نتایج جستجو برای: road transport

تعداد نتایج: 339979  

2006
Francesco Russo Antonino Vitetta Agata Quattrone

Freight transport plays a fundamental role in the economy of every country. The performance of the European transport sector has been in line with the expanding economy. From 1995 to 2004 total European freight transport in the 25 Member States examined grew from 2,967,000 to 3,804,000 million tkm (+28 %). Considering only inland transport, it appears that the considerable growth was almost ent...

2000
Niklas Sieber

This paper reviews the economic effects of the introduction of donkeys and compares their cost efficiency with other transport interventions undertaken in the region. The use of donkeys generated larger economic benefits than the construction of a feeder road. Regarding cost efficiency donkeys were comparable with road investments. The donkeys in Makete were only used for production-related tra...

Journal: :J. Intellig. Transport. Systems 2012
Gideon Mbiydzenyuy Jan A. Persson Paul Davidsson

Transport telematic systems, also known as intelligent transportation systems, can be expensive to implement but the services they provide may offer substantial benefits. However, what services the system can provide depends on the architectural choices made, which also affects the cost of the system. We propose an optimization model to support a more informed decision before investing in a mul...

Journal: :Public health 1991
S P Wolff C J Gillham

The most visible aspect of the relationship between transport and health is in the realm of road traffic accidents (RTAs). But the effects of transport policy upon the public health are much wider-ranging. They include exacerbation of social and health inequalities, separation from directly health-protective amenities and social isolation, as well as health damage by physico-chemical pollution....

2014
Junjie Wang Dong Wei Kun He Hang Gong Pu Wang

Using road GIS (geographical information systems) data and travel demand data for two U.S. urban areas, the dynamical driver sources of each road segment were located. A method to target road clusters closely related to urban traffic congestion was then developed to improve road network efficiency. The targeted road clusters show different spatial distributions at different times of a day, indi...

Journal: :international journal of supply and operations management 2014
mustapha oudani ahmed el hilali alaoui jaouad boukachour

the exponential growth of the flow of goods and passengers, fragility of certain products and the need for the optimization of transport costs impose on carriers to use more and more multimodal transport. in addition, the need for intermodal transport policy has been strongly driven by environmental concerns and to benefit from the combination of different modes of transport to cope with the in...

Journal: :جنگل و فرآورده های چوب 0
آزاده دلجویی کارشناس ارشد مهندسی جنگل دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران احسان عبدی دانشیار گروه جنگلداری و اقتصاد جنگل دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران باریس مجنونیان استاد گروه جنگلداری و اقتصاد جنگل دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران

forest roads are directions in natural habitats that used to transport wood products, secondary forest products and recreation. constructing forest roads causes trees clearing with specified width thus lead to direct or indirect changes in forest ecosystems and forest environment. this study aims to assess the changes of diversity and richness indices in main and secondary forest roads in a par...

Journal: :Bulletin of the Moscow State Regional University (Natural Sciences) 2019

2001

Overseas Road Notes are prepared principally for road and transport authorities in countries receiving technical assistance from the British Government. A limited number of copies is available to other organisations and to individuals with an interest in roads overseas, and may be obtained from: Limited extracts from the text may be reproduced provided the source is acknowledged. For more exten...

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