Abstract
The braking of the trucks represents an important factor of the traffic safety. The intensity of the braking process depends of several major factors such as the driver behaviour, the vehicle design, the traffic conditions etc.
In order to record the data regarding the vehicle moving, a data recording system base on GPS technology was used.
The track adopted for the trials included urban roads and highways in both uphill and downhill configurations.
The post-processing of the recorded data has consisted of: Kalman filtering of the recorded signals, the calculation of the histograms for speed and acceleration, the analysis of the braking sequences.
The analysis of the data allowed concluding on the frequency and intensity of the braking with influences on the braking system behaviour.
Keywords: truck, braking process, statistics, GPS