The Tracer Application of Public Transportation Based on Travel Information for Supporting Smart City in Indramayu

One of the city problems is public transportation. The main public transportation in a city of indonesia is "angkot". The many types of angkot in Indonesia, makes it difficult to monitor the existence of these angkot. This problem is included to key element of smart city. In this study, we built a public transportation tracking system to support smart city. The public transportation tracking system that our propose consist of perform which is integrated angkot tracer between device, web server and mobile application. Devices are installed on public transportation, then web servers are used to monitor related services and cellular applications are used for passengers to get information on angkot locations. From the results of this study, it is found that the device able to read coordinate position with a error rate of 1.4 meters and send to the server with "get" method with json parsing to be monitored. Moreover, the mobile apps can display coordinates of the angkot by shown angkot id, distance, duration and route from angkot. This application can provide solutions for angkot monitoring to reduce public transportation violations and passengers can know position of angkot in realtime.