نشریه مهندسی ترافیک
پیاپی 93 (تابستان 1402)

The present study aimed to investigate effectiveness mindfulness training on high-risk driving behavior of drivers with Attention deficit hyperactive disorder. This research is a semi-experimental research and a pre-test-post-test design with a control group. The statistical population includes all drivers with the negative score of 30 in the first season of 2011 in Tehran, from which, 30 people were selected as a sample by purposeful sampling and were randomly divided into two experimental and control groups (15 people). The research tool was the Manchester Driving Behavior Questionnaire (1990), which was confirmed according to its Cronbach's alpha (0.75). All participants, in both groups, answered it before and after the intervention and 3 months later in the follow-up phase. Mindfulness training was provided during 8 sessions (weekly), each session lasting 60 minutes for the experimental group. The data was statistically analyzed using SPSS 26 and repeated measures analysis of variance test. The results showed that mindfulness training on high-risk driving behavior of drivers with Attention deficit hyperactive disorder has been effective and has reduced it.

The main objective of this research was to investigate the role of taxi in the transportation of tourists in the city of Mashhad, using META SWOT Technique. Since the tourism industry plays a major role in the socio – economic development of cities, its requirements should be carefully planned and prepared. In this paper, first the supply and resources of each mode of transportation in the city of Mashhad was evaluated and their priorities was determined. Then, the competitive aspects of these transportation modes was studied and the competition map was developed. The main operating modes in the city of Mashhad were, private car, bus and taxi. Based on the analysis of these models, taxis were the most attractive mode of transportation for tourists. Therefore, the requirement for the Taxis to operate in a proper and effective manner should be met by the city authorities.

Considering the effects of the spread of the Internet in everyday life and the tremendous changes it created in the emergence of new businesses and the marginalization of some traditional businesses, the necessity of studying in this field became more apparent. One of these new businesses is Taxi-hailing, which was quickly accepted by the public. In this study, ten attributes of Taxi-hailing have been examined, and people's preferences in choosing the attributes of this transportation mode have been asked through a questionnaire. One of the specific points of how this study is examined is that, unlike the traditional mode of dealing with discrete choice models, which focuses on choosing the best (most important) alternative among alternatives, the role of the worst (least important) alternative is also considered in this type of modeling. This scaling method is called best-worst, and among the three cases in this scaling method, case 1, which studies attributes, is used in this study. In each questionnaire of this study, 12 questions were asked for each person regarding the attributes of taxi hailing. In each question, according to the stated preference, the respondents were asked to select one of them as the best (most important) and choose one as the worst (least important). The results showed that among the attributes studied, security and reassurance are the most important in choosing this transportation mode, and the respondents chose accessibility in second place. Compliance with health issues and social distancing was ranked last as the least important attribute.

Tobit method is applied in this research to consider in three sections, the effective factors on transportation demand of the people of Tehran. Results of applying tobit method to consider effective factors to use autobus and minibus (public transportation system) show that there is a meaningful and negative relation with income level, number of family members, number of educating members and number of male members, but this relation is meaningful and positive for the number of employed members. The age of head of family has meaningful and positive relation with using public transportation system only during third three decades of age. There is also no meaningful relation with other age groups and education level of head of family. Consideration of effective factors to use public taxi and telephone taxi by tobit method shows that there is a meaningful and positive relation with income level, educating members, number of employed members and education level of head of family in second and third levels of education. The relation between age of head of family and using public and telephone taxi is meaningful and positive only in fifth decade of age. As the results show, there is no meaningful relation with number of family members and number of male members. Tobit method to consider effective factors to use subway shows that there is a meaningful and positive relation with income level, number of family members, number of educating members and education level of head of family but this relation is meaningful and negative for number of male members of family. The relation with the age of head of family is meaningful and positive only in fifth decade of age and there is no meaningful relation with the number of employed members of family.

The aim of the current research is to investigate the impact of intelligentization of urban public transportation fleet on the satisfaction of citizens using the Bus Rapid Transit (BRT) lines of Tehran Municipality. The research method is survey-based and, in terms of purpose, it is applied. The statistical population includes all citizens who use the express bus lines, totaling an average of four hundred thousand people per day. To collect research data, a researcher-made questionnaire with appropriate reliability (Cronbach's alpha ≤ 0.70) was used, consisting of 29 items. In this study, both descriptive and inferential statistical methods were used to analyze the data. Descriptive statistics utilized tables and frequency distribution charts, while inferential statistics were carried out using the SPSS software. Research Findings There is a significant correlation between the intelligentization of bus fleets and citizen satisfaction, with the intensity of this impact being 63%. Moreover, the dimensions of intelligentization (use of GPS, utilization of GIS system, and electronic ticketing) have a positive influence on citizen satisfaction. The dimension with the greatest impact on citizen satisfaction is the use of GPS systems. Furthermore, the levels of satisfaction and the scores of intelligentization among respondents showed no significant differences based on gender, marital status, or any other demographic factors.

Pedestrian red light violation is one of the crucial causes of pedestrian crashes at urban intersections, which cause considerable injuries and casualties to this vulnerable road group every year. The objective of this study is to evaluate the risk of pedestrian-vehicle collisions by clustering the pedestrians' redlight violations using surrogate safety measures. The present study utilized surveillance camera footage for the purpose of collecting data on pedestrians' red light violations at two urban intersections in Babol city. Based on the critical thresholds of post-encroachment time (PET), time to collision (TTC), and gap time (GT), the Chi-means algorithm identified three different risk levels of violations. Moreover, structural equation models were developed for each of the risk levels based on the variables influencing the variables of humans, environment, road, and vehicles. Lastly, an initial framework regarding the promotion of traffic safety culture was proposed with emphasis on the human factor due to its greater influence.

Iranian cities are considered to be among the densest cities in the world. Population density and public transportation with poor performance, and the lack of pressures such as the cheapness of gasoline and regular taxis have caused many intersections in Iranian cities to operate under saturated and supersaturated conditions during peak traffic hours. The optimal cycle length can significantly reduce or even prevent traffic congestion. This study estimates the optimal cycle length with the objective of minimizing the intersection delay. For this purpose, different scenarios were simulated by changing the saturation rate (DS), cycle length (CL) and line capacity variables in VISSIM software, and the delay value was obtained for different cycle lengths.