While benefiting from the efficient and convenient urban life brought by the highly urbanized society, people are suffering from traffic congestion, energy shortage, and air and water pollution. In metropolises, these problems might aggravate city residents’ mental stress, which has aroused a general concern on physical and psychological health. In this issue, we hope to improve urban spatial structure and enhance the quality of urban infrastructure, architecture, and landscape through research and design to form a slower-paced lifestyle, celebrate cultural identity, and create a more livable city environment that enjoys a smart use of space, a resource-saving development, a harmony between man and nature, and, a running efficiency of cities in which people feel pleasant and comfortable.