Tag Results for megacity (36)

  1. Smog Blog: Mega Mexico City in Tough Pollution Fight

    Vacationing here in Mexicoâ''s Federal District, one of the worldâ''s biggest of megacities, you canâ''t ignore the bad air. Last year, in IEEE Spectrum magazineâ''s special issue about megacities, Erico Guizzo drew attention to the innovative way Sao Paulo has introduced special reserved bus lanes to make bus travel speedier and discourage private cars. In Mexico Cityâ''s Insurgentes, the main thoroughfare that traverses the city much as Broadway cuts diagonally all the way up Manhattan, lanes reserved for express buses also are to found.

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  2. U.N.: Global Population Migrating to Cities

    The United Nations today publicly confirmed what Spectrum magazine has been telling readers this month: people the world over are moving to cities, creating enormous urban centers with new challenges and opportunities. In our special report on Megacities: A How-To Manual, Spectrum's editorial team reports back from some of the planet's largest communities on what makes big cities tick and how the accelerating population shift is affecting them going forward. In its annual State of World Population report, the United Nations Population Fund (UNFPA) said that half the world's population -- …

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  3. Megacities Have Mega-Infrastructure Below

    Sometimes you have nowhere to go but down. As part of our special package this month on the future of big cities, we asked Associate Editor Sandra Upson to look at the foundation of booming urban centers, literally. She found that there's more to megacities than meets the eye. When urban planners can no longer find the surface space to install vital infrastructure components, they go underground, she writes in "How to See the Unseen City". The primary example of a major city expanding into its own depths is New York, Upson notes. It followed the lead …

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