Terminal-to-Terminal Fast-Time Modeling and Simulation
AirTOP® airport and airspace simulation software is a comprehensive suite of tools designed to model, simulate, and visualize airport and air traffic operations in fast-time. This enables organizations to study the implications of infrastructural or operational changes before investing in costly and time-consuming construction projects or altering procedures.
Use AirTOP to measure and improve terminal, airside or airspace capacity, pinpoint delays, determine the impact of revised flight schedules, simulate new operational procedures, assess air traffic controller workload, and more. Choose to assess individual aspects of airport and airspace operations or run complete gate-to-gate, or terminal-to-terminal analyses. The software runs hours of procedures in mere minutes, so you can quickly assess outcomes of different scenarios and confidently make decisions that translate into safe, efficient, and cost-effective operations.
AirTOP is a modular solution, offering the flexibility to purchase the modules you need with the option to add modules over time. Take a look at the airport and airspace modules below and see what suits your needs best.
Analyze passenger terminal performance, capacity, and resource allocation by modeling operational processes and people and baggage flows.
Study aircraft operations, review performance indicators and test scenarios to optimize procedures, validate designs and improve capacity.
Extend airside studies by modeling the movements and handling procedures of support equipment vehicles.
Optimize runway system throughput and performance, including demand and schedules, fleet mix, and modes of operation.
Seamlessly convert air traffic forecast data into a design day flight schedule.
Boost terminal airspace performance by modeling approach and departure procedures and simulating air traffic flows.
Assess en route airspace metrics by modeling and evaluating air traffic control procedures in high fidelity.
Extend en route studies by modeling air traffic flow management concepts such as 4D trajectories and demand-capacity balancing.
Integrate real-time air traffic demand to forecast complexity and controller workload, assess what-if scenarios, and support area control center decisions.
Platform Compatibility
Platform Requirements
Java 17 64-bits
System Requirements
Full support for 64-bit operating systems
Windows® 8 or later
MacOS® X 10 or later
Linux kernel 2.6 or later (e.g. Ubuntu, Fedora, RHEL)
English
What Makes AirTOP Unique
Visualize the problem - and the solution - in 2D and 3D
Seeing a problem often makes it easier to identify solutions. To test different scenarios and measure impacts, AirTOP accurately simulates all user-defined airport and airspace operations, as well as rules, multi-agent tasks, and behaviors. A single graphical user interface provides easy scenario editing, as well as viewing of simulations in 2D and 3D. AirTOP features an easy-to-use integrated map-based application containing GIS capabilities, to allow a flexible background display of scanned maps, aeronautical charts or vector data, weather data, satellite images, and elevation data.
Customize data for better decision-making
AirTOP data is highly customizable and can be extracted and visualized using hundreds of built-in reports, or exported as spreadsheets or SQL databases for presentation to stakeholders. Create videos of simulations to portray the impacts of different scenarios to decision-makers. The project management tool allows users to define scenario variants while avoiding data duplication.
Purchase only the modules you need
AirTOP modules integrate with one another on a common platform to offer a scalable feature set. An airport project may begin with the Airside Aircraft module, and as operations grow in size or complexity, additional modules such as Airside Vehicle or TMA/TRACON can be added to extend the software’s capabilities.
Make better, more-informed decisions
Complicated decisions involving multiple moving parts require more than a simple spreadsheet. When considering making changes to airport or airspace operations or infrastructure, AirTOP assists with informed decision making. Accurately model any airport or airspace operation, and run fast-time simulations of complex scenarios to test options and examine all the ‘what-ifs.’
Get the most out of airport and airspace operations and capacity
At an airport, delays of minutes and the associated knock-on effects can translate into impacts on the bottom line. AirTOP’s broad spectrum of tools allows users to assess how scenarios impact various aspects of airport operations, and how decisions play out in terms of costs and efficiency.
What’s New in AirTOP
New features, fixes, and other improvements built specifically with your feedback.
Get all the benefits of the latest release by upgrading your software.
General
AirTOP 2026 now fully operates on Java 21 for better performance and to ensure compatibility with the latest security standards. Another key highlight in this annual release is the renaming of the Runway Capacity Analyzer module to simply Runway Capacity, to reflect a clearer, more direct description of what the module is capable of.
AirTOP 2026 also introduces several enhancements across the modules. Updates to the Terminal module improves accuracy and efficiency in passenger process modeling, and improvements to the Airside Aircraft and TMA/TRACON modules are further outlined below.
Key features in this new release are:
New
All modules | Java 21 Support
- AirTOP 2026 now runs on Java 21, and support for Java 17 has been discontinued with this release. All users must upgrade to Java 21 before installing or using AirTOP 2026. For any questions regarding this transition, please contact Transoft’s support team.
Runway Capacity | New Module Name
- The Runway Capacity Analyzer module is now called Runway Capacity, offering a simpler, more direct name. This update is name‑only and does not affect functionality for existing users.
Airside Aircraft | Stand‑off Duration Logging & Reporting
- Automatically detect and log aircraft stand‑off durations with the default reports when aircraft stop at or queue near a stand-off position, providing clearer insight into apron congestion.
Improved
Terminal | TerminalProcessor Schedule Importer
- Schedule Importer now includes optional duration window controls and support for TerminalProcessorScheduleRule, ensuring schedules are assigned within valid time ranges, improving reliability for airlines without callsigns.
Terminal | MaxQueueingLength Metric for QueuePath Report
- QueuePath reports now include a MaxQueueingLength metric, giving a clearer and more accurate view of actual queue lengths for congestion and passenger flow analysis.
Terminal | TransferTime for AircraftDoor
- Passenger travel times can now be set directly on the AircraftDoor, simplifying and improving simulation accuracy for remote stands and bus transfers.
Terminal | MapData Visualization in 3D View
- MapData layers (SHP/RST) are now visible in the 3D View and aligned to the correct FloorLevel, improving spatial clarity and accelerating layout validation.
TMA/TRACON | Vectoring areas
- The « Turn at waypoint” feature can now be used across any ApproachLeg, offering more flexibility when configuring vectoring strategies during approach.
TMA/TRACON | Continuous Descent Operations
- Glide slope values are now applied to all ApproachLegs to enhance continuous descent operations.
General
The fourth AirTOP 2025 update includes bug fixes and several enhancements to existing features, particularly within the Terminal, Airside Aircraft, and TMA/TRACON modules.
Key features in this new release are:
New
TMA/TRACON module
- Now automatically calculates the altitudes at intermediate waypoints for a continuous descent
Improved Features
TMA/TRACON & Airside Aircraft modules
- Enhanced RunwayDependencies feature now allows users to define which dependency should take priority
Airside Aircraft modules
- The Taxiway Segment Group Report provides a more accurate delay calculation for removed aircrafts or vehicles
- The StandOffPositionList sequence for each ParkingPosition doesn’t change when executing multiple runs, ensuring stability
- Improved condition handling for the Parking Position Allocations Counting Report, preventing zero-count exports
TMA/TRACON module
- Users have more control over the AssignArrivalGapRule as it now has more triggering phases
- Arrival Gaps can be reassigned to another aircraft to avoid big delays
- Wind is now included when generating SID profiles
Terminal Module
- Capture open status and utilization of QueuePath in PassengerAreaStatus during a simulation, enabling users to verify queue path availability and utilization
- Forward distance calculation at QueuePath corners has been enhanced for smoother passenger movement
General
The third AirTOP 2025 update includes bug fixes and several user-friendly enhancements to existing functionalities, particularly in the Terminal, Airside Aircraft, Airside Vehicle, and TMA/TRACON modules. See below for key highlights in this release.
Key features in this new release are:
New
- Bing Maps replaced with fully supported Azure Maps functionality. Ensuring continued mapping services without disruption to a user’s workflow
- Compatibility support for Java 17 and 21
TMA/TRACON module
- Point-merge patterns can now be automatically created with just initial and final waypoints
Improved Features
Airside Aircraft module
- ParkingPositionGroup metrics are updated to reflect actual capacity rather than just occupancy. This enhancement provides more accurate data about parking position utilization
Airside Vehicle module
- Improved visibility of errors when aircraft become stuck due to insufficiently loaded service vehicles. This enhancement helps identify and troubleshoot issues related to vehicle assignments
TMA/TRACON module
- Wind is now taken into account both in ApproachLegs and SIDs
- The AircraftNavigationEquipment function can now be used for this module, allowing users to simulate deviation in trajectories to correctly calculate noise around an airport
- Improved circular connection between any two waypoints in Approach, enables users to create a point merge pattern without a vectoring area
Terminal Module
- An update in TerminalProcessor Schedule Importer, streamlines the flight assignment as it prevents invalid flight assignments and reduces manual correction
- Users can use PassengerAreaStatus in TerminalProcessorOpeningRule for more control over when processors open or close
- Users can now verify processor availability and utilization with PassengerAreaStatus
General
The second AirTOP 2025 update includes minor bug fixes and several feature enhancements, particularly in the Terminal, Airside Aircraft and TMA/TRACON modules. See below for key highlights in this release.
Key features in this new release are:
New
Airside Aircraft module
- Arrivals are no longer removed from the simulation when a parking position isn’t available. Arrivals can now taxi to a Stand-Off Position and wait there until a parking position becomes free. Making it possible to model congested traffic scenarios in situations where additional parking capacity is not an option.
Improved Features
Airside Aircraft and TMA/TRACON modules
- RunwaySchedule now allows users to specify time-based separation lists, instead of only distance-based.
TMA/TRACON module
- En-route waypoints can now be used in the Horizon Waypoint list of the RunwayArrivalSequence, allowing users to add flights to the sequence list before they enter the TMA/TRACON area.
Terminal module
- Users can now set an « active » FloorLevel in GlobalAltitudeFilter, helping users isolate and work on a specific level of the terminal, reducing distractions and the risk of editing objects on unintended levels.
- The SelectAirportforElevation model, a new parameter in the CreateBasicAirportSetupt wizard aligns a terminal’s 3D elevation with the airport’s real-world altitude. This provides a more accurate initial terminal set-up and reduces further adjustments.
- Aircraft scheduled for towing after arrival now release their parking position as soon as the tow operation begins. Freeing up the parking position for other arriving flights, improves stand utilization and reflects real-world apron operations.
General
AirTOP 2025, Update 1 is now available, featuring minor functionality updates, bug fixes, and enhanced features. This update includes several improvements for better flight sequencing and separation.
Key features in this new release are:
Improved Features
En Route and TMA/TRACON modules
- To enhance the coordination between En Route and TMA/TRACON, it’s now possible to slow down En-route aircraft to comply with TMA/TRACON restrictions. En-route aircraft now consider the minimum speed at the Initial Approach Fix (IAF) rather than always using the standard descent speed.
En Route module
- The Waypoint Trail Separation function now supports an Aircraft Pair Condition, allowing more flexibility to apply different separation strategies.
TMA/TRACON module
- Holdings can now also be defined by length and distance rather than just time-based durations. This allows better compliance with PNB/RNP procedures.
- Reports on arrival/departure separations now include Separation at Waypoint, making it easier to check if Runway Dependencies are correctly defined.
- The Runway Arrival Sequence can now exclude certain flights using the added flight plan condition. This ensures only relevant flights are included.
- If a runway doesn’t have a set minimum separation for arriving aircraft, the Runway Flow Constraint (RFC) will take runway separation from other sources, to help ensure aircraft are separated correctly.
General
AirTOP 2025 is here, offering new and improved features to enhance the user experience. Highlights in this release include a DWG importer that saves time by allowing direct file imports without the need for prior conversion, and improved modeling possibilities for more realistic and accurate airport operations and analyses.
New reports in the Terminal module include a summary table for easier comparison against the IATA Level of Service (LoS), and 3D view enhancements provide smoother navigation when panning, rotating and zooming. An update to the Stand Off Positions feature in the Airside Aircraft module supports compliance with security requirements for towing and departing aircraft, and an improvement to the AIXM importer helps prevent duplication to reduce modeling time and simplify processes in the TMA/TRACON module.
Key features in this new release are:
New features
All modules | A streamlined workflow with DWG files now being imported directly into AirTOP without requiring any prior conversion to SHP format.
Terminal | A new set of automatically generated reports added to the AirTOP Reporter includes a summary table for comparing results against the IATA LoS.
Improved features
All modules | Save time by applying Flight Plan random variations automatically rather than manually every time a project is run.
All modules | It is now possible to review the changes that will be applied when importing an AIXM before the changes are committed, simplifying the model maintenance and workflow.
Terminal | 3D enhancements now include the Z component (altitude) in panning, rotating, and zooming commands, improving navigation for example with vertical exaggeration between floors.
Airside Aircraft | Departure flight plans can now use Stand Off Positions when their designated parking position is unavailable, and towing aircraft can use Stand Off Position when the target parking position is occupied. This supports operational practices of certain airports, particularly in the US, to comply with security requirements.
Airside Aircraft | The Decision Reporter now includes the Parking Position Selection Rule, providing a detailed log of which rules were rejected, and which was accepted during the parking position allocation process.
Airside Aircraft | Improved Push Back Clearance grants clearance based on first-come, first-served when gates are delayed by traffic, to help manage pushback clearances with greater precision.
Runway Capacity | A new chart that shows the average Delay vs Throughput when selecting multiple analyses to improve results
Runway Capacity | Columns for airline or callsign root have been added to improve the fleet mix generator.
TMA/TRACON | The improved AIXM importer prevents duplicate element creation (e.g., SIDLegs) by reusing existing objects, reducing modeling time and simplifying the process of updating existing models.
TMA/TRACON | Reorder aircraft in Runway Arrival Sequence by fixing the runway order during threshold calculations to match the order in the runway list
TMA/TRACON | A new graph in the Runway Flow Constraint object shows the percentage of rejected requests.
To see what’s new watch the video below and download AirTOP 2025.
Licensing Options
Transoft offers a range of licensing options to help small, sole proprietorships right on up to the largest multinational organizations meet their transportation design and analysis needs.
La licence d’abonnement utilisateur est un modèle dans lequel un nombre défini d’utilisateurs abonnés se voient attribuer un accès dédié au logiciel via leurs identifiants uniques pendant la durée de la licence. Le logiciel peut être installé et utilisé par un Utilisateur Abonné sur plusieurs postes de travail.
Avantages des souscriptions utilisateurs
Les souscriptions permettent aux petites structures de commencer avec un utilisateur, puis d’en ajouter d’autres à moindre coût. De leur côté, les grandes entreprises bénéficient d’une plus grande souplesse de gestion et d’administration des utilisateurs via le portail My Transoft Portal. Outre une meilleure visibilité budgétaire, ces licences offrent l’évolutivité nécessaire pour adapter le nombre d’utilisateurs en fonction des besoins de l’entreprise.
Principaux avantages de la licence d’abonnement utilisateur
- Accès automatique aux mises à jour et nouveautés
Les mises à jour, les nouveautés et les bibliothèques sont importantes, mais pas toujours gratuites. Avec une licence utilisateur sur abonnement, vous bénéficiez automatiquement de correctifs, de mises à jour de compatibilité et de fonctionnalités optimisées, sans frais supplémentaires. - Plus grande évolutivité et meilleure gestion des équipements
À mesure que vos besoins évoluent, il vous faudra peut-être davantage de licences logicielles. En optant pour une offre sur abonnement, vous avez la possibilité d’ajouter des utilisateurs et de réattribuer des licences, ce qui permet de mieux maîtriser les coûts et les budgets, et d’opérer un reporting au niveau des utilisateurs. - Accès aux logiciels
Accédez à votre poste de travail, ordinateur portable ou ordinateur de bureau personnel. - Support technique illimité
Bénéficiez d’une assistance de qualité par téléphone ou par e-mail pour l’ensemble de vos déploiements et demandes de support technique. Vous pouvez même programmer une session d’assistance individuelle avec des spécialistes produit. - Invitations aux webinaires
Participez aux webinaires que nous organisons régulièrement. Ces sessions en direct sont une formidable occasion de découvrir comment nos logiciels peuvent simplifier votre processus de conception à moindre coût. - Formules de licence utilisateur souples
Bénéficiez de formules mono- et multi-utilisateur adaptées à l’évolution des besoins de votre entreprise. Contactez notre équipe commerciale pour plus de détails. - Administration simplifiée des utilisateurs
La gestion des utilisateurs peut être effectuée dans le portail My Transoft, via des liens d’invitation ou par l’authentification unique du fournisseur d’identité avec provisionnement des utilisateurs.
La licence sur abonnement d’équipe (TSL, Team Subscription License) est une option de licence qui s’adresse aux utilisateurs temporaires ou occasionnels du logiciel. La taille de ce type de licence est définie par le nombre de jetons attribuables.
Avantages des licences sur abonnement d’équipe
Contrairement aux licences utilisateur sur abonnement (USL, User Subscription License) qui s’adressent aux utilisateurs réguliers, les licences sur abonnement d’équipe sont destinées aux utilisateurs occasionnels de votre entreprise.
FONCTIONNEMENT
Chaque utilisateur d’une licence sur abonnement d’équipe doit posséder un compte sur le portail My Transoft pour pouvoir demander une licence. Un accès Internet est nécessaire pour cette opération.
Lorsqu’un utilisateur lance le logiciel sur son poste de travail, le programme se connecte au portail My Transoft et détermine s’il reste des jetons disponibles. Si c’est le cas, l’un d’eux lui est attribué pour une durée de 24 heures. L’utilisateur bénéficie alors d’un accès illimité à ce jeton pendant cette période. À l’issue des 24 heures, l’attribution du jeton expire automatiquement et un autre utilisateur peut le solliciter.
Lorsque tous les jetons de la licence sont attribués à un instant donné, aucun autre utilisateur ne peut utiliser cette licence jusqu’à ce qu’un jeton soit automatiquement libéré à la fin de sa période de 24 heures.
Principaux avantages de la licence d’abonnement d’équipe
- Gain de flexibilité pour vos équipes
Permet d’autoriser des utilisateurs occasionnels à accéder au logiciel sans avoir à acheter de licences dédiées. - Moins de tâches administratives pour l’IT
Accès simplifié aux logiciels pour les utilisateurs occasionnels : le personnel IT n’a pas besoin d’allouer les licences, ni de les transférer d’un individu à l’autre. Les utilisateurs gèrent eux-mêmes leurs licences, qui expirent automatiquement au bout de 24 heures. - Possibilité de combiner les abonnements d’utilisateur et d’équipe
Il est possible de combiner les deux modes de licence en fonction des besoins. - Mises à jour automatiques, nouveautés et contenu
Bénéficiez automatiquement de correctifs, de nouvelles versions ou de nouvelles directives de conception de véhicules. - Gestion aisée des besoins de votre entreprise
Bénéficiez d’une évolutivité hors pair et gérez efficacement. - Installation du logiciel et connexion en tout lieu
Accédez à votre poste de travail, votre ordinateur portable ou votre PC grâce à l’Authentification unique. - Support technique illimité
Bénéficiez d’une assistance de qualité pour l’ensemble de vos déploiements et demandes de support technique. - Invitations à des webinaires de formation
Participez à des webinaires animés par des spécialistes produit et découvrez comment nos logiciels peuvent simplifier vos processus de conception. - Administration simplifiée des utilisateurs
La gestion des utilisateurs peut être effectuée dans le portail My Transoft, via des liens d’invitation ou par l’authentification unique du fournisseur d’identité avec provisionnement des utilisateurs.
Network License
A Network license allows everyone within an office location to access the software from the company server with one person concurrently using at a time. Network licenses are not tied to a particular workstation or user. Multiple Network license seats can be purchased, and a license server keeps track of how many licenses are in use at one time. When Transoft’s software on a Network license starts, it first checks to see if a Network license is available to use. If so, a license is then checked out from the pool of licenses. When a user exits the application, the license gets checked back into the pool making it available to other users.
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Help Desk
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Licensing Options
Transoft offers a range of licensing options to help small, sole proprietorships right on up to the largest multinational organizations meet their transportation design and analysis needs.
Project Support Services
Need assistance with custom drawings and content creation related to your project design work? Transoft’s team of consultants can help. We deliver fast and helpful services for clients requesting additional assistance with drawings and simulations related to their project design work.