The Wheel Tread Wear and Damage Guide (WTWDG) App is an interactive educational tool developed by the Rail Wagon Association and the University of Huddersfield. It provides railway professionals, engineers, and maintenance teams with structured guidance on identifying and understanding common freight wheel tread damage types in the UK.
This digitised version of the official WTWDG document brings technical knowledge into an accessible mobile format, featuring detailed illustrations, real-world examples, and interactive tools.

Key Features:
• Visual Damage Library: Learn about various wheel tread damage types, including hollow wear, wheel flats, grooves, cavities, and more, with reference photos and mitigation advice.
• AI Chatbot Assistant: Ask questions about damage types, wheel standards, or inspection methods, and receive AI-generated, context-aware responses based on the guide.
• User Feedback Submission: Submit examples or descriptions of unusual damage directly through the app to support continuous improvement of the knowledge base.
• Glossary of Terms: Access an in-app glossary to reference technical terminology used in UK freight maintenance.

Whether you are a rolling stock engineer, maintenance planner, or field inspector, this app makes it easier to recognise damage, understand root causes, and adopt best practices in line with standards such as GMRT2466 and RIS-2766-RST.

Designed for:
• UK-based freight rail operators and maintenance teams
• Rolling stock engineers and depot technicians
• Training and educational use across the rail industry

Developed by:
Rail Wagon Association in collaboration with the University of Huddersfield