Startup Idea : Mobile app for finding no of potholes in a region

GPS enables smart phones could be used for measuring no of potholes in a region.Users just need to enable this app and allow post on a centralized hosted website.This website would be global.Users would basically highlight the cause to the native government authorities to rectify the potholes.If not it would be visible to the world that particular regions government is not bothered.GPS would track the dipping altitude and measure the potholes.Users invoke this app while driving.End this app while ending the drive.Collected data would be auto uploaded to a centralized website with maps.The moment the potholes are rectified the user needs to just drive on the same path again and refresh the website data.This app would help us in improving our road conditions.