Paper Title
EFFECTS OF CLEANING FREQUENCY ON PERMEABILITY RESTORATION OF PERMEABLE ROAD PAVEMENT AT KE-DA ROAD, PINGTUNG, TAIWAN

Abstract
This study aims to investigate the impact of different cleaning frequencies on the permeable road pavement at Ke-Da Road in Pingtung, Taiwan. The 1000-meter stretch of road was divided into nine sections, with maintenance conducted every two to three months using street sweepers, water trucks, and manual low-pressure cleaning equipment over a 22-month period. In-situ permeability tests were conducted monthly. The results showed that uncleaned section I dropped below the standard permeability value of 900 ml/15 s eleven months after construction completion, while cleaned sections maintained permeability above the standard, highlighting the importance of regular cleaning. Notably, sections cleaned three times had the best permeability recovery. This demonstrates that regular cleaning at appropriate frequencies is crucial for maintaining pavement permeability, extending lifespan, reducing urban heat island effects, and improving urban hydrological conditions. Keywords - Permeable Road Pavement, Regular Maintenance, Cleaning Frequency, Permeability Restoration.