The mega-city of Istanbul is situated on the geographical interface between the Middle-East and Europe and is the most populous urban settlement in Europe, with its almost 16 million inhabitants. By the 2030s, it is expected that the population will exceed 20 million people.

Ankara is the capital of Turkey and is Turkey’s political and administrative core. With a current population of 5.4 million, the capital has experienced rapid growth during recent decades.

Bangkok is Thailand’s capital city and biggest urban centre, and one of the world’s megacities. It is part of the Bangkok Metropolitan Region (BMR),which is further composed of the Bangkok Metropolitan Area (BMA) and its five adjacent provinces, covering an area of 7,758 km2. The rapid urban expansion of Bangkok, matched with its population growth over the past few decades, has left many issues unresolved. With the city struggling in maintaining pace with urbanisation trends and match it with the provision of the necessary public infrastructure.

Durban is located on the east coast of KwaZulu-Natal (KZN) Province in South Africa and eThekwini Municipality is the local government responsible for management and service provision across the eThekwini Municipal Area. Durban is the third most populous city in South Africa and the largest city in the South African province of KwaZulu-Natal. Durban forms part of the eThekwini Metropolitan Municipality and has a population of about 3.9 million.

Lagos is the largest urban agglomeration in Nigeria and one of the biggest and fastest growing megacities in the world, with population estimates ranging from 12 to over 20 million people. The built-up area is situated along the banks of the western portion of Lake Lagoon and expands to the north, following the expressway to Abeokuta and Ibadan. Although the urban extension is mainly contained within the administrative boundaries of Lagos State, the city has begun to stretch beyond its borders, expanding in the direction of the main transport routes into Ogun State.

Abeokuta is the largest urban centre and capital of Ogun State, located in the South West Geopolitical Zone of Nigeria. Ogun State lies to the north of Lagos State, to the west of Ondo State, and to the south of Oyo State and Osun State. Abeokuta is built in the centre of the Lagos-Ibadan extended urban region or conurbation, and forms part of the larger metropolitan economic area. This strategic location, matched with the presence of diverse local resources, rapid population growth and enhanced political status has generated dynamic economic activities.

Designated as a catalyst development corridor, Iskandar Malaysia is one of Malaysia’s fastest growing areas in terms of population and economic activity. By 2025, the population is expected to have doubled from 1.6 million in 2006 to 3 million, whilst the GDP is expected to grow at an annual rate of change of 6 per cent. Established in 2006, Iskandar Malaysia was largely funded by the federal government’s investment arm, Kazanah Nasional Berhad.

Melaka State is strategically located on the southwestern coast of the Malaysian peninsula, facing the Straight of Melaka. It lies between the capital, Kuala Lumpur and Johor Bahru, which connects to Singapore. Melaka State has a population of 910,000 and an average annual population growth rate of 1.3%.

Bandung is the capital of West Java Province and is the fourth-largest city in Indonesia after Jakarta, Surabaya and Medan with 2.5 million inhabitants. Its metropolitan area, Greater Bandung (Bandung Raya), or is also known in different name as Bandung Basin (Cekungan Bandung), consist of the Municipalities of Bandung and Cimahi and three regencies (Bandung, West Bandung and Sumedang). This metropolitan area  is the third-largest metropolitan area in the country with a population of more than 8.5 million inhabitants.