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2001-01-05T09:20:14
2020-04-24T09:12:16-07:00
2020-04-24T09:12:16-07:00
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Several different trends in the 1990s have led to increased efforts to improve the alternatives to driving. In response, planning agencies have been taking a new look at both transportation and land use policies in an effort to enhance transportation choices. Their efforts have been hampered by a lack of practical planning tools. What's needed are practical measures of accessibility that can be used to evaluate the proximity to and adequacy of activities and the availability of alternative modes in neighborhoods throughout the city.
The goals of the project described in this report were to identify the factors that contribute to accessibility at the neighborhood level and to explore the variety of ways that planners can evaluate neighborhood accessibility using existing data sources and the capabilities of geographic information systems (GIS). Rather than developing a single measure of accessibility, we set out to design and build a neighborhood accessibility database that would allow planners to assess a wide range of accessibility factors and identify specific kinds of deficiencies in either land use or transportation systems.
Despite limitations in both data availability and GIS capabilities, several useful and insightful measures of neighborhood accessibility in terms of proximity to retail and services and the simple and practical database can be calculated. These measures, calculated for seven neighborhoods in Austin, TX enabled a comparison of accessibility between different kinds of neighborhoods that highlighted potential deficiencies and inequities. The development of a database to monitor and assess neighborhood accessibility is the first step towards developing policies that will enhance accessibility and guarantee an adequate range of choice.
application/pdf
Susan L. Handy and Kelly Clifton
2000 - Reports - EVALUATING NEIGHBORHOOD ACCESSIBILITY: ISSUES AND METHODS USING GEOGRAPHIC INFORMATION SYSTEMS
Several
different
trends
in
the
1990s have led to increased efforts to improve the alternatives to
driving.
In response
planning agencies have been taking a new look
at
both
transportation
and
land
use
policies in an effort to enhance transportation choices.
Their efforts have been hampered
by
a
lack
of
practical planning tools. What's needed are practical measures of accessibility that can be used to evaluate the
proximity to and adequacy of activities and the availability of alternative modes in neighborhoods throughout
the city.
The
goals
of
the
project
described in this report were to identify the factors that contribute to
accessibility at the neighborhood level and to explore the variety of ways
that
planners
can
evaluate
neighborhood accessibility using existing data sources and the capabilities of geographic information systems
(GIS).
Rather than developing a single measure of accessibility
we set out to design and build a
neighborhood accessibility database that would allow planners to assess a wide range of accessibility factors
and identify specific kinds of deficiencies in either land use or transportation systems.
Despite
limitations
in
both
data
availability
and
GIS
capabilities
several
useful
and
insightful
measures of neighborhood accessibility in terms of proximity to retail and
services
and
the
simple
and practical
database
can be calculated.
These measures
calculated for seven neighborhoods in Austin
TX enabled
a
comparison
of
accessibility between different kinds of neighborhoods that highlighted potential deficiencies and inequities. The development of a database to monitor and assess neighborhood accessibility is the first step towards developing policies that will enhance accessibility and guarantee an adequate range of
choice.
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