Khon Kaen is part of Thailand's National Economic and Social Plan along with Songkhla, Nakhon Ratchasima, Chonburi and Chiang Mai. Due to targeted state investment, the city of Khon Kaen has improved infrastructure without the overcrowding that is generally found in developed cities. Many of the hotels and popular nightlife spots are located close to the city centre while the majority of the attractions are spread across the province.