73
development in an actual city show that urban development and road development
occur in small segments, resulting in a patchwork of various urban areas connected by a continuously expanding road network.
The land use planning concept is shown in Fig. 4.20. First, the City Planning
Area where the City Planning Act is in effect is designated. We divide the City
Planning Area into Urbanization Promotion Area (UPA) and Urbanization
Control Area (UCA). UPA is divided into 12 land use zones including 3 commercial, 3 industrial, and 6 residential zones. District Plans are developed for
some areas that need more detailed, special regulations and projects. Buildings
are regulated through density and from regulations. We must emphasize that
most zones within UPA in the Japanese land use planning system allow a mix of
uses including agricultural even in Urbanization Promotion Areas. That is, the
nature of the Japanese urban land use system itself includes grey or vague aspects.
Murayama (2016, 2017) explains the Japanese urban land use planning system
and practices more in detail.
Urban development projects in the Japanese urban planning system contribute
to shaping the grey character of the Japanese urban environment. One such urban
development project is called “mini” development. Residential or agricultural
Fig. 4.19 Fringe of Tokyo’s suburban city
4 The Value of Grey
development in an actual city show that urban development and road development
occur in small segments, resulting in a patchwork of various urban areas connected by a continuously expanding road network.
The land use planning concept is shown in Fig. 4.20. First, the City Planning
Area where the City Planning Act is in effect is designated. We divide the City
Planning Area into Urbanization Promotion Area (UPA) and Urbanization
Control Area (UCA). UPA is divided into 12 land use zones including 3 commercial, 3 industrial, and 6 residential zones. District Plans are developed for
some areas that need more detailed, special regulations and projects. Buildings
are regulated through density and from regulations. We must emphasize that
most zones within UPA in the Japanese land use planning system allow a mix of
uses including agricultural even in Urbanization Promotion Areas. That is, the
nature of the Japanese urban land use system itself includes grey or vague aspects.
Murayama (2016, 2017) explains the Japanese urban land use planning system
and practices more in detail.
Urban development projects in the Japanese urban planning system contribute
to shaping the grey character of the Japanese urban environment. One such urban
development project is called “mini” development. Residential or agricultural
Fig. 4.19 Fringe of Tokyo’s suburban city
4 The Value of Grey