Poll: What is Asia's biggest urban issue?

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As Asia economies power ahead, urban populations in the region are fast expanding with more people moving to the cities for opportunities.

However, this explosive growth has left many Asian cities grappling with issues such as overcrowding, transport congestion and environmental degradation.

According to consultancy firm Arcadis' Sustainable Cities Index, Seoul, Hong Kong and Singapore are ranked as the world's top 10 most sustainable cities. However, the region's emerging cities such as Jakarta, Manila and Mumbai find themselves on the other end of the spectrum, the report released in February showed.

In your opinion, what is Asia's most urgent urban development challenge? Let us know in the poll below:

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Not a Scientific Survey. Results may not total 100% due to rounding.