It means emphasizing people's happiness and quality of life, as well as the beautiful and livable environment of the city. The concept of a happy city embodies Jiangyan's pursuit of a happy life for residents and its expectation for urban development. Area 1 refers to the development of an area as the center and landmark of a city in urban planning. This area usually has special geographical location, historical and cultural value or economic development potential, and is regarded as the "facade" and "core" of the city. The development of the pioneer area will often lead and drive the economic, cultural and social development of the surrounding areas. Happy city refers to the development slogan and urban vision of Jiangyan District, Yancheng City, Jiangsu Province, China. Jiangyan District of Yancheng is committed to building a modern city that is livable and suitable for business with the goal of "happiness surpassing the city and beautiful new Jiangyan".