Beneath every journey lies the quiet language of pavement — vibrations that speak of wear, neglect, and the slow yielding of infrastructure to time. Researchers have now learned to listen more precisely, developing a method that uses the accelerometers already embedded in ordinary vehicles to assess road surface quality in real time, achieving a correlation of 0.981 with established global roughness standards. The significance lies not only in the technical elegance but in the democratization of knowledge: what once required specialized equipment and months of analysis can now emerge continuou