This article explores the development of previous models to determine hubs in a competitive environment. In this paper, by comparing parameters of the ticket price, travel time and the service quality of hub airports, airline hubs are divided into six categories. The degree of importance of travel time and travel cost are determined by a multivariate Lagrange interpolation method, which can pla...

BACKGROUND This study prospectively assessed the occurrence of clinical and subclinical schistosomiasis, strongyloidiasis, filariasis, and toxocariasis, and the screening value of eosinophilia in adult short-term travelers to helminth-endemic countries. METHODS Visitors of a pre-travel health advice centre donated blood samples for serology and blood cell count before and after travel. Sample...

in this paper the factors having influence on travel demand to iran are paper explored. the hypothesis of the research specifies the variable of “domestic upheavals and insecurity” as the most significant obstacle to expansion of the demand for travel to iran. to test the above hypothesis, first several demand models that have been proposed to study demand for tourism in different countries, ar...

BACKGROUND Studies carried out on specific travelers' groups such as students describe an increase in the consumption of alcohol and drugs during travel and vacation time. The present study investigates the risk behaviors (alcohol and drugs) in a general adult population in Switzerland travelling abroad who visited a travel clinic before departure. METHODS This retrospective study was conduct...

BACKGROUND Increased travel abroad has a significant impact on the incidence and prevalence of Sexually Transmitted Infections (STIs). Previous reviews have focused on the knowledge, attitudes and behaviour of tourists and acquisition of STIs. Less is known about the impact on tourism operators in countries visited by tourists. The aim of this review is to ascertain factors influencing sexual b...

Travellers to rabies endemic countries should be counselled on risk and, in case of high-risk, pre-exposure vaccination is advised. However, it not clear which travellers exactly are at high risk. In this study we determined the incidence possible exposure travel clinic visitors and compliance with pre-travel advice. who visited a Dutch between September 2017 May 2018, were invited participate....

modern world faces a multitude of challenges regarding displacement including high fuel consumption, air pollution, congestion in streets, decrease in physical activities, insecurity of passers-by etc. most of which result from dependence on automobiles and the vehicle-stricken urban forms. planners and public health officials are turning to land planning and urban design for help in reducing a...

Nowadays air travel is one of the most popular traveling as its advantages. A disabled should commute easily, so Facilitation of air traveling is vital. A disabled needs various services which depends on travel steps. These needs should have supported by travel agencies and airport staffs. Therefore, planners must be considering not only physical environment but also well services. This paper i...

BACKGROUND Whereas the safety of teens in early licensing countries has been extensively studied, little is known about the safety of pre-license teens in late licensing countries, where these teens also may be at risk. This risk exists because of the combination of a) increasing use of travel modes with a high injury risk, such as bicycles and mopeds, b) inexperience, and c) teens' development...