Modern airports need more than just baggage transport
As passenger numbers grow and flight schedules become increasingly complex, airport baggage handling systems must do more than simply transport bags from check-in to the aircraft. They also need to store, sequence and release baggage at the right time to support efficient airport operations.
Modern airport baggage storage systems help airports manage fluctuating passenger flows, optimise make-up operations and maximise the use of available space. They also enable airports to maximise the utilisation of make-up positions by reducing how long each make-up area needs to remain open for an individual flight. This allows more departing flights to be handled within the same sortation area footprint, reducing the need for additional infrastructure as passenger numbers grow.
Whether passengers check in several hours before departure or airlines require baggage to be built for multiple flights simultaneously, intelligent baggage storage plays a vital role in maintaining smooth and reliable operations. Early bag storage also supports early check-in, giving passengers more time to enjoy retail, dining and other airport amenities while creating additional commercial revenue opportunities for airports.
Why do airports store baggage?
Contrary to what many people think, baggage does not always travel directly from check-in to the aircraft.
There are many situations where baggage needs to be temporarily stored before continuing its journey, including:
- Passengers checking in several hours before departure
- Building baggage for flights in a planned sequence
- Managing transfer baggage between connecting flights
- Balancing baggage flow during peak periods
- Holding baggage while aircraft or gates become available
- Improving operational resilience during delays or disruptions
By intelligently storing and releasing baggage when required, airports can reduce congestion and improve overall system performance.
Early Bag Storage (EBS)
Early Bag Storage (EBS) is used when passengers check in well before their flight departs.
Rather than sending baggage directly to the make-up area, the baggage handling system automatically stores each bag until it is required. At the appropriate time, bags are retrieved and delivered to the correct make-up carousel or loading position.
This approach allows airports to:
- Support early check-in
- Improve passenger convenience
- Reduce congestion in make-up areas
- Optimise baggage flow throughout the day
- Make better use of terminal space
Batch Building and Flight Build-Up
Modern baggage storage systems are also used to support batch building, sometimes referred to as flight build-up.
Instead of sending bags to make-up as soon as they arrive, the system stores them until enough baggage for a particular flight has accumulated. Bags are then released in the correct sequence, allowing ground handling teams to build aircraft loads more efficiently.
Batch building can help airports:
- Improve baggage sequencing
- Increase make-up efficiency
- Reduce manual handling
- Better utilise make-up positions
- Support multiple flights simultaneously
- Reduce the amount of time each make-up position needs to remain open, allowing more departing flights to be handled within the same sortation area footprint.
This is particularly valuable at busy airports where make-up resources must be shared across many departing flights.
Different Types of Airport Baggage Storage
There is no single solution suitable for every airport. The most appropriate storage technology depends on passenger volumes, available space, operational requirements and future growth plans.
Each storage technology offers different advantages and trade-offs. Airports should consider not only storage density and throughput, but also operational complexity, maintainability, capital investment and whole-of-life operating costs when selecting the most appropriate solution.
Common approaches include:
Tote-Based Storage
Individual bags are automatically placed into dedicated totes before being stored within a high-density automated storage system. This provides excellent baggage tracking, flexible retrieval and high storage capacity.
However, Individual Carrier Systems (ICS) also have trade-offs that airports should consider. Because baggage must be transferred into individual totes with fixed dimensions, bag size and orientation become important factors during loading. Long or irregularly shaped baggage may require repositioning before it can be successfully loaded. As a result, many ICS installations include dedicated manual reloading stations to manage bags that cannot be automatically transferred into a tote. This additional handling step can increase system complexity, capital investment and maintenance requirements.
Conveyor-Based Storage
Baggage is stored on conveyor loops or accumulation conveyors before being released when required. Conveyor-based systems can be an effective solution where storage requirements are lower, existing infrastructure can be utilised, or airports have building height restrictions that make high-density automated storage impractical.
Dynamic Buffer Storage
Rather than using dedicated storage, some systems temporarily buffer baggage within the overall baggage handling network, allowing flow to be balanced across the system.
Choosing the Right Storage Solution
Every airport has different operational priorities.
When selecting or modernising a baggage storage system, considerations typically include:
- Passenger volumes
- Peak check-in profiles
- Available building footprint
- Number of departing flights
- Transfer baggage requirements
- Future terminal expansion
- Existing baggage handling infrastructure
- Airline operational requirements
For many airports, modernisation projects also present an opportunity to improve baggage storage while extending the life of existing baggage handling systems.
The Benefits of Modern Baggage Storage
An effective baggage storage system delivers benefits across the entire airport operation.
These include:
- Improved operational efficiency
- Reduced congestion throughout the baggage handling system
- Better utilisation of make-up positions
- Increased flexibility during peak periods
- Enhanced passenger experience through early check-in
- Greater resilience during operational disruptions
- Improved scalability for future growth
How Alstef Group Supports Airport Baggage Storage
Alstef Group designs, integrates and modernises baggage handling systems for airports around the world, helping operators optimise baggage flow from check-in through to aircraft loading.
We work with airports to develop baggage storage strategies that support their operational requirements, whether that involves early check-in, flight build-up, transfer baggage management or improving the efficiency of existing infrastructure. Every solution is tailored to the airport's passenger volumes, available space, operational processes and long-term growth plans.
Whether delivering a new baggage handling system or modernising an existing installation, our teams help airports improve operational efficiency, maximise system performance and build flexible, resilient baggage handling systems for the future.