Tread wear indicators (yellow) located inside the main tread

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Tread depth d as detected from the camera's perspective

Tread depth

Johannes BETZ, Professor, Professor, Technische Universität München, München, TUM, Department of Mobility Systems Engineering

How to Check & Measure Tire Tread Depth & Wear w/ Toyo Tire Field

How to Check Tire Tread Depth: The penny test

What Is A Tread Wear Indicator?

Johannes BETZ, Professor, Professor, Technische Universität München, München, TUM, Department of Mobility Systems Engineering

How to Read a Tire Sidewall & Tread • Understand Your Tires

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PDF) TireEye: Optical On-board Tire Wear Detection

Johannes BETZ, Professor, Professor, Technische Universität München, München, TUM, Department of Mobility Systems Engineering

Question about tire tread safety levels - Maintenance/Repairs