Startup Explore

Ali Uralov

Interviews with early-stage tech founders. Discover stories behind innovative startups shaping the future!

Episodes

  1. Ep6: AI-Powered Traffic Lights That Make Streets Safer and Smarter

    10/23/2025

    Ep6: AI-Powered Traffic Lights That Make Streets Safer and Smarter

    In this episode of Startup Explore, we sit down with Collin Barnwell, CEO and co-founder of Roundabout Technologies, a YC-backed startup building AI-powered traffic lights to make streets safer and more efficient. Roundabout Tech’s system uses cameras and GPUs to create a 3D real-time map of intersections, simulating traffic 10 times a second to optimize light changes. Their technology helps cities reduce congestion, prevent accidents, and improve travel times - all without replacing existing infrastructure. We discuss:- How AI-powered traffic lights simulate and predict vehicle movement in real-time- Key safety features: Dilemma Zone Protection and Dynamic All-Red Extensions- How their system adapts to fog, rain, and poor visibility- Handling emergency vehicles and ensuring software reliability- Their first deployment in San Anselmo, California, and the results: 30% reduction in rush-hour wait times- How Roundabout found its first city customer and built trust in a government market-  Collin’s background at Google and Verily, and what it’s like to go through Y Combinator- The massive market potential - over 330,000 intersections in the U.S. alone- Roundabout’s long-term vision for safer, smarter cities If you work in city planning or transportation innovation - or just want to see how AI is shaping real-world infrastructure - this is a must-watch episode. 📩 Interested in pilot programs? Contact Collin via email: collin@roundabout.tech. 📌 Learn more: X: https://x.com/XAliUralovInstagram:   / startupexplore_  TikTok:   / startupexplore_  Apple Podcast: https://podcasts.apple.com/us/podcast...Spotify: https://open.spotify.com/show/0uce6OS...Startup Explore: https://startupexplore.xyz/Roundabout Technologies: https://www.roundabout.tech/ Chapters: 00:00 Introduction to AI-Powered Traffic Solutions01:35 Understanding the Technology Behind AI Traffic Lights03:43 Safety Features: Dilemma Zone Protection and All-Red Extensions09:33 Adapting to Weather Conditions and Emergency Vehicles12:33 Ensuring System Reliability and Accuracy15:02 Integration with Existing Traffic Systems17:07 Pilot Programs and Initial Metrics19:03 Data Privacy and Ethical Considerations20:12 Challenges in Securing First Customers23:46 Founders' Background and Company Origins25:48 Insights from Y Combinator Experience27:52 Market Potential and Total Addressable Market28:59 Competition Landscape in Traffic Management32:03 Future Vision: Evolving Technology and Hiring Strategies36:46 Personal Insights and Hobbies38:19 Conclusion and Call to Action

    39 min

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Interviews with early-stage tech founders. Discover stories behind innovative startups shaping the future!