As a new concept proposed in the Standard for Urban Residential Area Planning and Design (GB50180-2018), it refers to a residential area in which the residents can acquire physical and cultural community services and facilities within 15-minute walk distance. Generally the neighborhood is encircled by urban arterials or block boundaries, with a resident population of 50,000 – 100,000 (about 17,000 – 32,000 dwellings). There are well-equipped facilities in the neighborhood, including cultural activity center, community service center, and sub-district office.