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【正文】 (2000)projected that by 2050 the average citizen of the world will travel(by all modes)as much overall distance as the average Western European did in 2000 to 2050, the mobility of the average American will increase by a factor of , to 58,000 km/ and Victor(2000)forecast that the average Indian will increase his/her travel to 6,000 km/year by 2050, parable to the level of West Europeans in the early total, in 2000, people traveled 23 billion km, and by 2050 that figure is expected to grow to 105 billion km(Schafer and Victor, 2000).At the same time, urban population continues to expand, and the number of megacities—cities with over 10 million inhabitants—is expected to double within a generation(World Bank, 2002).As cities grow and bee richer, vehicle ownership and use tend to increase , in turn, has an influence on travel speed, congestion, and air above trends have resulted in wide discussion about sustainable transportation in metropolitan broad terms, movement to sustainable urban transportation involves accessibility and the generation of wealth by costeffective and equitable means, while safeguarding health and minimizing the consumption of natural resources and the emission of pollutants(Kennedy, Miller, Shalaby, Maclean, and Coleman, 2005).Frequently, this has been feasible with wide use of public transportation in general, and rapid rail transportation in example, there are cities such as Tokyo and Hong Kong that invested in public transport to provide extensive, highquality, public transport systems before private vehicle ownership was high(Barter, Kenworthy, and Laube, 2003).In these cities, bus travel was at a high level until rapid mass transit was built and became , personal vehicles are an integral part of modern city life, providing a number of benefits to individuals and society no matter how they are used—as single occupancy vehicles or as shared or shuttle , as pointed out by Kennedy et al.(2005), planning for a new generation of sustainable personal vehicles is critical for the sustainable development of technical innovation and the application of concepts of industrial ecology, there are several possible candidates for the sustainable personal vehicles of the future(Kennedy et al., 2005).In addition, it is likely that many applications of intelligent transportation systems will substantially affect future urban applications include, for example, demand management(demandresponsive public transportation, car pooling and sharing, access control, roaduse charging), trip planning systems/realtime traveler information, and signal priorities for public study current and future personal transportation in megacities, 15 metropolitan areas worldwide were selected metropolitan areas were classified by region as follows: North America: Chicago, New York Europe: London, Moscow, Paris Central and South America: Buenos Aires, Mexico City, Rio de Janeiro, Sao Paulo India: Bangalore, Calcutta, Delhi, Mumbai China: Hong Kong, Shanghai For each metropolitan area, a set of key indicators affecting future transportation was includes population and health, Private motorized passenger vehicles, Public transportation modes operated, Modal split, Travel speed by mode, Road population and wealth, Size of the population and wealth of the population play vital , Figure 1 and Table 1 present the expected growth in population of the examined megacities, and Table 2 presents the expected growth in wealth per capita for the countries in which the megacities are results indicate that the highest proportional increases from 2005 to 2025(more than0%)is predicted for Bangalore, Calcutta, Delhi, Mumbai, and Shanghai, followed by modest increases(1218%)for Chicago, Hong Kong, Mexico City, Rio de Janeiro, and S227。o , no substantial decrease in the reliance on personal vehicles is foreseen in the next 15 years anywhere in the examined the contrary, an increased role of personal vehicles is forecasted for the megacities in India, China, and above trends are based on treating the different transportation modes as independent and exclusive , there is growing implementation and use of new mobility networks—integrated networks that provide a variety of connected and ITenhanced transportation options such networks are expected to reduce the reliance on personal vehicles, the magnitude and nature of this effect remain to be ascertained.