of a journey (primarily how close the service is running to time and when it is due at a stop, but also incidents that affect service operations, platform changes etc.).

Static information has traditionally been made available in printed form though route network maps and timetable booklets at transit stations. However most transit operators now also use integrated passenger information systems providing either schedule-based information through a journey planner application or schedule-based information in combination with real-time information.

Real time information is an advance on schedule-only information, which recognises the fact that public transport services do not always operate exactly according to the published timetable. By providing real time information to travellers, they are better able to conduct their journey confidently, including taking any necessary steps in the event of delays. This helps to encourage greater use of public transport, which for many countries is a political goal.

Real-time information is provided to passengers in a number of different ways, including mobile phone applications, platform-level signage, and automated public address systems. It may include both predictions about arrival and departure times, as well as information about the nature and causes of disruptions.

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