The Position Orientation System (POS) collects vehicle position, velocity, attitude, track, speed, and dynamics from a moving vehicle. This data can be used to create centerline maps and to calculate geometric data such as curvature, grade, and cross-slope. The POS also provides motion compensation information to other sensor systems onboard the data collection vehicle. The system incorporates the Applanix POS LV unit and includes an Inertial Measurement Unit (IMU), dual GPS receivers, and other data acquisition sensors such as a DMI and GAMS (GPS Azimuth Measuring Subsystem) for superior position accuracy.











