Urban Regions : Ecology and Planning Beyond the City

(Jacob Rumans) #1

18 4Built systems, built areas, and whole regions


Degree of regional land-use planning suggested by
metro-area form and urban-region ring attributes

Attribute suggesting regional land-use planning
None of the
11 regional-
planning
attributes

Te h r a n*
Chicago+
San Diego/Tijuana+
Philadelphia+
Nairobi+
Kuala Lumpur+
Bamako+
Iquitos•
Cuttack•
Kagoshima•
Erzurum•
Ulaanbaatar•
East London•
Rahimyar Khan•
Atlanta•

Bangkok





Bucharest+Santiago





Por

tland





Berlin+Sapporo+Nantes





Stockholm+Ottawa•Seoul

*
Cairo

*
Barcelona+Mexico City





Edmonton





Abeche





Samarinda





Tegucigalpa





Canberra





Brasilia+London





Moscow





Beijing

*
Rome+

High

Compact metro-area
form
Three or more
greenspace wedges
Symmetrical
metro-area lobes
Metro-area with
abrupt border
Urban growth
boundary
Greenbelt
Ring road
Distinct separate
communities
Extensive canal/irrigation system
Close-by forest to
protect water supply
Large woods throughouturban-region ring
Medium Low

Figure 7.11Attributes suggesting regional land-use planning relative to the degree
of regional planning suggested. The conspicuous spatial attributes highlighted
relate either to the form of the metropolitan area or to patterns in its surrounding
urban-region ring (see Color Figures 2--39). Also see captions for Figures 7.2 and 7.10.

regions. However, without the checks-and-balances such units provide, regional
plans could be brilliant, a disaster, or somewhere in between.
[A9]Aquarter of the urban regions manifests two or three attributes that suggest regional
planning(Figure7. 11).
Compared with the prominence of a single attribute suggesting regional plan-
ning, 2--3 attributes may indicate a greater role of regional planning in the evo-
lution of a metropolitan area and urban region. They may also represent a better
balance among competing strategies.
[A10]Acompact metropolitan-area form in a third of the regions is the most frequent
attribute suggesting regional planning, and a ring highway in a sixth of the regions is
the next most-frequent attribute(Figure7. 11).
Acompact metro-area form means the near absence of major built lobes,
major greenspace wedges, and an elongated spread. As described above, major
lobes are normally along transportation routes and elongated forms along
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