What is a key concern regarding hot weather for paved surfaces?

The concern regarding hot weather for paved surfaces is primarily focused on the weakened structural integrity of these surfaces. High temperatures can lead to the softening of asphalt and other materials used in road construction, making them more susceptible to deformation, rutting, or cracking. This structural weakening can significantly reduce the lifespan of the pavement and pose challenges for both vehicle safety and maintenance.

In this context, while increased traffic on the roads, a higher likelihood of accidents, and disruption of emergency services may be valid considerations under hot weather conditions, the specific impact on the physical characteristics of the paved surfaces is most critical to understand. Hot weather directly affects the composition and stability of the materials, and this is a key issue that mitigation efforts must address to ensure road safety and durability.