What material makes the longest lasting road?

Asphalt is commonly used for long-lasting roads due to its flexibility, durability, and ability to withstand varying weather conditions. However, concrete roads typically offer even greater longevity, often lasting 30 years or more with proper maintenance. Innovations like reinforced concrete and the use of high-performance materials can further extend road lifespan. Ultimately, the choice of material depends on factors such as traffic load, climate, and cost considerations.