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Publish Date: 1 April 2009
Activities involving transportation are inherently more sensitive to weather events than activities that are located in a single place. Consider an individual contemplating a ten minute walk to his favourite coffee shop: indoors, he is not particularly weather-sensitive but once outdoors, the situation changes substantially.
Bulletin nº Vol 57 (4) - 2008
Publish Date: 1 October 2008
by Xu Tang Urbanization is growing rapidly worldwide. At present, 3.2 billion people live in cities, accounting for about 50 per cent of the total population. It is estimated that the number of people living in cities will increase to 5 billion in 2030, which will be about 61 per cent of the total population.