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<br /> Chapter 3. Land-Use and Site Planning
<br /> Standards for Urban Corridors
<br /> Nearly all corridor plans and ordinances are charac- The number, size, and location of signs within corridor
<br /> terized by an overriding concern for visual quality and areas may also affect the functional operation of corridor
<br /> sensitive roadway area planning. This emphasis reflects roadways by contributing to the confusion of motorists
<br /> the fact that the roadway corridor, perhaps more than in an environment that is already difficult to negotiate.
<br /> any other feature of the urban environment, shapes our
<br /> perceptions of a community. There is, however, another LAND-USE REGULATIONS
<br /> problem associated with the typical urban corridor—the Most corridor zoning regulations function as overlay
<br /> functional operation of the roadway itself. districts that impose additional site development stan-
<br /> The functional problems posed by urban corridors dards on those projects located adjacent to major road-
<br /> relate primarily to traffic safety and congestion brought ways. In general, these standards do not modify the list
<br /> about by long stretches of intensive development, poorly of uses permitted in the underlying district, although some
<br /> marked and inadequately spaced driveways, inadequate ordinances do attempt to promote desired land-use pat-
<br /> turning lanes, and haphazard on-site circulation facilities. terns by restricting certain uses within the corridor. In the
<br /> Chesterfield County, Virginia, Corridor Overlay District,
<br /> for instance, drive-in windows, gas pumps, and other
<br /> Sound subdivision and site plan standards can help to ensure intensive retail and commercial uses are prohibited unless
<br /> that corridors are efficient and safe, as well as attractive This they are part of a unified development that is situated on
<br /> office park in Pleasanton, California, illustrates a number at least a 10 acre site.
<br /> important considerations. Notice the use of bus turn-out lanes The Fairfax County, Virginia, Highway Corridor Over-
<br /> • (lower right), perimeter walkways, landscaped median strips to
<br /> prevent left-hand turning movements, and the clustering of lay District imposes special development restrictions on
<br /> commercial uses at intersections(center). drive-in and "convenience-oriented" uses. According to the
<br /> ordinance provisions, the unregulated development of
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