ATR Track III: the real-time GPS for public security

Field tests of the ATR Track III system were conducted in the city of Bydgoszcz. A 25 km traverse going in one of the city district was selected. This particular stretch of the city has significant changes in buildings and curvature, making it a suitable traverse for testing the system. In figures 5 and 6 the comparison of ATR Track III , Magellan ProMARK X-CM GPS/DGPS positions versus digital map coordinates is presented.