جستجوی مقالات مرتبط با کلیدواژه « حمل و نقل » در نشریات گروه « مدیریت »

  The purpose of this research is to identify and prioritize factors affecting the development of Iran's transportation, customs and transit cooperation with other countries. This research is a mixed research method. The qualitative part of the research includes interviews with experts, so the intended statistical population was formed by experts familiar with the subject of the research. At first, the results of the qualitative part of the interview were coded with the data method of Foundation, Strauss and Corbin, and then the factors affecting the development of Iran's transport, customs and transit cooperation with other countries were identified and ranked. A closed questionnaire was used. The statistical population includes 12 experts in the qualitative section and 127 experts and customs managers in the quantitative section. Cronbach's alpha method was used for the reliability of the quantitative part of the questionnaire. In the next stage and step of the research, using the axial coding method and with analysis in the data theory of the foundation, the relationship between the classes produced in the open coding stage and the relationship of other classes with the central class are established in 6 headings, which are: 1. Conditions Ali, 2. central phenomenon, 3. strategies and measures, 4. intervening conditions, 5. contextual conditions, 6. consequences were obtained based on the paradigm model (Strauss and Corbin, 1998). Before that, considering these 6 classes and their relationship with each other, and with the opinion of professors and experts, the main and subcategories were identified from all the obtained indicators, and their priority and ranking were determined. In the quantitative part, the data analysis method including t-test and using structural equations has been determined and analyzed by SPSS and SmartPLS software.

The use of electric buses has a great effect on reducing traffic and air pollution. The purpose of this article was to examine the challenges facing the country to produce and benefit from this product and solutions to solve these challenges. In this research, data was collected through documentary studies and in-depth semi-guided interviews and analyzed through qualitative content analysis. The target community was the experts of electric bus manufacturing companies and related institutions. The number of 72 propositions were categorized into 10 sub-categories and finally 6 main categories, the main categories of which were empowerment, cost, technological cooperation and cultural alignment. Then, action was taken to form a focus group and the extracted challenges and solutions were validated and finalized. Among the important challenges are the dependence on foreign electric propulsion, the unaffordability of bus operations, the high price of electric buses, the infrastructure for conducting some specialized tests to obtain the standard, and the lack of culture for using this new product. Some important solutions include the domestication of electric motors and accessories with government support from domestic companies, the creation of a joint supply chain for bus manufacturing companies, the preparation of a business model based on public-private partnership, and the implementation of Article 12 of the law on removing barriers to production, cultural measures and promotion based on new product and technology requirements, design of night charging system for bus batteries and design of electric base buses

One of the important and effective success factors in development planning is the knowledge of the structure and potential of different sectors in the economy. Transportation, warehousing and communication sub-sectors are among the sectors of the country's economy, which have a significant share in the gross national product, and therefore, the factors affecting its added value should be considered by economic policy makers. On the other hand, in the direction of formulation and macro-economic decisions, the amount and direction of influence (symmetry or asymmetry) of monetary policies, including changes in the volume of liquidity, on macro-variables has always been the concern of economic policymakers. Therefore, in the upcoming study, we will dynamically examine the direction and degree of influence of the added value of the transportation, warehousing and communication sub-sector from asymmetric changes in the volume of liquidity using time series data annually during the period 1363 to 1398 and for For this purpose, the autoregression model with non-linear distribution breaks and the edge test approach have been used. The results show that there is a long-term relationship (collinearity) between the variables of the model, and the shocks of changes in the volume of liquidity in the studied model have an asymmetric effect and have larger coefficients in the long run. Based on other research results, the interest rate of bank loans on the added value of this sub-sector is positive and significant, and the elasticity of the added value of the mentioned sub-sector in the investigated model is higher than the interest rate of bank loans in relation to the changes in the volume of liquidity in the short and long term.

The trade in fossil fuels is one of the sources of income and one of the important factors of economic growth and development. Most developing countries, due to the lack of sufficient technology in the production process, do not have the ability to properly refine fossil fuels, and in return, by adopting a policy of exporting fossil fuels and importing goods, transfer the pollution to other countries. In other words, the trade in fossil fuels of developing countries and developed and industrialized countries causes the transmission of pollution through transportation channels and production channels. Also, population growth and production due to fossil fuel consumption are among the factors affecting this pollution transfer (fossil energy exports) between countries with trade relations. Using a multivariate panel linear model, this paper examines the impact of the fossil fuel trade on CO2 emissions, focusing on the transmission of pollution between target countries during the period 2018-2000. The results show that fossil energy trade channels (transportation and production) have a significant effect on CO2 emissions. The results also showed that the effects of transportation and manufacturing on CO2 emissions in developed countries are higher compared to developing countries, which indicates the transfer of pollution from developing countries to developed countries. Other results show that population growth and GDP have a positive and significant relationship with fossil fuel exports and pollution transmission between target countries, and trade freedom increases the volume of fossil fuel trade and thus increases CO2 emissions.

Today, supply chains in organizations are moving towards the use of effective systems and undoubtedly, knowledge is one of the integral components of such systems, in the supply chain is the most important and fundamental transportation process. Knowledge management components to help the organization achieve higher performance in transportation and distribution. The aim of this study was to provide a dynamic model for evaluating knowledge management components to help the organization achieve higher performance in transportation and distribution. For a better understanding of system behavior, relationships between system variables must be developed and the amount of variables should be simulated over time using computers. vensim software has been used for this purpose.

The development of rail transportation in a vast country like Iran is a crucial due to its potential role in reducing fuel consumption, environmental effects, causalities, and finally reducing the transportation costs, which is mainly caused by the road as the dominant transport sector in the country. Because of the importance of rail transport, it has been included as one of the pivotal issues in the sixth national development plan. According to the targets, the share of rail in goods transport must reach 30 percent, by the year 1404. Despite the advantages and potentials of rail transport, it is not sufficiently attractive for businesses, so that more than 90 percent of goods tonnage is carried by road. In this regard, the present study provides an overview of Iran's rail transport sector, analyzes the determining factors of rail freight transport attractiveness, identifies the major problems and challenges at macro level and at level of the selected goods categories, and finally devise solutions for them.

Auto insurances in Iran accounts for a significant share of sales among various types of insurance, ao sensitivity and attention to its future developments is very high. The aim of present study is to identify the influential factors and future characteristics of auto insurance in the world.

A systematic review has been conducted on this study on the future of vehicles, transportation system contain urbanization, and especially insurance. As mentioned, the main goal is to identify the influential factors and future features of auto insurance in the world. For this purpose, the publications of Journal of Insurance Research, NoorMags, Civilica, Science Direct, Emerald, Springer open, Insurance Research Center of Iran, Ayandeban, McKinsey, RAND, PwC, Ernst&Young, Willis Towers Watson, Capgemini databases have been cited, and screening databases based on the words including insurance, vehicle, automobile and transportation has been conducted.

In this study, which started with numbers of documents, 71 articles and 64 reports were deeply reviewed after several screening steps. From a review of 551 trends, mega trends, and factors and their impacts, and identifying causal relationships affecting the future of auto insurance, 197 categories in 31 structures have been identified as influential factors. They were categorized into six categories: technology, environmental, social, economic, political, legal, and business.

According to the study, numbers of factors will directly or indirectly change the future of auto insurance. JEL Classification: G22, O32, M10

 Startups in recent years have been able to offer new services and values to customers with higher productivity and lower prices. Therefore، the present study was conducted to identify the role and position of startups in improving traffic management and security in the country.

 The present study is a development-applied research based on a mixed (qualitative-quantitative) approach. The participants of the quality section include 16 specialists and experts in the field of technology and traffic who were purposefully selected and the data were obtained using semi-structured interview techniques. The statistical population of the quantitative section also included 32 PhD students and graduates in the field of traffic safety، the president and professors of the University of Traffic Police، senior managers of the traffic police who were selected in full. Smart-PLS software was also used to analyze quantitative data.

 The findings of the qualitative part of the research showed that start-ups with 4 roles are effective in improving traffic management، which are: "traffic monitoring"، "traffic safety"، "supply and demand management" and "travel optimization". The results of the quantitative section also confirmed the findings of the qualitative section.

 According to the findings، it is suggested that the traffic police in order to optimally distribute traffic by supporting the capacity of knowledge-based institutions and academic elites in order to launch strong and reliable internal router startups compatible with the environment the country should try.

In recent years, a special form of digital entrepreneurship has emerged that is often referred to as the shared economy and is in its infancy. Alignment with titles such as "participatory economics", "gig economics" and "platform economics" can generally be considered as a new form of exchange where buyers and sellers meet each other through an intermediary platform and hence transaction costs. Reduce. In 2004, the concept of sharing was described as mutual benevolence based on social behavior. . Similarly, in 2007 the concept of sharing was described as: The process of distributing assets for the use of others for a limited period of time without considering the legal rights to those assets. Shared economics involves the participation in the production, distribution, trade and consumption of various products and services by individuals or organizations. Shared economics can take many forms, including the use of information technology to provide information to individuals, companies, nonprofits, and the government that allows for resource optimization through redistribution or the sharing and reuse of excess capacity for goods and services. . One of the manifestations of the communal economy is in the discussion of transportation. Shared transportation, which can simply be defined as the shared use of a vehicle by individuals, has received more attention with the growing number of companies called Internet taxis. Although forms of public transportation - such as public transportation systems or taxi or car rental services - have been around for a long time, new forms are emerging and evolving. Given the importance of the shared economy in today's world, this article examines the challenges and dimensions of the shared economy in the transportation industry.

The purpose of this study is an investigation of the impact of each dimension of perceived quality of urban transportation services in Isfahan on the satisfaction of domestic tourists. In terms of purpose this is applied research and in terms of method, this is descriptive-correlative research. The present study is a combination of library and field research. The statistical population of the study consisted of domestic tourists of Isfahan on Nowruz 2017. The inclusion criterion was the usage of urban transportation. In order to collect data, the convenience sampling method was used. The results showed that to achieve tourist satisfaction it is necessary to increase the quality of services. It was also found that tourists are not satisfied with the urban transportation of Isfahan in any dimension. Therefore, according to the impact of different dimensions of service quality on tourist satisfaction, it is necessary to focus on improving responsiveness, empathy, reliability, tangible items, economic efficiency, and guarantee, respectively.

 Police logistics is to protect the properties of an organization, be responsible for putting an organization into operation, implement effective measures and make use of facilities. If managed in the right way, resources will certainly result in progress. Most of the police affairs are dedicated to the field of logistics. It consists of 5 operational elements: (1) maintenance and repair (2) transportation (3) logistics (4) design and plan (5) management, all of which police are responsible for. According to the utmost importance of these 5 factors, many researches have been conducted in these fields throughout Iran in which the main concern is to find the most important factors affecting the above mentioned 5 elements. In this study, we are to do meta-analysis research into these elements.

The present study is applied in terms of type and survey kind in terms of method of data collection. The method of the present research is descriptive-analytical and data collection instrument is based on studies and library documents. The research population includes all the studies which investigate maintenance and repair, transportation, logistics, design, plan and management in police logistics. In meta-analysis, there is no sampling and the meta-analyst endeavors to achieve all the researches through an extensive search. The research population of this project consists of 370 researches related to the fields of police logistics. The sampling method is whole-counting and is equal to the population; therefore, the research sample will be the same as the research population. In this research, qualitative approach of meta-analysis (qualitative) has been considered and Excel software has been used to analyze the results.

(a) The addressee of most of the solutions and results is not clear considering the office and related person. (b) The presented solutions are mainly about general topics and frequencies although some of the solutions like outsourcing are technically reliable and desirable.

Whatever is required more than before is implementing efficient management throughout police logistics as well as providing technical software.

Today, the transportation industry is growing in the country, and at the same time it has increased operational costs. Identifying and assessing the performance of economics enterprises and, finally, feedback and analysis of evaluation indicators is one of the main issues in the transportation industry In this research, multi-criteria decision-making techniques and Delphi methodology have been used to identify the indicators that affect the performance of a transport business, then the MULTIMOORA decision making method has been applied which is one of the novel methods of decision making There are several criteria and according to the established criteria, prioritization and ranking among the proposed performance indicators is performed. The present paper, in addition to identifying the indicators of the effect of Godard on the evaluation of the performance of the transport enterprises, tends to describe the steps of the MULTIMOORA method in brief in its methodology.
Keywords: Transportation, Enterprise economics, Multi-criteria Decision Making, Group Decision Making, Group Decision Making, MultiMoora Method

This paper uses the Mork approach to decompose the price shocks and analyzes the welfare effects of gasoline and gasoil price shocks for the period of 2007-2014 in Esfahan, Tehran, Khorasan, Fars, Mazandaran, and Khuzestan provinces using a dynamic panel data approach. According to the results gasoline demand is less responsive than gasoil demand to price shocks. For these provinces, the long run price elasticity of gasoline demand in the transportation sector has been found to be more than its short run price elasticity. This is not the case as regards gasoil demand. Price elasticity of gasoline is very small both in the long run and short run although it is more than gasoil price elasticity. Using an Almost Ideal Demand system, it is concluded that welfare effects of gasoil price shocks, as calculated by Equivalent Variation welfare change index (EV), are less than gasoline price shocks.

Road accidents are one of the most important causes of mortality and severe physical and financial damage, and severely threaten the social, cultural and economic aspects of human societies. Among the factors involved in road accidents, the contribution of climatic phenomena such as slipperiness on road surface, snow, blizzard, mist, avalanche, and freezing is clear. The purpose of this study was to investigate the spatial analysis of intra-city crashes and identify spatial factors affecting traffic accidents in Zanjan. The present research is applied from a type perspective and of a descriptive-analytical nature. The statistical population is the total number of accidents occurring in 2015, which has been used in a full-scale study, and no sampling has been carried out. The method of data collection was using library method and field method. The results of the research indicate that there was a significant correlation at a level of 95% with a correlation of 497% between the temperature and accident occurrence in March alone, and in other months, no significant and direct correlation was seen between the temperature and the accident rate. The results show that due to the highest accident rate in September and considering the important role of traffic in the occurrence of internal traffic accidents this month, it can be said that the factors of the atmosphere have no major and determining role. It is considered as a second-rate factor.

Every year many people incur huge and often unavoidable damages because of accidents in roads of the country. This issue causes that, those involved in transportation focus on road safety subject. But the important issue in this area is that in order to increase the safety of roads it must be invested on which cases? So, in this paper, the effective factors in road transportation of the country have been studied using multivariate statistical analysis approach. Therefore, at first, effective variables on road transportation of the country have been specified and then principal factors have been extracted by factor analysis method. Moreover, the provinces of the country have been ranked according to a general index by concidering the obtained factor scores. Finally, trend of changing the general index were drawn and analyzied for some provinces from 1387 to 1392.

In today's world of global markets industry, Companies cannot survive without considering competitors' moves and progress because they are part of a supply chain and the success or failure of any member of the chain affect the other members. In this paper, the two echelon supply chain with multiple products and a producer as well as a distributor and several customer cases has been investigated.  In the first part of the chain, just one type of vehicle was applied and the second parts of the chain two types of vehicle were used. The proposed model for this study is an integrated mathematical model of mixed integer programming. This is considered to minimize overall costs which incluses shipping cost, maintenance cost, inventory cost and the penality cost for lack of inventory. This case study concentrates on the sent rolls (produced by Mobarakeh Steel Company) to Structure Gostar Saipa Co. (S.G.S) and then after to automotive parts manufacturer. The "Imperialist Competitive Algorithm solved in 20 different sizes was applied, and its results (in small size) were compared with the software GAMS results.

In this paper، a supply chain model including production and distribution of perishable crops is introduced. Echelons of the supply chain are farms، fridges and wholesales. Furthermore، the demand can be responded by imports. The planning horizon is finite. Due to the perishable nature of the crops the harvested crops can be held no longer than pre-determined periods. The purpose of this model is to determine optimal planning for production، holding and transportation of each item in each period in order to the total cost is minimized. This model is applied for the case of potato، onion and tomato. The numerical results show that a decrease in total cost and consequently in price of each product can be made via using this model. Saving in water sources is another result of this model. Sensitivity analysis is done to investigate the effects of the key parameters on price and amount of import.

Economic growth is a fundamental basis for macroeconomic policies of any country and energy is one of the essential and main factors of economic growth in any society. In Iran، transportation sector has the second- highest petroleum product consumers among other sectors. The land taransport sector (road and rail) has about 92% of total energy consumption، the main part of this consumtion is related to road transport subsection. This paper reviews factors effecting Iran’s road transport sector energy demand and then by OLS method estimate energy demand in this sector for the period of1978-2013. Results show that inventory of vehicles has a significant positive effect on demand energy. The price elasticity of gasoline and natural gas is significantly negetive. The price elasticity of gas oil has not a significant effect on transportation sector energy demand during the period of study. The income elasticity of energy demand is positive and significant.