نتایج جستجو برای: transport and recreation travel
تعداد نتایج: 16880514 فیلتر نتایج به سال:
The implementation of the European Union Water Framework Directive (WFD) requires nationally generalizable estimates of the benefits of protecting inland and coastal waters. As an alternative to benefit transfers and meta-analyses, we utilize national recreation inventory data combined with water quality data to model recreation participation and estimate the benefits of water quality improveme...
OBJECTIVES After having conducted two studies of the effectiveness of workplace travel plans for promoting active travel, we investigated health and transport practitioners' perspectives on implementing workplace travel plans to share some of the lessons learnt. The objectives of this study were to describe perceived elements of effective workplace travel plans, barriers and enablers to workpla...
Today, with the increasing use of cars and intense traffic and pollution in cities, sustainable urban transport has become one of the main concerns of managers and urban planners. So identification the patterns of travel is one of requirements to achieve the sustainable transport management. One aspect of travel is the number of daily trips and identification of the factors affecting it. The ma...
Considering the current problems in the field of transportation in Tehran, this paper attempts to develop a sustainable technology assessment model in Tehran’s urban transport sector. The research was carried out in a mixed method. In the qualitative phase, using the principles of the data theory of the foundation, identifying the important components in the technology evaluation and compiling ...
The travel cost model is the standard model used in the recreation demand literature. This model assumes that the decision on the number of trips to a particular site in a given period (a season, for example) is determined at the beginning of the period. For certain types of recreation activity, this decision may be more appropriately modeled as a sequential process, in which the decision of wh...
Background and Objectives: Traffic and transport, as a political and social phenomenon, play an important role in the quality and socio-economic structure of a society. This phenomenon is one of the foundations for modern urban life and the social needs of populations. The aim of this study was to identify the viewpoints of urban residents and key informants in Sanandaj on the impacts of ...
The task of modeling the recreation demand for geographically large sites, such as rivers and beaches or large parks with multiple entrances, is often challenged by incomplete information regarding the access point used by the individual. Traditionally, analysts have relied upon convenient approximations, defining travel time and travel distances on the basis of the midpoint of a river or beach...
Throughout the world, there are many threats to existing coral reefs. Global warming (1), mining (2), overfishing (3), and water pollution (4) all threaten the viability and health of coral reefs. Although these threats are well documented, programs to protect coral reefs are spotty and underfunded. Advocates for coral reef protection argue that there are many benefits to maintaining coral reef...
abstract microbial contaminants transport to groundwater is a serious environmental problem that can result in large outbreaks of waterborne diseases. some of bacteria can travel from vadose zone and cause contamination of groundwater resources. thus, an accurate prediction of transport and fate of pathogenic microorganisms in unsaturated soil is needed to protect groundwater resources. the mai...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید