حمل و نقل عمومی شهری

In the city of Tehran, many problems have become unsolvable problems, and the main reason for that is the existence of a project-oriented perspective in solving Tehran's urban problems. Tehran's urban public transportation is one of these problems that has led to a lot of dissatisfaction among citizens. In order to apply correct management in any field, appropriate policy making should be done because the policy making process is considered as the basis of management. One of the most important frameworks in policy making is the use of network governance due to the creation of a multifaceted perspective in solving complex problems. In this research, in order to adopt urban public transport policy in network governance, its challenges have been investigated. This research has been conducted using a qualitative method using thematic analysis strategy. The data collection tool is a semi-structured interview with scientific and executive experts, the interviews were coded using a descriptive method, and the coding reliability was calculated using the agreement method between the coders, and the agreement coefficient was 90%, which is acceptable. Then, the data was analyzed with MaxQD software and a network of themes was created regarding the challenges, in this network, the challenges are divided into five themes of organizing effective and relevant institutions, the structure of institutions, the way institutions are coordinated, the duties of institutions and conditions. environment were identified.

Urban public policy-making is one of the most important tasks of urban management and is a process that leads to decisions made by high society officials to address urban issues. The formulation stage is one of the most important stages of this process. In this study, the factors affecting the success of public policy formulation in urban management have been studied and urban public transportation has been considered as a special case of this research. This research has been done in a combined (qualitative-quantitative) way. The qualitative part of the research was analyzed using content analysis strategy and the quantitative part was analyzed by SPSS and Smart PLS software. The results of confirmatory factor analysis with PLS software while confirming the findings of the qualitative section showed how to coordinate institutions with a factor load of 86%, environmental conditions with a factor load of 81%, tasks of institutions with a factor load of 73% and the structure of institutions with a factor load 58% are the most important factors influencing the successful formulation of public transportation policies in Tehran, respectively.

Quantitative approach is known as a kind of research methods, has been used when measurable parameters are available in the process of research. This kind of research methods is being used in transportation and traffic fields because of the availability of measurable parameters. Although there is some measurable parameters are available, in the recent years qualitative and combined (quantitative and qualitative approaches)approaches have been used in transportation and traffic studies. In this paper a review study has been done to eliminate using qualitative approach in transportation and traffic studies. Results showed that although a number of variables are defined by measurable parameters in the field of traffic and transportation, but qualitative methodologies inresearch process, have been used in many cases. Results also show that in some studies qualitative approach had results that are more appropriate because some of the social parameters particularly in urban transportation have been merged by measurable parameters.