Page - 53 - in Integration of Advanced Driver Assistance Systems on Full-Vehicle Level - Parametrization of an Adaptive Cruise Control System Based on Test Drives

4.3. Test Drives Graz-Ost motorway junction: L311 L311 A2B C D Graz-Puchwerk exit: A 500m eho¨hztinßaL exit: L370 Figure 4.5.: Test route Table 4.3.: Parameters of the test drives Basic study Proband study Overall Distance travelled [km] 139.2 306.2 445.4 Recorded time [s] 7922.6 22290.3 30212.9 Mean velocity [km/h] 63.3 49.5 53.1 Number of drivers [-] 2 10 12 Mean age of drivers [year] 34.5 30.9 31.5 Standard deviation of driver age [year] 6.4 6.5 6.3 Female drivers [%] 0 30 25 Male drivers [%] 100 70 75 Comfort-oriented driving style [%] 50 70 67 Dynamic driving style [%] 50 30 33 the tests, with a mean age of 31.5 and a standard deviation of 6.3years. Overall, a distance of 445.4km was recorded, with a mean velocity of 53.1km/h. Figure 4.6(b) shows the histogram of the longitudinal vehicle speed for all the measurements. It can be seen that there is a peak at the speed range of 0 to 10km/h and at 40 to 50km/h. As already mentioned in table 4.3, the mean velocity is 53.1m/s. Figure4.6(a) showsthat theaccelerationdensity ishigher forpure longitudinalor lateral accelerations. This result is comparable to the results of Wegscheider, [Weg09]. The 53