Regional variations of climate change impacts on asphalt pavement rutting distress

The global climate is currently changing remarkably. Rising temperatures intensify the likelihood of rutting in asphalt pavements. This research, covering seven Chinese provinces from 2021 to 2100, predicts asphalt pavement rutting depth on freeways and secondary roadways for the next 80 years. The study introduced the Rutting Climate Change Index to gauge climate change impact on pavement rutting. It examined regional variations in climate's effect on pavement rutting and associated factors. The results indicate that both longitude and latitude significantly influence the Rutting Climate Change Index for asphalt pavement rutting distress. With increasing longitude, the impact of climate change on rutting distress in asphalt pavement exhibits diverse patterns across different regions. The influence of climate change on rutting distress in asphalt pavement increases with higher latitudes. The regional variations in the impact of climate change on rutting distress in asphalt pavements are more pronounced along the latitude.