How GPS & AI Are Rewriting the Paving Playbook

On this week’s On the Surface, host Seth Stevens and co-hosts Brad Marotti and Jordan Janet welcome back Patrick Lemley, Construction Technologies Manager at Delta, for a deep dive into how paving has evolved—and where it’s headed next.

Patrick maps the journey from labor‑intensive stringline control to today’s full‑GPS model-based paving that can auto-steer the paver, control end-gates, and hold grade. You’ll get a clear, practical breakdown of the paving train and why process specifics matter for ride quality and smoothness.

We cover the front end of the workflow too: high‑speed road scanning and rapid model building that lets teams predict leveling quantities and have better conversations with DOTs before the first ton is laid. Patrick also explains critical safety fail-safes, the workforce shift from hot, repetitive tasks to fewer, higher-skill technician roles, and why regulatory readiness will be key for autonomous equipment on public highways.

Thanks for listening!

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