At the end of 2003, camera boxes were used to enforce speed for 30 sections of road. The total road distance was about 500 km, and the number of camera cabinets was 225. The system consists of fixed pole and cabinets installed at the side of the road. All sections where speed enforcement is undertaken are clearly signed with information about the speed cameras. Speed camera enforcement has resulted in a total of 4,801 photographed vehicles in 2002 and 9,402 vehicles in 2003. Motorcycles and emergency vehicles that make up about 2% of the traffic are not included. The number of approved photos was 2,565 during 2002 and 6,073 during 2003. The proportion of approved photos and contacts with the vehicle drivers has thus increased from 53% to 65%. Nearly the entire decrease in unsatisfactory photos can be attributed to technical defects.