81,039 research outputs found

    Dawn of autonomous vehicles: review and challenges ahead

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    This paper reviews the state of the art on autonomous vehicles as of 2017, including their impact at socio-economic, energy, safety, congestion and land-use levels. This impact study focuses on the issues that are common denominators and are bound to arise independently of regional factors, such as (but not restricted to) change to vehicle ownership patterns and driver behaviour, opportunities for energy and emissions savings, potential for accident reduction and lower insurance costs, and requalification of urban areas previously assigned to parking. The challenges that lie ahead for carmakers, law and policy makers are also explored, with an emphasis on how these challenges affect the urban infrastructure and issues they create for municipal planners and decision makers. The paper concludes with strengths, weaknesses, opportunities, and threats analysis that integrates and relates all these aspects.info:eu-repo/semantics/publishedVersio

    Population Growth in European Cities: weather matters – but only nationally

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    This paper investigates differences in the rate of growth of population across the large city-regions of the EU12 between 1980 and 2000. The US model which assumes perfect factor mobility does not seem well adapted to European conditions. There is evidence strongly suggesting that equilibrating migration flows between cities in different countries are highly constrained in the EU. However, quality of life motives do seem to be a significant and important feature of differential population growth rates if measured relative to national rather than EU12 values. Once other factors are allowed for, a systematic and highly significant factor determining rates of urban population growth is climatic variation. Cities with better weather than that of their countries have systematically tended to gain population over the past 20 years once other factors – including natural rates of increase in the areas of each country outside the major cities - are allowed for: there is no such effect for climate variables if expressed relative to the value of the EU12 as a whole. On the other hand, there is evidence that the systematic spatial gains from European integration are reflected in a city’s population growth. The results are tested for spatial dependence and remain robust.Labour mobility; compensating variations; growth; cities; quality of life;
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