In this paper, the authors investigate an application of mobile sensing: detection of potholes on roads. They describe a system and an associated algorithm to monitor the pothole conditions on the road. This system, that they call the pothole detection system, uses accelerometer sensor of Android Smartphone for detection of potholes and GPS for plotting the location of potholes on Google Maps. Using a simple machine-learning approach, they show that they are able to identify the potholes from accelerometer data. The pothole detection algorithm detects the potholes in real-time.