Showing 6 results for Transportation
, , , ,
Volume 19, Issue 52 (3-2019)
Abstract
One of the Challenging problems of Tehran metropolitan region is Air pollution. Suburban expansion in the form of sprawl patterns have created the travels and transportations, due to the dependence on personal vehicles contributes more than 85 percent of creators of air pollution. The article studied the role of transportation in emergence of urban air pollution in Tehran metropolitan region, have population more than 15.98 million. The method of this paper is of analytical and is based on the secondary data and traditions of the Quantitative research methodology. This article have been wrote in the context of Retroductive strategy and meta-analysis method and compositional research traditions. For analysis of suburban spatial transportation have used Raw Data Intra-Urban and suburban Data in 1395 Year And for spatial analysis of air pollution (PM2.5 and PM10), have been used The raw data from sensing stations and Landsat satellite images (OLI) for three selected days in 1392, 1393, and 1395 as survey samples in the ArcGIS software. The research findings indicate that due to the intensity of transportation flows in Tehran metropolitan, the suburb to the suburb, the suburb to the central city (Tehran) and vice versa, Air pollution center Rise cannot be attributed to Tehran alone, as the area of pollutant sources has been distributed within the "Tehran metropolitan region ".So, the amount of spatial correlation between air pollution maps and transportation flow maps in selected days (2 Bahman 1392, 5 Bahman 1393 and Dec. 7, 1395), in all cases indicated high spatial relations (more than 75%), Confirmation the idea of this paper. Analysis of this situation in triple loops also shows that the highest volume of transportation is in the city of Tehran (CBD), suburban and exurban areas, respectively and the distribution pattern and spatial accumulation of pollution are also subject to this situation.
Pakzad Azadkhani, Mohammad Salavrzizadeh, Afsaneh Shahmoradian,
Volume 22, Issue 64 (3-2022)
Abstract
Transportation and urban transportation policies are one of the most important tools which can be utilized for the qualitative and quantitative development of cities. Various factors can affect urban transportation systems including natural, economic, social, and cultural factors. the main objective of the current study is to evaluate and assess the resiliency of urban transportation networks in Ilam City, which is carried out using a descriptive-analytical and comparative method. The required information for the current study was obtained using library and field studies. The statistical population of the study included experts in urban management and crisis management, among which 40 participants were selected using convenience-based method and questionnaire was distributed among them. The analysis of the data was carried out using analytical hierarchy process (AHP) and integrated digital layers in Expert Choice and ArcGIS software applications. The results indicate that 49 percent of the transportation networks in Ilam City, which have a high level of resiliency based on the general criteria, are in high danger of flooding. Moreover, 72 percent of the traffic congestion points in Ilam City are located on streets with a high level of resiliency based on the general criteria. Among all the urban roads and streets in Ilam City, only 63 km has high levels of resiliency and these are mostly the main streets of Ilam City. The final results of the study show that improving the urban transportation system of Ilam City not only involves the structural issues of the roads, but it also involves a large number of administrative issues. Therefore, first we have to identify dangerous areas and then try to take the necessary measures through appropriate management decision making in order to improve these urban transportation networks.
Sara Behvandi, Abbas Arghan, Mohammad Reza Zand Moghadam, Zeynab Karke Abadi,
Volume 22, Issue 67 (12-2022)
Abstract
The purpose of this study is to investigate the effect of dust on the economy of Ahvaz. The present study has used descriptive and analytical research methods. In addition, this research is applied-developmental in terms of purpose. The statistical population of the study includes specialists, managers, experts and professors in the field of environment and dust in the city of Ahvaz is 65 people. The sample size was selected based on the total census of 65 people. A questionnaire designed in urban economics in the city of Ahvaz, which has four main variables. Based on this, the questionnaire has 32 questions that will be researcher-made and each of the four main variables has eight questions. Experts and professors formalized the validity of the questionnaire and its reliability was confirmed by Cronbachchr('39')s alpha of 0.81. Data analysis was performed based on structural equation analysis in Smart PLS software. In general, dust has affected the economy of Ahvaz city and this has been in such a way that dust on urban housing with an impact factor of 0.63 and a value of 11.4 T, Dust mites on urban transport with an impact factor of 0.60 and a value of 9.94 T, dust mites on urban facilities and facilities with an impact factor of 0.54 and a value of 6.70 T and dust mites on urban finance with an impact factor of 0.68 and a value of T 16 / 12 has had an impact
Hamed Ahmadzadeh, Ph.d Mahmoud Reza Keymanesh, Siavash Makani Bonab, Iman Ghanizadeh,
Volume 23, Issue 68 (3-2023)
Abstract
The rapid growth of metropolitan areas around the world, coupled with the increase in population in these cities, has created numerous problems such as traffic congestion and disruption to the inter-city transportation system. Therefore, this dilemma has been one of the major challenges facing urban planning in the late twentieth century which has influenced the achievement of sustainable urban development goals. Electronics in cyberspace are an integral part of life. Today, the use of public transport is one of the issues that are related to different aspects of quality of life. The purpose of this study was to investigate the impact of using public transport in reducing traffic and air pollution. In this study, library and field method were used for data collection. The statistical population of the study consisted of experts and urban planning experts. Sample size was estimated 25 people using snowball technique. In this study, AHP technique was used to achieve the research objectives. Data gathering tool was paired comparison questionnaire. The results of this study showed that the importance of indicators (criteria), in terms of their importance percentages are: Safety 0.499, Environmental Pollution 0.313, Cheapness 0.120 and Convenience 0.068 and finally the most preferred option between two motor modes, The public transport mode is identified at 0.778 compared to the 0.222 personal transport mode.
Shahrzad Amirsarvari, Mohammad Ebrahim Ramazani,
Volume 23, Issue 70 (9-2023)
Abstract
The creative city will make all your try and relying to the idea of people to solve their problems and build a city of people who are looking for their desired cities. The creative city is not only a space in which creativity grows, but organizing and managing it is creatively planned. The title and general purpose of this research is the assessment of the environmental capability of Tabriz city in the formation of a creative city , Tabriz is one of the main cities of the country and among the major centers of urbanization in Iran, which is the center of East Azerbaijan province and in comparison with the center of neighboring provinces in terms of quantitative (such as population) and Quality (such as functions) has a speed positions index and is far higher in the surface. Accordingly, in this thesis at first the theoretical foundations related to the subject has been expressed and the research method and data collection is a field and library. The statistical population of the research (using Morgan table) was 384 population of Tabriz, which was conducted through a stratified random sampling questionnaire. Validity and reliability of the questionnaire were determined by content validity and formal validity and calculating Cronbach's alpha confirmation. The results of the study showed that environmental power as well as social and social activities on the formation of creative city has a positive and significant effect on the formation of creative city. The results of this study show that tabriz city does not have the environmental power needed for the formation of creative city.
- Amir Kaveh, - Maryam Karimian Bostani, - Gholam Reza Miri,
Volume 24, Issue 73 (6-2024)
Abstract
Along with the development of cities and increasing population, many challenges have been created, the most important of which is urban transportation. The inability of traditional urban management to address this challenge has led to some approaches, including intelligent transportation. Adopting and implementing such an approach in metropolitan areas requires a change in management approach, of which integrated urban management is known as the most important. The purpose of this study is to investigate the status of integrated urban management and then its impact on the realization of intelligent transportation in the city of Zahedan. The research method is descriptive-analytical and based on data collection in the field through a questionnaire. The validity of the instrument and its reliability was confirmed by Cronbach's alpha greater than 0.70. The statistical population of the study is urban experts in Zahedan. The sample size was set at 100 people. The result of the one-sample t-test shows that the variables of integrated urban management are significant at the level of less than 0.05. From the statistical point of view, the 7 variables of good governance, synergy, unity of urban command, context, interaction, organizational structure, and systemic perspective are not in a good situation and these conditions have caused the integrated urban management index in Zahedan to not have favorable conditions. Also, the significance of the test shows that the 5 variables of intelligent transportation, namely intelligent monitoring, intelligent payment, intelligent violation registration, intelligent information, and mechanized fleet management are significant at the level of less than 0.05. Significantly, it indicates the unfavorable situation of the intelligent transportation index in Zahedan. Regression showed that integrated urban management variables can be more than 68% effective in the realization of intelligent transportation and 32% are dependent on other factors. The variable of good governance with 12% and then the systemic perspective with 11%, has the greatest impact in this regard.
Keywords: integrated management, intelligent transportation, Zahedan city.
