explain any one important city of north america
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Answer:
The city with the largest population in North America is Mexico City, Mexico. The most populous country is the United States (2010 census).
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WASHINGTON, D.C.
Experts in the smart cities seem to agree that smart mobility is critical to improving the quality of life for citizens while reducing greenhouse-gas emissions from the transportation sector. D.C. came out in second behind only New York in the use of biking, walking, and public transit (54.6%) for daily commuting. D.C. also has among the highest educated population in North America, while having one of the lowest Gini indexes (0.433). For those unfamiliar, the Gini index measures the amount of income inequality and the lower the score, the better.
D.C. is not shying away from big data and social media. They recently launched grade.dc.gov to mine social media to monitor residents complaints and concerns and suggestions across numerous social-media platforms. Once aggregated, the data is fed to the appropriate municipal agency to determine how they may respond to citizen concerns. Furthermore, in a smart approach to transparency, this data is converted to letter grades for the different agencies with the grade being available to the general public.