Road Surface Automatic Identification System With Combination Pothole Detection Method and Z-Diff Method On Android Smartphone

The road condition in Indonesia especially in Semarang is often experiencing damage in a rainy season. If the condition is not fixed immediately, it can inflict harms to the road user such as raising the fuel usage and the vehicle treatment and the worst harm is threatening the safety traffic. The solution of these problems is providing an up-to-date information about the road surface condition so that the local institution can do a road improvement immediately. This research discusses the data collection of the road condition using accelerometer censor in a smartphone. The censor accelerometer will record data based on the tool movement. To record the data from the censor accelerometer needs a method. This research develops a system which uses a system of the censor accelerometer to identify the road surface condition using pothole detection method and Z-Diff. The two method combinations result 74 % of accuracy level, and it means that the system has high enough accuracy level in identifying a damage road or the one needs improvement. With the availability of the damage road location the work of transportation department of Semarang is hoped to make an immediate improvement to fix the road condition.