Representing a total investment of 15.21 million baht and return on financial investments found. The samples chosen to use the sidewalk after adjustments 390 (97.5 percent) instead of using motorcycles to save on fuel costs was 156 baht per day, and if 97.5 percent of the total population of the University (7,999) could save all the oil 1.0176 million baht or 3,200 baht per day per school year. (318 school days) and environmental aspects of the sample chose to use the sidewalk after an improvement of 390 (97.5 percent) instead of the motorcycles will help reduce carbon dioxide emissions into the atmosphere has 12.90 kgCO2 per day and if. 97.5 percent of the total population of the University (7,999 people) would reduce emissions of carbon dioxide into the atmosphere per day or 247.96 kgCo2 78,851.28 kgCO2 academic year (318 school days).