Plan Description - City of Tustin

Chapter 2 • Plan Description
2.17.1 Community Structure Concept
MCAS Tustin's history of single use, well defined borders, framed by
existing local and regional arterials lend to establishing a strong identity
and community structure for the area. As described previously, the Plan is
a collection of land uses which will be contained within distinct
neighborhoods on the site. The community structure concept addresses the
major circulation corridors, entries into the site, and other site-wide design
considerations as shown in Figure 2-15, that will provide an overall "look"
or identity for the Specific Plan area.
The following design features are intended to build a community structure
for the Specific Plan:
A. Community Boundaries
The Plan area is defined, from an urban design perspective, as being
generally bounded by Edinger Avenue, Harvard Avenue, Barranca
Parkway, and Red Hill Avenue. These boundaries should reflect a
common definition of signing, streetscape design, and landscaping
treatments. The boundaries of the site shall be visually defined by
vertical plant material, creating a "Community Fence". Major entry
points shall be punctuated by a horizontal massing of plants and trees
to establish "Community Gates", as shown in Figure 2-16, Portal
Intersection Detail.
B. Edge Treatments
The visual and physical access to the Plan area shall respond to the
internal land use and site activity. Generally, open views into the Plan
area are encouraged. Where privacy, security, and noise attenuation
are required, a combination of landscaping, berms and community
walls shall be used (refer to Chapter 3, General Regulations).
The design objective for the landscaping along the edge of the Plan is
to frame the property with a strong vertical landscape element such
as a single row of regularly spaced Washingtonia robusta palms or
similar plant material (spaced 20 - 30 feet apart). Where the edge
treatment interfaces with a roadway intersection, a subtle change in
landscaping is desirable to signify an entryway. This may be
achieved by doubling the row of palms and planting a specimen
accent tree directly at the intersection. The Coral tree (Erythrina sp.)
is used extensively in the local area and is an example of the type of
planting that would work well in an entry statement planting design.
An example edge treatment is shown in Figure 2-16, Portal
Intersection Detail.
City of Tustin
Page 2-116
MCAS Tustin Specific Plan/Reuse Plan