The Adaptir system included one Remote Traffic Microwave Sensor (RTMS) and two SI-3 radar sensors. The RTMS sensor is mounted onto a portable trailer and is raised approximately 17 feet above the roadway. It records both average speeds and lane-specific counts every five minutes. The SI-3 radar sensors are mounted on the trailer and pointed towards the oncoming traffic. These sensors record average speeds for every five-second interval. All the sensors were powered by the batteries on the portable trailer and were recharged by a generator. Figure 4 shows an on-site RTMS sensor mounted on top of the pole. The LPR camera and Blufax unit can also be seen in the same picture. Figure 5 is a picture of an on-site SI-3 radar sensor.