It is not only that a higher percentage of people are living in large (mega)cities. Also, cities are growing in size rather spectacularly. In 1900, there were only 12 cities with more than 1 million inhabitants. In 1950, there were already 83. Even more telling are developments since 1950: in 2011 500+ cities went beyond and above 1 million people. What's more: by 2025, China alone will have 221 cities with more than 1 million inhabitants. This triggers extra demand for intelligent monitoring, ranging from sensors checking water quality to sensors checking street lighting.
展开▼
