SATS Cargo Loading Simulation

The Problem: High-Stakes Operations, High-Friction Training

Aviation cargo loading at Changi Airport demands absolute precision, as a single miscalculation can disrupt flights. For SATS Apron staff, mastering cargo holds and strict SOPs requires intense, hands-on practice. Traditional training methods often lack the interactive repetition needed to build critical muscle memory before stepping onto a high-pressure tarmac.

The Objective: A Risk-Free Engine for Operational Mastery

The goal was to engineer an interactive 3D simulation to expedite training for new apron staff. This high-fidelity digital twin of actual operations allows trainees to practice maneuvering transporters, securing cargo, and using enterprise software in a fully risk-free environment.

Scope & Project Management

Operating as the sole Product Designer and Engineer, I owned the product lifecycle end-to-end. Beyond hands-on development, I managed the strategic roadmap—defining the scope, navigating technical constraints, and ensuring the final product aligned seamlessly with stakeholder expectations and training objectives.

Discovery & Field Research

Translating a high-stakes physical operation into a digital space requires absolute context. I was granted on-site access to Changi Airport's airside, collaborating directly with an industry supervisor to dissect complex ground handling workflows. This firsthand observation allowed me to accurately map the physical constraints of the tarmac and translate them into intuitive digital mechanics.

From Reference to 3D Assets

Using the photos and videos captured during my on-site research, I modeled the simulation environment and operational assets from scratch using Autodesk Maya.

Scaling for Functionality

To get the sizing right, I imported a player character into Maya to use as a baseline reference. This ensured the cargo pallets, transporters, and pallet locks were scaled accurately enough for the interaction and locking mechanics to work smoothly in the game engine.

Texturing & Scene Building

Once the modeling was complete, I used Adobe 3D Substance Painter to apply custom materials and textures. To make the scene feel like a genuine Changi Airport environment, I also modeled and placed background elements like the Control Tower and the Jewel building.

The interface was designed to support the training. By prioritizing clear instructions and familiar controls, the user experience reduces cognitive load so trainees can focus entirely on mastering cargo operations.

Modular Architecture via Object-Oriented Programming (OOP)

To ensure the simulation was scalable and performant, I architected a modular interaction system using C# Interfaces (InterfaceInteractable). Instead of attaching heavy, isolated scripts to every object, I utilized optimized physics casting (Physics.OverlapSphereNonAlloc) to detect player proximity. This allowed the player to seamlessly interact with various objects—from cargo pallets to aircraft damage reports—using a unified, lightweight logic structure that drastically reduced performance overhead.

Precision Spatial Tracking & State Management

Aviation SOPs require exact cargo placement. To enforce this, I engineered the ForwardHoldSystem as a robust state machine. When a trainee moves a pallet, the system continuously tracks its real-time X and Z coordinates against predefined multidimensional arrays. If a trainee attempts to lock a pallet outside the designated safe zone, the system intercepts the input, halts progression, and dynamically triggers an error UI prompt, ensuring strict compliance with real-world loading instructions.

Real-World Adoption

The simulation successfully surpassed its initial proof-of-concept scope. It was officially adopted by the SATS Gateway Services Apron Department and integrated as a core internal learning tool to safely and efficiently onboard fresh ramp staff.

Scalability & Seamless Handover

Because the project was engineered with a clean, modular object-oriented architecture, it was built for the future. I successfully documented and handed the product over to the internal department, providing a robust foundation for the next team of developers to seamlessly scale the software and add new operational features.