Missed Apex Formula 1 Podcast Missed Apex Formula 1 Podcast

Behind the barriers - Campbell Waddell

Oct 18, 2026 · 1h 4m

Summary

Host Matt and guest Dr. Campbell Waddle discuss the intersection of tire performance and track surface engineering. Waddle explains his friction mapping technology and introduces TrackWalk, a digital platform that automates circuit safety compliance and incident reporting. The conversation covers the complex science of asphalt textures, including how micro and macro textures influence tire wear and grip. They also explore why "rubbering in" a track involves a super-cleaning effect rather than just adding rubber, and why standardizing surfaces is impractical due to the dynamic nature of F1 r…

Topics discussed

Sponsorships and show introduction Welcome to Behind the Barriers and guest intro How the host and guest met Introduction to TrackWalk software Automating incident reporting and compliance User interface and stakeholder reporting Duty of care and the Lewis Hamilton door story PhD research on racetrack grip and origins Friction testing devices and grip mapping Technical explanation of friction measurement Wet vs dry testing and data variation Track evolution during a race weekend The 'super cleaning' effect of rubbering in Tire-surface interaction and lap time Asphalt variations and tire temperature spikes Defining asphalt, microtexture, and macrotexture Tire wear, degradation, and heat generation Balancing grip and tire compound selection Bahrain's positive texture and racing dynamics Why standardizing track surfaces is difficult Monaco asphalt failure and construction issues Forces on tires and surface delamination Cost and material constraints of resurfacing Paving timelines and weather effects Bitumen blinding and cold weather issues Bitumen softening points and surface temperature TrackWalk clients and closing remarks Sponsorship for Zen Nicotine Pouches Sponsorship for LinkedIn Ads
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