Safer, cleaner, and more efficient. That's the aim for the roads of tomorrow, but are we there yet? This week, Katie Haylor hits the road on a journey to discover how science is helping us build the highways of the future... Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Extremely Fast: The Science of Speed

The Naked Scientists flagship science show brings you a lighthearted look at the latest scientific breakthroughs, interviews with the world's top scientists, answers to your science questions and science experiments to try at home.