# Risk Assessment of Fixed Obstacles along Roads
## 5 Hypothesis Verification
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Combination**} & \multirow{2}{*}{\
\begin{tabular}{c} **Height above** \\ **Ground Level** \\ \end{tabular} } & **Impact of the** & \multirow{2}{*}{
\begin{tabular}{c} **Spatial Guidance** \\ **of the Road** \\ \end{tabular} } & \multicolumn{3}{c}{**Distance of Fixed Obstacle**} \\ \cline{5-6}  & & & **(0–3 m\(>\))** & **(3–6 m\(>\))** \\ \hline
5, 23, 41. & (\(-\infty\)–0.0 m) & significantly & straight or slight & & \\  & & slows down & directional curve & & \\ \hline
6, 24, 42. & (\(-\infty\)–0.0 m) & significantly & other combinations of & & \\  & & slows down & spatial guidance & High Risk & Medium Risk & Low Risk \\ \hline
7, 25, 43. & \(<\)0.0–0.5 m\(>\) & \
\begin{tabular}{c} doesn’t slow \\ down \\ \end{tabular} &
\begin{tabular}{c} straight or slight \\ directional curve \\ \end{tabular} & High Risk & Medium Risk & Low Risk \\ \hline
8, 26, 44. & \(<\)0.0–0.5 m\(>\) & \
\begin{tabular}{c} doesn’t slow \\ down \\ \end{tabular} &
\begin{tabular}{c} other combinations of \\ spatial guidance \\ \end{tabular} & High Risk & High Risk & Medium Risk \\ \hline
9, 27, 45 & \(<\)0.0–0.5 m\(>\) & \
\begin{tabular}{c} partially slows \\ down \\ \end{tabular} &
\begin{tabular}{c} straight or slight \\ directional curve \\ \end{tabular} & Medium Risk & Low Risk & Without Risk \\ \hline
10, 28, 46. & \(<\)0.0–0.5 m\(>\) & \
\begin{tabular}{c} partially slows \\ down \\ \end{tabular} &
\begin{tabular}{c} other combinations of \\ spatial guidance \\ \end{tabular} & High Risk & Medium Risk & Low Risk \\ \hline
11, 29, 47. & \(<\)0.0–0.5 m\(>\) & \
\begin{tabular}{c} significantly \\ slows down \\ \end{tabular} &
\begin{tabular}{c} straight or slight \\ directional curve \\ \end{tabular} & Low Risk & Without Risk \\ \hline
12, 30, 48. & \(<\)0.0–0.5 m\(>\) & \
\begin{tabular}{c} significantly \\ slows down \\ \end{tabular} &
\begin{tabular}{c} other combinations of \\ spatial guidance \\ \end{tabular} & Medium Risk & Low Risk \\ \hline
13, 31, 49. & (0.5–1.5 m\(>\) & \
\begin{tabular}{c} doesn’t slow \\ down \\ \end{tabular} &
\begin{tabular}{c} straight or slight \\ directional curve \\ \end{tabular} & Medium Risk & Low Risk & Without Risk \\ \hline
14, 32, 50. & (0.5–1.5 m\(>\) & \
\begin{tabular}{c} doesn’t slow \\ down \\ \end{tabular} &
\begin{tabular}{c} straight or slight \\ spatial guidance \\ \end{tabular} & High Risk & Medium Risk & Low Risk \\ \hline
15, 33, 51. & (0.5–1.5 m\(>\) & \
\begin{tabular}{c} partially slows \\ down \\ \end{tabular} &
\begin{tabular}{c} straight or slight \\ directional curve \\ \end{tabular} & Low Risk & Without Risk \\ \hline
16, 34, 52. & (0.5–1.5 m\(>\) & \
\begin{tabular}{c} partially slows \\ down \\ \end{tabular} &
\begin{tabular}{c} other combinations of \\ spatial guidance \\ \end{tabular} & Medium Risk & Low Risk & Without Risk \\ \hline
17, 35, 53. & (0.5–1.5 m\(>\) & \
\begin{tabular}{c} significantly \\ slows down \\ \end{tabular} &
\begin{tabular}{c} straight or slight \\ directional curve \\ \end{tabular} & Without Risk & Without Risk \\ \hline
18, 36, 54. & (0.5–1.5 m\(>\) & \
\begin{tabular}{c} significantly \\ slows down \\ \end{tabular} &
\begin{tabular}{c} other combinations of \\ spatial guidance \\ \end{tabular} & Low Risk & Without Risk \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._the given accident types. Information on the age of the vehicles will allow an assessment of whether the amount of recorded occupant health consequences may have been significantly influenced by the level of passive safety of the crashing vehicle. The average age of the vehicle fleet in the Czech Republic was found to be 14.3 years for the period of crash accidents studied [24]. The hypothesis is tested on the basis of the main assumption defined by the following relation: the resulting riskiness of fixed obstacles in the vicinity of the road (\(R\)) is given by the product of the severity of the consequences of traffic accidents (\(Z\)) and the probability of traffic accidents (\(P\)).