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© 2019 Elsevier Ltd Drivers have an important place in the traffic system when the human factor is taken into consideration. Drivers from different cultures are exposed to different values, norms, and traffic systems, and these differences may form various driver behaviors. Thus, traffic climate and individual values can impact driver behaviors. In this study, the relationships between Schwartz's individual values and traffic climate dimensions were examined. Clusters were then created from the traffic climate dimensions and individual values, and the differences in driver behavior within these clusters were investigated. In order to examine similarities and differences between countries, the results from 5 countries (Estonia, Greece, Kosovo, Russia, and Turkey)are presented. Correlational analyses indicated that, while internal requirements and self-transcendence are positively related in all countries, external affective demands and conservation are positively related in Estonia, Kosovo, Russia, and Turkey. Additionally, external affective demands and self-transcendence are positively related in Greece, Kosovo, Russia, and Turkey. A three-cluster structure fitted the data well in all of the five countries. Within-country differences were observed in clusters of Russian and Turkish data in terms of driver behaviors. The detailed results are presented and discussed in relation to the literature.

© 2019 Elsevier Ltd The main aim of the present study was to investigate the moderating role of aggressive driving of others on the relationship between self-reported aggressive driving behaviors committed by driver himself/herself and drivers’ aberrant and positive driver behaviors (i.e. errors, violations, and positive driver behaviors) among drivers from Estonia, Greece, Kosovo, Russia, and Turkey as the total sample in order to understand the grand pattern. The other aim was to examine the same moderating role of aggressive driving for each country separately. It was hypothesized that the combination of self-reported of aggressive driving behaviors committed by the driver himself/herself and perceiving aggressive acts of other drivers against them associates with more errors and violations for each country and the total sample. On the other hand, this combination was expected to associate with less positive driver behaviors. Surveys were completed by 743 participants from five countries (i.e., Estonia, Greece, Kosovo, Russia, and Turkey). The Driver Anger Indicators Scale (DAIS) and the short version of the Driver Behavior Questionnaire (DBQ) with items of Positive Driver Behavior Scale were used as measurement tools. Moderation analyses were conducted for the total sample and each country separately. The results of the moderation analyses indicated that there was a moderating role of perceiving other drivers as engaging in aggressive behaviors on the relationship between aggressive behaviors of the driver himself/herself and their errors or violations in the total sample and every country except for Russia. However, the significant interaction between aggressive behaviors committed by the driver himself/herself and other drivers' aggressive acts in traffic was related to more positive driver behaviors for Kosovar drivers and less positive driver behaviors for Russian drivers and the total sample. It could be discussed that the way of understanding aggressive be