While the news has been full of warnings about the rapidly deteriorating air quality of cities in the developing world, David Agren examines how one megacity has managed to drastically clean its polluted air over the past twenty years.
"With urbanization advancing, economies expanding, and climate change a concern, Mexico City has emerged as an unlikely environmental example for cities in developing countries suffering similar air quality issues," says Agren.
"Mexico City recorded only eight days with air quality considered 'good' in 1992. That compares with 248 'good' air days in 2012, reflecting the success of initiatives to relocate industry, kick clunkers off the capital's streets, encourage cleaner technologies, and expand public transit and cycling options."
Despite the marked improvements, levels of particulate matter pollution and sprawling development remain a concern for public officials. Guillermo Velasco Rodríguez, director of planning and projects for the Centro Mario Molina, "acknowledges the improvement in air pollution in Mexico City but cautions against prematurely celebrating."
"It sounds good if you compare it to 1992," he says, "but it's not [yet] what we want."
FULL STORY: Model for megacities? Mexico City cleans up its air.
Seattle Legalizes Co-Living
A new state law requires all Washington cities to allow co-living facilities in areas zoned for multifamily housing.
Central Florida’s SunRail Plans Major Expansion
The expanded train line will connect more destinations to the international airport and other important destinations.
NYC Officials Announce Broadway Pedestrianization Project
Two blocks of the marquee street will become mostly car-free public spaces.
Santa Monica Lowers Speed Limits
Posted speed limits will be reduced by 5 miles per hour on dozens of the city’s streets.
For Some, Co-Housing Offers Social and Economic Benefits
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New Map Puts Bay Area Traffic Data in One Place
The Traffic Monitoring site uses community-collected speed and volume data to reveal traffic patterns on local roads.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Heyer Gruel & Associates PA
Caltrans
Los Alamos County
American Planning Association, Sustainable Communities Division
HUDs Office of Policy Development and Research
HUDs Office of Policy Development and Research
City of Cambridge, Maryland
Newport County Development Council: Connect Greater Newport
Rockdale County Board of Commissioners