جستجوی مقالات مرتبط با کلیدواژه "travel" در نشریات گروه "عمران"

The expansion of air, sea, and land transport in terms of facilities, passengers, cargo transportation, speed, accessibility, and network development are increasing daily, which can have disadvantages beside the benefits of its development. The most prevalent of which in recent years are outbreak, intensification or causing disease by the transport system. The restrictions imposed by diseases such as Covid-19 on the transport system during recent years have led the study to investigate the structural dimensions of transport and disease studies in a larger dimention and to identify the types of common diseases that are closely related to the transport system. In fact, this scientometric review provides an overview of transportation and disease studies at the core of the Web of Science (WoS) search engine using the Vosviewer and Bibliometric software. In this study, descriptive analyzes have been used to examine the temporal development trend of the number of studies, identify effective journals and articles. Conceptual analysis is organized with keyword co-occurrence analysis of research fronts to identify and classify them. Based on co-occurrence analysis, the research fronts of transportation and disease studies are classified into 4 main categories: "Infectious Diseases", "pandemic diseases", "vector-borne Diseases", and "Chronic Diseases".

Transportation is a basic humanitarian need in which, under the aviation sector, the youngest, safest and most modern means of transportation. Basically, the passengers needing information about that company and its services to select an airline company. The main objective of this research is to determine the socio-economic factors associated with the desire of citizens to travel with airline companies in Kermanshah province. The method of conducting this research is survey type. The statistical population consists of citizens who travel to airlines using 6 airline companies (Sky, Iran Air, Zagros, Qeshm Air, Caspian, Iran Air) in Kermanshah, where the number of citizens is almost The week length is approximately 5,000 people, using the Morgan table, 291 people have been selected through available sampling. The results of the research show that there is a significant relationship between socioeconomic factors, social trust, customer satisfaction, quality of service, information about specific companies, travel destination, delay in flights and social class with a desire to travel

Traffic congestion as a source of daily delays, degradation of environmental quality, and nonrenewable energy consumption is said to be a major trouble in most of the world’s cities. Being discontent about traffic congestion usually persuades transportation policymakers to propose measures to reduce it. Many studies have shown that individuals’ responses to urban traffic congestion, as usually assumed by policymakers, are significantly different from their respected actual behavior. This paper adopts a behavioral approach to examine the role of travel-related variables on the mentioned difference using design of experiments principles and logit models. In this approach, five policies namely cordon pricing, parking pricing, increasing fuel cost, transit time reduction, and transit access time reduction were investigated. This study uses the stated preferences of individuals who regularly use their private cars to access their job locations in the Tehran central area to calibrate seven models of non-car mode consideration. Furthermore, the role of travel-related variables is also addressed in such mode change. Analysis of the effects of the travel related variables in considering non-car modes shows that the contribution of socio-economic variables are greater than travel-related variables in all of the investigated modes. The results show that while the contribution of travel-related variables is 43% for walk and ride considerers and 31% for taxi considerers, it is 12% for considering motorcycle, 10% for public transit accessed by either car or taxis, 5% for taxi caught by phone and 1% for taxi accessed by car.

One of the defects of bus systems in Iran is that the lines are designed like subway systems and prevents cities to use bus line , s flexiblity. In this study, bus network of Qom would be redesigned by using inovative way. In this method the lines would be designed by combining lines and routes. Then new bus lines were modeled in TransCad software. Analysing of outputs shows that parametrs like attracting travelers, travel speeds had been enhanced and travel time decreased significantly.