نتایج جستجو برای: urban transportation

تعداد نتایج: 222901  

2005
Sanjay K. Singh

Cities play a vital role in promoting economic growth and prosperity. The development of cities largely depends upon their physical, social, and institutional infrastructure. In this context, the importance of intraurban transportation is paramount. This article provides an overview of urban transport issues in India. Rather than covering every aspect of urban transportation, it primarily focus...

Journal: :J. Geographic Information System 2011
Wei-Bin Zhang

This study introduces space, transportation, and money into an economic growth model. Growth theory neglects the importance of transportation on economic growth and transportation economics fails to properly explain how changes in transportation conditions (such as technological improvement, infrastructure investment, and oil prices) affect long-term economic growth. By proposing a growth model...

2012
Jian Zhou Jianyi Lin Shenghui Cui Quanyi Qiu Qianjun Zhao

It is important to understand the settlement morphology and its transition process in the rapid urbanization cities of developing countries. It is equally important to learn about the relationships between transport energy consumption and the transition of settlement morphology and its underlying processes. Finally, if the existing transportation technologies are already adequately meeting the ...

2008
Paulo A. F. Ferreira Edgar F. Esteves Rosaldo J. F. Rossetti Eugénio C. Oliveira

As contemporary intelligent transportation systems are becoming a reality in our everyday’s life and future urban transportation brings about concerns of a wide range of new performance measures, multidisciplinary teams are more and more faced with the need to work collaboratively so as to meet those demands. This paper reports on the specification of the MAS-Ter Lab framework, emphasising on i...

2000
Yves Zenou

We study the role of unemployment in the context of the endogeneous formation of a monocentric city in which firms set efficiency wages to deter shirking. We first show that, in equilibrium, the employed locate at the vicinity of the city-center, the unemployed reside at the city-edge and firms set up in the city-center. We then show that there is a ‘spatial mismatch’ between location and jobs ...

2015

The need for continuing, comprehensive, urban transportation planning on a cooperative basis among all levels of governmental units is emphasized by the growing importance of transportation as a major segment of our economy. Transport facilities have linked our nation together socially, economically, and politically. As our national popula­ tion and economic activity increase in the future, so ...

2013

Climate change is one of the greatest environmental, economic, and social challenges of our time. Urban transportation has had a major negative impact on our environment—most of our air pollution comes from transport. This paper explores ways to move toward a more sustainable transport system by focusing on creating a more efficient and livable city and improving the environmental efficiency of...

2010
Jonathan E D Richmond

TedChing in substantive areas ofphnning has become increasingly calculative. Students have been taught to use techniques, but not to ask whether they are asking the right questions A new course whlch attempted to instead emphasize a meditatlve approach to transportation planning is described. A theme of exposing and criticizing assumptions-bubble bursting--lies at the heart of the course. Philo...

1999

This paper describes an innovative transportation system based on non-polluting autonomous vehicles. The proposed solution lies between high-speed outdoor moving walks and low-speed urban cars platooning. It integrates the service modes and advantages of both, while avoiding their main drawback, which are respectively the lack of scalability and the usage of traditional automobiles. The present...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1960
L M Boelter M C Branch

Anhydrous sodium acetate will serve as the catalyst with maleic, chloro-maleic, and methylglutaconic anhydrides, giving yields of 0.54, 0.22, and 1.02 moles CO2 per mole of anhydride. The products of all these reactions are black and brown-black, are soluble in acetone, acetophenone, dioxane, and aqueous alkali and are insoluble in benzene, toluene, ether, chloroform and carbon tetrachloride, a...

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