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What is a Passenger Information System (PIS)?

January 17, 2024
Passenger information display inside metro station

Passenger Information Systems (PIS) deliver real-time information about schedules, routes, delays, and other essential travel information to passengers during their journeys. By integrating a range of communication tools and display devices, PIS ensures that passengers stay well-informed, enabling them to make informed decisions and navigate their journeys efficiently.

Objectives of PIS

The primary objective of PIS is to minimize uncertainty and improve convenience for passengers. By providing up-to-date information on arrival and departure times, platform or gate changes, and potential disruptions or delays, PIS empowers passengers to plan their journeys accordingly, reducing stress and frustration associated with unexpected changes.

Safety and security are also enhanced through PIS. Transport authorities can swiftly disseminate crucial safety instructions or emergency announcements to passengers via PIS. Real-time information displayed on screens and broadcasted through audio systems enables passengers to respond appropriately, ensuring their own safety in the event of an evacuation or incident.

Moreover, PIS plays a crucial role in crowd management during peak hours or major events. By providing crowd control information and directing passengers to less congested platforms or exits, PIS optimizes the flow of people, preventing congestion and ensuring a seamless travel experience for all.

Furthermore, PIS places significant emphasis on accessibility, aiming to cater to passengers with visual or hearing impairments. PIS ensures that all passengers, regardless of their specific needs, receive the necessary information, promoting inclusivity and equal access to transportation services.

PIS Technologies

PIS harnesses various technologies to deliver information effectively.

Digital Signage and Visual Cues

Static signs, digital displays and visual cues, are commonly deployed at transport hubs, platforms, and inside vehicles, serving as clear and concise information sources for passengers. Digital displays also referred to as digital signage relay live updates, maps, and advertisements, enriching the overall passenger experience.

Smartphone Apps

In the modern era of digital connectivity, PIS has embraced mobile applications to provide real-time information directly to passengers' smartphones. Through intuitive mobile apps, passengers can access personalized journey planning, route guidance, and live updates, ensuring that they have the information they need at their fingertips. Checking for delays, planning alternative routes, or even purchasing tickets has become effortless with these mobile applications.

Audio Announcements

Audio announcements allow to bring information and warnings, ad-hoc to people in one or multiple locations.


PIS continues to evolve alongside advancing technology. Artificial intelligence (AI) and machine learning algorithms are being employed to predict travel patterns, analyze data, and improve the accuracy of information provided to passengers. This allows PIS systems to anticipate potential disruptions and proactively notify passengers, further enhancing their travel experience.

In conclusion, Passenger Information Systems (PIS) have transformed the way passengers interact with public transportation networks, offering real-time updates and personalized information. With the aim of reducing uncertainty and enhancing convenience, PIS empowers passengers to make informed decisions and navigate their journeys efficiently. By employing various communication tools and display devices, PIS ensures passengers are well-informed and equipped to handle any changes or disruptions that may arise. As technology continues to advance, PIS will continue to evolve, further optimizing the travel experience for passengers worldwide.

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