The phrase "around megacities" is correct and usable in written English.
It can be used to refer to areas or regions that are in proximity to or surrounding large urban centers known as megacities.
Example: "The environmental impact of urban sprawl is particularly evident around megacities, where infrastructure struggles to keep pace with rapid population growth."
Alternatives: "in the vicinity of megacities" or "near megacities".
As we drove around the megacity, Omojoro described his recent history in a harsh, hoarse voice that seemed to have been seared by the polluted air.
But three ambitious local graduates have spotted a lucrative business opportunity in the thousands of black and yellow autorickshaws that transport more affluent Mumbaikars around the megacity.
5 30 p.m. | Postscript | While in Manila, Harish Hande and I escaped from the energy summit briefly and were driven to Calauan, a 5,000-family 5,000-family "village" at the base of a foresettlementain, built for people displaced by disasters in and around the megacity.
The two production models in the family, the i3 and i8, represent the extreme poles of BMW – the former is an all-electric urban run-around designed for dense megacities, while the latter is a part-electric high-performance car.
There are 28 of these megacities around the world.
There tends to be a future view of mobility that centres around high-rise megacities and high-tech transport systems - hover cars, jet packs, railroads in the sky.
Exemption from London's congestion charge, free parking in some urban areas and the ability to zip around congested Chinese megacities that heavily restrict petrol-powered cars are all selling points.
"With growing socio-political tensions in many other megacities around the world, Tokyo should not only retain its lead in the global safety rankings but actually move further ahead of its rivals," he said.
In a study of 29 megacities around the world, Keys found that 19 relied on evaporation and transpiration from land He singled out as the most vulnerable Karachi in Pakistan and China's Shanghai, Wuhan, and Chongqing.
