Portable reckless driving detection system

We present a portable system that detects bad driving behaviors of a bus using a 2-axis accelerometer. The system can identify four driving events: take off, brake, turn left, and turn right using a rule-based method. Then, the system gives scores to the behaviors detected by fuzzy logic rules. The system verification is done by 11 volunteers who keep track of driving events and scores according to their feeling. The scores from three volunteer are averaged and compared with that from the system. The results indicate an accuracy of 88.04% for taking off events, 87.21% for brake, 88.84% for turning right, and 84.36% for turning left.