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OF AIRSIDE STATE2027 The Global Benchmark of Airside Transformation
Airport leaders have spent the past decade digitising the airside The next decade will be defined by something far more difficult coordinating it02
03LETTER TO THE INDUSTRY Aviation has always been about movement. Every day, thousands of aircraft arrive, depart, taxi, park, refuel, board, undergo maintenance and return to service. For decades, airport performance was shaped primarily by the quality and capacity of the infrastructure supporting those movements. That relationship is changing. Passenger demand continues to grow while infrastructure expansion becomes more difficult, more expensive and more constrained. At the same time, airports are expected to improve resilience, sustainability and operational efficiency in an increasingly complex environment. The defining challenge is no longer simply building more infrastructure. It is coordinating the people, systems and decisions that already exist. This report argues that aviation is entering the Airside 4.0 era. Airside 4.0 is not defined by a single technology. It is an operating model in which infrastructure, software and operational decision-making work together as one connected airside environment. Success is measured not by the number of systems an airport deploys, but by how effectively they work together. Throughout the Airside Innovation Summit 2026, airport operators, ANSPs, airlines and industry partners returned to the same conclusion: The next generation of airport performance will come from integration rather than isolation, from orchestration rather than visibility alone. Every additional aircraft movement achieved without building another runway, every turnaround recovered before it affects the departure wave and every maintenance issue resolved before it disrupts operations reflects a different way of thinking about performance. Increasingly, competitive advantage comes from coordinating the relationships between systems rather than simply improving the systems themselves. The Airside 4.0 Index™ introduced in this report is intended to provide a common framework for understanding that transformation. It is not a ranking of airports, but a way of measuring the capabilities that will define high- performing airside operations over the coming decade. The airports that lead the next decade will not necessarily be those with the largest infrastructure programmes. They will be those that turn information into decisions, decisions into action and complexity into operational advantage.
18.804Billion passengers by 2045 Global passenger traffic is projected to nearly double over the next two decades.Source: ACI World Airport Traffic Forecasts 2025-2054
C H A P T E R 1 GLOBAL AIRSIDE OUTLOOKWhy Airport Performance Is Changing05
Airside performance has traditionally been constrained by infrastructure. Increasingly, it is constrained by complexity. C H A P T E R 1 - G L O B A L A I R S I D E O U T L O O K 2027 2045
The Limits of Traditional Expansion Historically, airports improved performance primarily through infrastructure investment. Capacity constraints were addressed through new runways, terminal expansions, additional stands and upgraded facilities. That model remains an important part of aviation's future. ACI estimates that approximately $2.4 trillion of airport investment will be required by 2040 to support future demand and modernisation needs. However, expansion alone is unlikely to meet the industry's future requirements. Many airports are being asked to increase capacity, strengthen resilience and improve sustainability simultaneously. In this environment, performance depends not only on infrastructure growth but also on how effectively existing infrastructure is used. As a result, attention is shifting towards operational coordination, decision-making and system-wide visibility. From Assets to Interactions Airport performance has traditionally been measured through physical indicators such as runway capacity, aircraft movements, gate utilisation and terminal throughput. These metrics remain important, but they explain only part of the story. A modern airport operates through a dense network of interactions. During a morning departure wave, a delayed inbound aircraft may affect stand occupancy, towing schedules, ground handling allocation, turnaround timing and pushback sequencing. During winter operations, de-icing activity influences stand availability, departure flows and runway utilisation. During a significant weather event, decisions made by one operational team can have implications across the airport within minutes. In many cases, operational disruption does not result from a single failure. It emerges from the interaction of multiple systems, processes and stakeholders. Managing those interactions consistently is becoming a defining characteristic of high-performing airports. Why Decision Speed Matters As airport operations become more interconnected, the speed of operational decision-making becomes increasingly important. Most airports today possess more information than ever before. Operational dashboards, surveillance systems, maintenance platforms and collaborative decision-making tools have significantly improved awareness. The differentiator is no longer access to information. It is the ability to act on that information quickly and consistently. This report refers to that capability as decision latency: the time between a change occurring within the operation and an effective response being implemented. A stand closure, an unexpected equipment failure or deteriorating weather conditions can all trigger a series of operational decisions. Airports that identify impacts quickly, coordinate stakeholders effectively and respond with confidence are often better positioned to maintain performance during disruption. For this reason, reducing decision latency is becoming as important as improving visibility. C H A P T E R 1 - G L O B A L A I R S I D E O U T L O O K
Sustainability Moves Onto the Airside The aviation industry remains committed to achieving net-zero carbon emissions by 2050. ICAO's long-term strategy reinforces sustainability as a central objective for the future development of aviation. Achieving that objective will require advances across multiple areas, including Sustainable Aviation Fuel, fleet modernisation and operational efficiency. However, progress depends not only on future technologies but also on decisions being made today. SAF remains a relatively small proportion of global aviation fuel consumption, highlighting the importance of complementary operational measures. For airports, this increasingly means focusing on activities such as reducing taxi times, minimising aircraft holding, improving stand utilisation, optimising energy consumption and electrifying ground operations. As a result, sustainability is becoming embedded within everyday operational decisions rather than treated as a separate programme.AI and Operational Confidence Artificial intelligence has become one of the most discussed technologies in aviation. Its most immediate value, however, may not be automation. Airport operations involve constant uncertainty. Weather conditions change. Aircraft arrive early or late. Assets degrade unexpectedly. Resource demand fluctuates throughout the day. AI provides an opportunity to reduce that uncertainty through better forecasting, earlier detection of risks and improved decision support. Whether applied to maintenance, operational planning, surveillance or resource allocation, AI is increasingly helping airport teams make better-informed decisions before issues escalate into disruptions.In that sense, AI is becoming less about replacing expertise and more about enhancing it.The Rise of the Software-Defined Airside A second shift is taking place across airport operations. Historically, improvements in capability were delivered primarily through physical infrastructure. Today, airports are increasingly enhancing performance through software, connectivity and operational intelligence. Predictive maintenance systems help identify potential failures before they affect operations. Advanced guidance and surveillance technologies improve situational awareness. Integrated operational platforms provide a shared understanding of airside activity. AI-assisted tools support planning, prioritisation and decision-making. The significance of these developments extends beyond technology itself. Increasingly, airports can improve runway utilisation, asset availability, turnaround reliability and operational resilience through software-enabled optimisation rather than physical expansion alone. This does not replace infrastructure investment. It complements it. The most successful airports are combining both approaches to unlock greater value from existing assets.
Airside 4.0 and the Next Generation of Airport Performance The common thread connecting these developments is complexity. Traffic growth, sustainability requirements, workforce constraints and technological change all increase the number of decisions required to operate an airport effectively. Airside 4.0 represents an operating model designed for that reality. It recognises that airport performance increasingly depends on the ability to connect systems, share information, anticipate issues and coordinate actions across the wider airside ecosystem. The Airside 4.0 Index™ provides a framework for measuring progress along that journey. he airports that lead the next decade will not necessarily be those with the largest infrastructure programmes or the most advanced individual systems. They will be the airports that become most effective at turning visibility into action, information into decisions and complexity into operational advantage.
State of Airside 2027 Published by ADB SAFEGATE Brussels, Belgium www.adbsafegate.com First Edition Sources include: Airside Innovation Summit 2026 ACI World ICAO IATA Industry interviews Public research Copyright 2026