Last updated: September 2026
Replacing a legacy ticketing system is one of the most significant strategic decisions a transport authority can make. It is not simply about selecting new ticketing technology - it is about defining how passengers will access public transport for the next decade while creating a more efficient, sustainable and adaptable operating model.
Denmark's nationwide transformation demonstrates what this can look like. Rather than replacing its ageing ticketing system with another card-based solution, Rejsekort & Rejseplan A/S reimagined the entire ticketing ecosystem. The result was a nationwide mobile-first Pay-As-You-Go system, where the smartphone became the primary travel channel, complemented by Tap where needed - all powered by a single backend. The programme reduced infrastructure requirements, simplified operations, strengthened customer relationships and delivered a future-ready platform without compromising accessibility.
Behind these results were a series of strategic decisions, not just technology choices.
When replacing a legacy ticketing system, it is tempting to begin by asking: Should we introduce a new smartcard? Contactless bank cards? Mobile Pay-As-You-Go? While these are important decisions, they should not come first.
The real objective is not to implement a particular channel or technology, but to create a ticketing system that delivers a better passenger experience while providing a more efficient and sustainable operating model for transport authorities. Travellers do not care whether they use a smartcard, a bank card or a smartphone. They care about travelling effortlessly, paying the correct fare automatically and moving through the network with as little friction as possible. Technology is simply the means of delivering that outcome.
Rather than focusing on today's ticketing technologies, start by designing the complete passenger journey - from planning and boarding to payment and after-sales support. Consider the needs of different traveller groups, their expectations and accessibility requirements before deciding which channels and technologies are best suited to serve them.
Sources of information can include past and focused surveys, focus groups, user panels, passenger associations and customer care records.
Denmark followed exactly this approach. Rather than starting with a predetermined technology, Rejsekort first defined the passenger experience it wanted to create. Only then did it determine which channels would best deliver that experience. Mobile-first was therefore not the starting point - it was the outcome.
The answer is rarely a single channel. Instead, transport authorities should build a complementary ecosystem in which each channel serves a distinct purpose. Not every channel needs to do everything. The strongest ticketing systems combine different channels, each chosen for what it does best - together delivering one seamless customer experience while improving operational efficiency and long-term sustainability.
Rather than asking how every traveller can use the same channel, ask which channel is best suited to each traveller's needs. The objective is not to create competing channels that duplicate one another, but complementary channels that work together as part of one integrated ecosystem.
Not every traveller has the same needs, and not every channel should attempt to provide the same experience. Instead, each should be optimised for the travellers it serves while contributing to one coherent ticketing ecosystem. This also means that the cost of a new channel should not be considered in isolation. It is the overall cost of distribution that matters, including the total lifecycle cost of each channel.
Denmark translated this principle into practice by designing complementary channels rather than competing ones. Mobile Pay-As-You-Go became the primary channel for the majority of travellers, while Basiskort provided an accessible alternative for those without, or preferring not to use, a smartphone. Each channel had a clear role, together forming one nationwide Pay-As-You-Go ecosystem.
Once the desired customer experience and the channel strategy has been defined, the challenge shifts from strategy to delivery.
Large-scale ticketing programmes often become lengthy and high risk because too many decisions are bundled into a single procurement process. Customer acceptance, technical feasibility, implementation risks and supplier selection are all addressed at once, making projects slower, more complex and harder to adapt as priorities evolve. A staged procurement approach offers an alternative.
By breaking the programme into clearly defined phases, transport authorities can validate assumptions, gather real-world evidence and refine requirements before making long-term commitments. Just as importantly, staged procurement provides the opportunity to evaluate more than technical capability. It enables authorities to assess strategic alignment, innovation potential and whether a supplier can become a trusted long-term partner, not just a technology vendor.
Procurement should also focus on the outcomes to be achieved rather than prescribing exactly how they must be delivered. By defining the desired passenger experience and operational objectives instead of rigid technical specifications, transport authorities give suppliers the flexibility to propose proven, configurable solutions - such as SaaS platforms - that can be deployed quickly and evolve over time. Rather than reinventing proven products that already exist in the marketplace through bespoke development, authorities should leverage what already exists and only consider customisation where it creates genuine value.
Finally, procurement should not assume that today's solution will remain unchanged throughout its lifetime. Contracts should enable continuous improvement, allowing the ticketing system to evolve alongside passenger expectations, operational needs and emerging technologies. An inherent advantage of Software as a Service developed for several clients is that evolution is built in. Updating a bespoke solution becomes a project in itself.
Denmark's procurement illustrates this approach. Rejsekort first validated customer acceptance and technical feasibility through targeted pilots before launching a staged procurement process. By selecting a proven, configurable SaaS platform and the right strategic partner, rather than commissioning a bespoke solution, the nationwide Rejsekort app launched within six months of contract signature—on time and on budget.
Once the right channels have been selected and the technology partner chosen, the next challenge is ensuring that every channel works together as one coherent ticketing ecosystem.
As transport authorities modernise their ticketing landscape, new channels are often introduced alongside existing systems. Without a clear integration strategy, this can lead to fragmented customer experiences, duplicated business logic and increasing operational complexity. Different channels may end up relying on separate fare engines, customer accounts or operational processes, making the network more expensive to operate and more difficult to evolve over time.
Wherever possible, customer-facing channels should share a common operational foundation. Whether a passenger travels using a mobile app, a Tap solution or other travel media, fare calculation, customer accounts, business rules and operational management should be unified or closely integrated. This creates a more consistent customer experience while reducing complexity, avoiding duplicated functionality and making future innovation easier.
A shared ecosystem also provides greater flexibility. New channels and services can be added over time without fundamentally redesigning the underlying ticketing architecture, enabling transport authorities to modernise at their own pace while protecting previous investments.
Denmark shows how complementary channels can operate as one ecosystem. Rather than managing separate systems for mobile and card-based travel, Rejsekort implemented a single Pay-As-You-Go backend powering both the Rejsekort app and Basiskort. Although the channels serve different passenger needs, they share the same operational foundation, creating a consistent experience while simplifying operations and reducing long-term complexity.
Even with the right technology, channels and procurement strategy, success is not guaranteed. The final challenge is leading the transformation itself.
Replacing a ticketing system is about far more than introducing new technology. It changes how passengers travel, how frontline staff support customers, how fares are managed, how data is used and how different organisations collaborate. Success therefore depends as much on people, governance, communication and change management as it does on the technology itself.
For this reason, ticketing transformation should be led as a strategic business initiative rather than a standalone IT project. Ideally, programme leadership should have direct access to executive decision-makers, ensuring that customer experience, operational objectives and long-term strategy remain at the centre of key decisions. At the same time, transport authorities should establish a clear long-term vision and ensure that all stakeholders understand not only what is changing, but why. This means engaging operators, political stakeholders, customer service teams and passengers early, aligning around common objectives and communicating progress throughout the programme. Internally, governance structures should enable fast decision-making while maintaining alignment across the many organisations involved.
Equally important is recognising that transformation does not end at launch. A modern ticketing system should continuously evolve based on passenger behaviour, operational insights and new mobility opportunities. Organisations should therefore view implementation as the beginning of an ongoing improvement journey, rather than the end of a project.
Discover how a mobile-first ticketing platform powered by Mobile Pay-As-You-Go can help you reduce costs, support every passenger and simplify fare collection with minimal hardware.