Managing peak passenger demand: the role of fare calculation in high-footfall events

Large-scale events place a very specific kind of pressure on transport networks. Demand is not only high, but also compressed into short windows where thousands of passengers need to move through stations quickly and without friction. In these conditions, ticketing and the technology that enables it becomes a critical part of operational performance rather than a supporting function.

The Grand National is a clear example of this dynamic in practice. As one of the UK’s largest sporting events, generating more than £60M (c. $80M/€70M) in regional economic activity, it drives sharp and concentrated increases in passenger demand across the network.

To manage this, rail operator Merseyrail introduced Tap & Go to improve customer flow and reduce pressure on ticketing infrastructure. Initially deployed using ITSO smartcards and later expanded to include contactless bank cards and mobile devices, the solution enabled a multi-token approach, allowing customers to travel using the method that best suited them.

Over the course of the event, Merseyrail reported more than 111,000 journeys were completed using contactless travel, demonstrating strong customer adoption and validating the model under real-world, high-demand conditions.

What made this successful was not simply the availability of contactless entry. It was the combination of a fast, intuitive interface at the gate and a fare calculation engine capable of processing journeys accurately at scale.

Together, Tap & Go and Tracsis’ Fare Calculation allowed Merseyrail to:

• Reduce pressure on ticketing infrastructure

• Improve passenger throughput

• Maintain full control over fare calculation and revenue during one of the busiest periods on the network.

The operational challenge

Events such as the Grand National do not just increase passenger numbers. They change the way those passengers arrive, move, and interact with the network.

Instead of a steady flow, demand becomes concentrated. Large groups arrive at similar times, often unfamiliar with the network, and expect to move quickly. Under these conditions, traditional ticket purchase and validation processes can quickly become bottlenecks.

For Merseyrail, this created a clear operational challenge. The network needed to handle a significant increase in passengers while avoiding congestion at ticket offices and entry points. At the same time, it was essential to maintain accurate fare collection and avoid introducing risk into revenue processes.

Encouraging customers to use Tap & Go was a deliberate decision to address this. By allowing passengers to travel using contactless cards and mobile devices, the need for pre-purchased tickets could be reduced, removing one of the main sources of friction in the customer journey.

However, simplifying the experience at the front end inevitably increases the complexity behind the scenes.

Every Tap & Go journey must still be reconstructed, priced, and reconciled. The system must determine the correct fare based on entry and exit points, apply caps and rules, and process payment accurately.

Enabling flow through interface and system design

At the Grand National, Merseyrail deployed a dedicated Tap & Go area, including temporary validators positioned to capture demand before passengers reached the main ticket check lines.

This had a direct impact on how passengers moved through the station environment.

As noted by Merseyrail’s retail team following the event:

The interface, in this case the ability to tap quickly and move on, directly improved passenger flow. It reduced queuing, eased congestion, and supported more efficient crowd management during peak periods.

However, as many operators know, fast contactless taps only work if the system behind them can keep up.

Tracsis’ Fare Calculation making Tap & Go viable at scale

Tracsis supported Merseyrail’s deployment through its fare calculation engine designed for account-based and contactless ticketing environments.

The Fare Calculation engine is built to operate across multiple token types, processing journeys generated from smartcards, contactless EMV transactions, and mobile-based interactions within a single, unified system. This token-agnostic approach allows operators to support a broad range of customer entry points without increasing operational complexity.

Our Fare Calculation engine is responsible for processing the journeys created by Tap & Go. It takes entry and exit events, reconstructs journeys, applies fare rules, and calculates the correct charge. This includes determining best-value outcomes across single and multi-leg journeys, applying zonal fares, concessions, and capping logic automatically.

Behind this, the platform integrates directly with payment providers and back-office systems, supporting both pre- and post-pay charging models, secure transaction handling, and settlement processes aligned with industry data feeds. Journey data is processed against fare, routing, and timetable inputs, ensuring that pricing decisions are both accurate and auditable.

During the Grand National, this capability was exercised under conditions that are difficult to replicate in testing.

Passenger volumes increased sharply within short timeframes. Large numbers of journeys needed to be processed concurrently. Fare calculation had to remain consistent, accurate, and timely throughout.

Tracsis handled this without degradation in performance, allowing the benefits of Tap & Go at the interface level to be realised without introducing operational or commercial risk. Tap & Go removed the physical friction for the passenger while Tracsis’ Fare Calculation absorbs the complexity required to make that possible.

Improving customer experience without sacrificing control

From a passenger perspective, the success of Tap & Go is straightforward. It reduces the need to plan, removes the requirement to purchase a ticket in advance, and allows for a faster journey through the station.

At high-footfall events, these benefits translate directly into operational improvements. Faster passenger movement reduces congestion, lowers pressure on staff, and creates a more manageable environment overall.

However, for operators, customer experience cannot come at the expense of control.

Tracsis ensures that while the customer experience is simplified, the underlying fare calculation remains robust. Every journey is processed against defined rules, best-value pricing can be applied automatically, and revenue is captured accurately without manual intervention.

One of the defining characteristics of the event was the variability in demand. Passenger numbers did not simply increase, they fluctuated significantly over short periods. Systems that perform well under steady conditions often struggle in this context. Processing delays, increased exceptions, and operational workarounds are common symptoms.

All of Tracsis’ ticketing products are designed to handle this type of variability.

During the event, the platform scaled to accommodate increases in journey volumes without impacting performance. Fare calculations continued to be processed in line with expected timings, and the system remained stable throughout peak demand periods. For Merseyrail, this provided confidence that the ticketing system would not become a limiting factor in managing the high footfall from the event.

That confidence is critical. It allows operators to focus on customer flow and service delivery, rather than managing system constraints.

A model for future ticketing

The Grand National and Merseyrail provide a clear example of how modern ticketing systems can support both customer experience and operational performance when designed correctly.

The combination of a low-friction interface and a robust fare calculation engine creates a model that is both scalable and commercially viable. It allows operators to simplify the customer journey while maintaining control over pricing, revenue, and data.

This is particularly relevant as more networks move towards account-based and contactless ticketing models. The success of these approaches depends not just on customer adoption, but on the ability of underlying systems to handle complexity at scale.

Why Tracsis?

Tracsis has developed our Fare Calculation to address the realities of modern transport networks, where demand is variable, customer expectations are high, and systems must operate reliably in all conditions.

At the Grand National, this capability was demonstrated in a live, high-pressure environment. More than 111,000 Tap & Go journeys were completed, passenger flow improved, and fare calculation remained accurate and consistent throughout.