# A Study of the Behavior and Responsibility of Slovak Drivers, Especially in Case of Fatigue
## 2 Materials and Methods
\begin{table}
\begin{tabular}{l c c} \hline \hline \multicolumn{3}{c}{\(n=1458\)} \\ \hline \multicolumn{3}{l}{4. How many kilometers do you drive per year?} \\ \hline Up to 5000 km & 29.8\% & 435 \\ \hline
5000–15,000 km & 25\% & 365 \\ \hline
15,000–30,000 km & 19.3\% & 281 \\ \hline
30,000–50,000 km & 10.6\% & 154 \\ \hline
50,000–90,000 km & 6.7\% & 126 \\ \hline
90,000 km and more & 8.6\% & 98 \\ \hline
5. How many days a week do you drive? & \\ \hline Almost every day. & 53.8\% & 784 \\ \hline
3 to 5 times a week. & 20.6\% & 374 \\ \hline Less than 3 times. & 25.7\% & 300 \\ \hline
6. How often do you feel fatigued while driving a car? & \\ \hline Almost every day. & 4\% & 58 \\ \hline More than 2 times a week. & 8.4\% & 123 \\ \hline Once a week. & 12\% & 175 \\ \hline
1 to 3 times a month. & 14\% & 248 \\ \hline Rarely than indicated. & 39.4\% & 574 \\ \hline Never. & 19.2\% & 280 \\ \hline
7. Do you drive during fatigue? & \\ \hline I never drive during fatigue. & 13.7\% & 200 \\ \hline I avoid fatigue behind the wheel. & 40.8\% & 595 \\ \hline You cannot always avoid fatigue behind the steering wheel, in particular for duties and time schedule, therefore occasionally drive tired. & 42.3\% & 617 \\ \hline I often find myself tired behind the wheel. & 3.2\% & 46 \\ \hline
8. Have you already experienced microsleep while driving? (Microsleep is a sleep state lasting from a few tens of milliseconds to half a minute.) & 32.7\% & 406 \\ \hline Yes & 27.9\% & 1051 \\ \hline No & 72.1\% & 1051 \\ \hline
9. The appropriate temperature in the car’s interior is largely a subjective value, it is recommended to keep the temperature in the range of 18–23 degrees Celsius. Do you think that the interior temperature outside the range of 18–23 \({}^{\circ}\)C affects the driver’s attention? You may choose more than one option [30; 31; 32]. & \\ \hline The temperature inside the vehicle affects the driver’s attention and fatigue. & 58.5\% & 853 \\ \hline I think that at a lower temperature a driver feels more comfortable and refreshed. & 34.4\% & 501 \\ \hline I think that higher temperatures in the interior of the vehicle can make a driver & 49.7\% & 725 \\ tired and cause adverse conditions such fatigue or loss of attention. & \\ \hline I think that only together with other factors such as (fatigue, sleep deprivation, & \\ night shift... ) inappropriate temperature (high or low) of the vehicle interior & 44.3\% & 646 \\ can adversely affect the driver’s attention. & \\ \hline The temperature of the vehicle interior does not affect the driver. & 2.1\% & 31 \\ \hline I cannot answer the question. & 2.8\% & 41 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._Table 3 applies to question 7, which was: \"Do you drive during fatigue?\". The degree of responsibility was divided into 4 responses. These answers were defined by the degree of responsibility and the individual answers were explained to the respondents in the questionnaire by a model situation. These responses combine attitudinal and behavioral measures. The attitudinal measure is the response: \"It is not always possible to avoid fatigue behind the wheel, especially due to responsibilities and time schedule, so sometimes I drive tired.\". The other three response options are behavioral measures. The answer: \"I never drive tired.\" indicates the highest degree of responsibility. This means that the driver does not break the law and does not endanger traffic and acts as required by law. So, when fatigue occurs, the respondent never drives and chooses to rest, stop and so on. The answer: \"I avoid fatigue behind the wheel.\" indicates the second degree of responsibility. It means a model situation in which the driver still drives when fatigue occurs, but uses all available countermeasures and, if this is not enough, the driver stops, takes a break, rests and so on. The difference between the first answer is mainly in the strictness of decision-making. In this case, the driver is more benevolent.