نتایج جستجو برای: poor road transportation
تعداد نتایج: 354120 فیلتر نتایج به سال:
Even though studies investigating the effect of road transportation on haematological parameters in goats from temperate and hot tropical environments are numerous, few studies have focused on the recovery rate following transportation, especially in the hot, humid tropical environment. This study investigated the haematological parameters and oxidative stress response of goats subjected to 7 h...
We present a simple simulation of road growing dynamics that can generate global features as belt-ways and star patterns observed in urban transportation infrastructure. The road growing dynamics consist of two steps: Identifying the maximum transportation potential bewteen two locations within the city, followed by the generation of the least expensive road between these two locations. The sim...
Road traffic congestion is a worldwide issue today. Intelligent Transportation Systems (ITS) seek to alleviate this issue by making an informed use of transportation infrastructure. Most of existing ITS techniques are not applicable in developing regions because of chaotic traffic conditions in developing countries. Hence, it is desirable to develop ITS techniques for developing regions, enabli...
BACKGROUND Few studies have examined potential disparities in access to transportation infrastructures, an important determinant of population health. PURPOSE To examine individual- and area-level disparities in access to the road network, public transportation system, and a public bicycle share program in Montreal, Canada. METHODS Examining associations between sociodemographic variables a...
In recent works on the Internet of Vehicles (IoV), “intelligent” and “sustainable” have been the buzzwords in the context of transportation. Maintaining sustainability in IoV is always a challenge. Sustainability in IoV can be achieved not only by the use of pollution-free vehicular systems, but also by maintenance of road traffic safety or prevention of accidents or collisions. With the aim of...
Road infrastructure in good condition is a key requirement for efficient transportation systems which leads to economic prosperity and improved quality of life. However, road surface conditions deteriorate over time according traffic loads environmental factors. Poor lead congestion, accidents, lost productivity, driver fatigue. This work considers the relationship between pavement vehicle spee...
Background and aims: All over the world, and particularly in industrialized countries, the transport of hazardous materials has till years a continuously increasing trend. Public concern is focused mainly on road and rail transport, since the routes used for road and rail transportation of hazardous substances necessarily come closer and sometimes also cross densely populated areas. In this st...
One of the major obstacles in the process of national development, is the disruption in regional balance construct. As has been noted in some studies the existence of regional inequity leads to domination of some regions to surrounding regions and causing political and economic challenges in developing countries. And given that transportation is one of the components of region, undoubtedly equi...
Although many have advocated a systems approach in road transportation, this view has not meaningfully penetrated road safety research, practice or policy. In this study, a systems theory-based approach, Rasmussens's (1997) risk management framework and associated Accimap technique, is applied to the analysis of road freight transportation crashes. Twenty-seven highway crash investigation repor...
Transportation is basic service required by all citizens. Long route transportation is norm today for transporting goods and persons. Road transport has remained one of the important means of transportation. Increase in population and motorization in the country along with expansion of road network contributes to the number of road accidents, injuries and mortalities, as well as loss of product...
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