## 4 Results
### Lateral Accelerations  
If we examine the lateral accelerations, which are important from the point of view of load securing in the lateral direction, we can distinguish between the different directions, but, in the long run, the number of left-turn and right-turn events are about the same. For vehicles with GVM above 3.5 t, the designed acceleration for the load securing and transport stability of load units in road transport in the lateral direction is 0.5 g and 0.6 g in the case of unstable loads, whereby an evaluation time of 1000 ms, according to EN12642:2016, is essential. In Table 5, we can see the maximum and minimum values of the y-axis accelerations at evaluation times of 80 ms, 300 ms, and 1000 ms from all testing routes. The largest measured values of the right-turn event were measured in Slovakia in the city of Zilina (see Figures 5 and 6) at all three times (the same acceleration event) during the drive through the right-turn flyover intersection with a speed between 29 and 51 km/h. On the other hand, the largest measured values of right-turn events were measured on a city curve in Slovakia in the city of Zilina (see Figure 6 and Figure 8), also at all three evaluation times (the same acceleration event) during the drive through the left-turn curve with a speed between 71 and 83 km/h. Table 6 shows the total number of the y-axis acceleration events from all testing routes. There are 38.2% left-turn events and 61.8% right-turn events; 35.6% of left-turn events are in the interval of -0.2 g to -0.1 g and 54.9% of right-turn events are in the interval of 0.1 g to 0.2 g. There are only 2.7% of left-turn events and 6.8% of right-turn events higher than 0.2 g, which is the minimum stability of the load unit that should withstand transport. \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline
**Acceleration** & & & & & & & & & \\
**Events [g]** & & & & & & & & & \\ \hline
**ax1000** & **Highway** & **Roads** & **Total** & **Highway** & **Roads** & **Total** & **Highway** & **Roads** & **Total** & \\ \hline
[-0.5; -0.4) & & & & 1 & & 1 & & & 1 \\
[-0.4; -0.3) & & 1 & 1 & & & & & 1 \\
[-0.3; -0.2) & & 10 & 10 & 9 & 2 & 11 & & 7 & 7 & 28 \\
[-0.2; -0.1) & 42 & 85 & 127 & 126 & 2 & 128 & 56 & 114 & 170 & 425 \\
[0.1; 0.2) & 12 & 65 & 77 & 106 & 1 & 107 & 53 & 91 & 144 & 328 \\
[0.2; 0.3) & & 2 & 2 & 2 & 2 & 2 & & 2 & 6 \\ \hline
**Total** & 54 & 163 & 217 & 244 & 5 & 249 & 111 & 212 & 323 & 789 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Number of x-axis acceleration events per country on highways and roads for ax1000 ranging from -0.5 to -0.1 g and from 0.1 to 0.3 g. \begin{table}
\begin{tabular}{c c c c c c c c} \hline  & \multicolumn{1}{c}{**MIN ay80**} & \multicolumn{1}{c}{**MAX**} & \multicolumn{1}{c}{**MIN**} & \multicolumn{1}{c}{**MAX**} & \multicolumn{1}{c}{**MIN**} & \multicolumn{1}{c}{**MAX**} \\  & **MIN ay80** & **aay80** & **aay300** & **aay300** & **aay1000** & **aay1000** & **aay1000** \\ \hline Slovakia & Highway & \(-\)0.265 & 0.334 & \(-\)0.234 & 0.299 & \(-\)0.219 & 0.274 \\ Road & \(-\)0.311 & 0.347 & \(-\)0.297 & 0.338 & \(-\)0.285 & 0.330 \\ Austria & Highway & \(-\)0.293 & 0.370 & \(-\)0.280 & 0.337 & \(-\)0.274 & 0.323 \\ Road & \(-\)0.234 & 0.261 & \(-\)0.229 & 0.253 & \(-\)0.224 & 0.245 \\ Germany & Highway & \(-\)0.245 & 0.323 & \(-\)0.209 & 0.305 & \(-\)0.190 & 0.299 \\ Road & \(-\)0.282 & 0.309 & \(-\)0.261 & 0.297 & \(-\)0.240 & 0.266 \\ \hline  & Total & \(-\)0.311 & 0.370 & \(-\)0.297 & 0.338 & \(-\)0.285 & 0.330 \\ \hline \end{tabular}
\end{table} 
Table 5: Maximum measured acceleration of left-turn event (negative values) and right-turn event (positive values) of semi-trailer vehicle combination in lateral axis in 80, 300, and 1000 ms evaluation times. Figure 6: Acceleration events in the ay1000 (absolute values) from 0.1 g to 0.4 g (**top**) and from 0.2 g to 0.4 g (**bottom**) with indication of selected parking and highway intersections on OSM map layer.