DTI offers an optional chassis mounted sensor to measure the acceleration or g-forces imposed on the locomotives. When installed the sensor measure and records vehicle motion in all 3 axis:
x = longitudinal (braking and acceleration)
y = transverse (left and right turning forces)
z = vertical (up and down forces, bumps, curbs)
The recorded g-force information may be displayed and reviewed in coordination with the video and GPS location data with colour coding representing severity of g-forces.
For buses, an OBDII engine management interface provides important engine and gearbox status which becomes far more meaningful when associated with the vehicles location and the driving conditions are visible.