فصلنامه مطالعات مدیریت ترافیک
پیاپی 60 (بهار 1400)

The network's proper functioning is directly related to the amount of access and the ability to communicate with various activities. If a network, even during regular operation, is desirable and acceptable, its desirable performance cannot be extended to the post-crisis situation for its various reasons. Therefore, one of the principal methods for preventing damage to the transportation network and proper management of various disasters, including earthquakes, is to study the decline in the transportation network's performance. One of the critical characteristics of a network can be the minimum spanning tree problem. As network links connectivity is close to the tree, the network would be more vulnerable to disaster situations. In this study, using the minimum spanning tree concept, we investigate the transportation network’s evolution in crises. The results show that a large proportion of the arterial roads of each province are located in the minimum spanning tree of that province; so, as an example, in the province of Tehran, as the capital of the country, the ratio of the links in the minimum spanning tree comprises a total of links is equal to 73%. The ratio of the length of the province's links, which is included in the minimum spanning tree, is 78%. The results show that a large part of the country's arterial roads' network needs careful planning and improvement before any crises occur.

The growing use of private cars has led to a number of issues, including environmental pollution, excessive densities, excessive energy and accidents. As a result, the desired way to serve and function in this sector can satisfy citizens satisfaction and reduce the volume of personal cars in the urban roads. Accordingly, the main objective of this study is to investigate the satisfaction of citizens from bus system and choose the proper public transportation vehicle for the city of Ilam. This research is applicable in terms of method, applied and in terms of descriptive analytical nature and in terms of the method of data collection method. The population of this study is citizens of city of Ilam .The sample size is based on the Morgan table, 384 people and the random sampling method is performed. The results of the One-sample t test by spss software showed that citizens' satisfaction of service quality of bus service service in ilam is at low level. In addition, the results of analytical hierarchy process (Ahp) method by EXPERT choice showed that in terms ofcitizens, internet taxi with 0.359 weight ranked first of public cars in terms of traffic In terms of fare, bus with weight of 0.456, in terms of safety and security, high weight bus, high weight internet taxi, and overall, considering all indicators, the van was the first priority of citizens.

The purpose of this study is to investigate the position of traffic police in the management of road traffic accidents in the area of ​​the Special Disciplinary Command in the west of Tehran province.

The research method is quantitative in nature, applied in terms of purpose and descriptive-survey in terms of data collection method. The statistical population included managers and elites in the field of accidents. Using the Georgian and Morgan table, the population was limited to 180 people. In the present study, Pearson correlation coefficient was used to investigate the relationship between traffic police position and traffic accident management and to evaluate the level of traffic police coordination with relevant devices, a one-sample t-test was used.

The results of the research show that the main hypothesis and all three sub-hypotheses are confirmed. The obtained Pearson correlation coefficient is 0.323, 0.299, 0.349 and 0.311, respectively.

A review of the decisions made confirms that less attention has been paid to the two priorities of traffic management and traffic accident prevention management. In ignoring the two categories of forecasting management and traffic accident prevention management, it is enough that the number of scientific resources in these two areas does not reach the number of fingers on both hands. Therefore, in order to reduce traffic losses in the coming years, the authorities should pay more attention to the two neglected clauses of traffic accident forecasting and prevention.

Cognitive, psychomotor and personality factors are effective in the occurrence of risky behaviors of drivers. Given that these behaviors have different types; it is not clear which type is most affected by which factors. The present study was to investigate the effects of cognitive and psychomotor factors namely motor agility, motor coordination, accuracy, mechanical aptitude, distraction, fatigue, attention, and personality factors namely sensation seeking, type A behavioral pattern, openness to feelings, and aggression on three types of risky behaviors includes errors, lapses and deliberate violations. The sample consisted of 440 drivers of Isfahan city who were selected by convenience sampling method and responded to the research tools include Driving Behavior Questionnaire, Distraction Scale from MMPI Personality Test, Accuracy and Coordination Tests from Flangang Test, DAT Test, Ahwaz Aggression Inventory, Zuckerman Sensation-seeking Scale, short form of Jangins Activity Scale, Chalder Fatigue Scale, and selective attention task. The findings showed that cognitive and psycho-motor factors, namely mechanical aptitude, distraction, and fatigue through attention, and motor agility, motor coordination, and accuracy through risk-taking create errors and lapses (p=0.01). But in deliberate violations, the effect of personality factors such as sensation seeking, openness to feelings and type A behavior patterns through anger is more important The results showed that different factors are involved in drivers' risky behaviors(p=0.01). Accordingly, different methods can be used to prevent and reduce any of the risky driving behaviors. Reduces errors and lapses by improving cognitive and psycho-motor abilities and with personality interventions, the amount of deliberate violations is reduced.

The purpose of this study is to identify, rank and develop strategies and indicators of smart urban growth (especially in the field of urban transportation) in the geographical area of District 8 of Tehran Municipality. The statistical population of this study was all experts and professors in the field of urban planning. Using purposive non-random sampling method, 60 experts in the field of urban studies and urban management were selected as the sample. In order to analyze the obtained data, the research questionnaire, hierarchical analysis and Super Decision software were used. (Vehicles (traffic infrastructure) ranked first, software indexes ranked second and street infrastructure ranked third in terms of importance in intelligent transportation growth. Providing the opportunity to buy tickets and other related services online has been the most important factor emphasized by experts. This option shows the importance of e-services in economic-environmental dimensions (reduction of fuel and energy consumption) in the smart urban growth in the field of traffic. Providing access to the subway and urban art for all age, gender, sensory-motor groups is another important priority that emphasizes the dimension of spatial and social justice. Finally, the use of clean, electric-hybrid cars is another issue that has been considered. The importance of this option is also in the environmental and economic benefits.

The purpose of this study is to achieve the causes of non-compliance with traffic rules by pedestrians and the impact of urban equipment on compliance. Also, achieving principles in equipment design that can be effective in encouraging compliance with the law. The present applied research is in the category of qualitative research in which we have used the Delphi method and then the questionnaire tool for navigation. This questionnaire has a high validity with Cronbach's alpha of 0.768. The sample size was 1151 citizens of Tehran between 18 to 60 years old. The results showed that the people believe in the need to comply with the law and its reasons, but consider boredom and haste as the main obstacles to complying with it. They believe that the design of the environment and the traffic light affect the desire to obey the law and the current product is not sufficiently visible. The most important problem in the field of law enforcement is related to passing the red light. The most important reason for non-compliance with the law by passers-by is boredom and haste. It is necessary to use both coercive and persuasive approaches in redesigning the relevant product.