The driver will receive the calculated optimal route on his cell phone in a form of map, just as the figure 11 shows. Using Google map, I first notified all the community points as blue to form a map. Then, after getting the optimal route, I gained the order of the trashcans to be visited so I could use arrow with different color pointing from one site to another to inform the drivers. Starting from the red arrow, the end will be where the green arrow directs toward.