Title: Impact of Rapid Transit on Property Value in Chicago: A GIS Analysis
1 Impact of Rapid Transit on Property Value in
Chicago A GIS Analysis
http//faculty.roosevelt.edu/achet/GIS_OCT_AUT.doc
2Objectives
- To outline a method of accessing the impact of
rapid transit on property value particularly to
conceptualize how GIS can be used as an
integrative tool in order to gain insights to
improve communication as well as enhance the
credibility of the impact valuation process. -
-
3Presentation I Outline
I. Background and Context II. Review of Past
studies III. Methodology IV. Analysis, results
and discussion V. Conclusions
4I Background and Context
- 1. Introduction
- 2. Approaches to property valuation
- 3. GIS as an analytical tool
51. Introduction
- Rapid transit benefits are
- Improved accessibility,
- lessening congestion
- reducing transportation costs
- Commercial and residential locations with and
without transit have value difference - Other important factors are population, income
level, proximity and environmental factors.
62. Approaches to property valuation
- Traditional Property valuation techniques are
- Comparable sales,
- Income base,
- Replacement cost and
- Statistical extrapolation.
73. GIS as an analytical tool
- GIS application Context
- GIS used as a tool in impact assessment of
complex environmental impact assessment - Geographic Information Systems (GIS) can be used
to efficiently organize and analyze market data
for inclusion in standard valuation models - GIS help building on existing knowledge and
databases over a period of time. - We can link spatial and non-spatial information
together. Can be a platform for better
connectivity and ownership among stakeholders and
a group planning also. - We can bring several perspectives together. Thus,
we can Initiate long-term perspective on managing
environmental change or with a new project.
8II. Review of Past studies
- 4. Prior to 1933 in Chicago
- 5. Recent studies in other Metropolitan areas
94. Prior to 1933
- 100 Years of analysis showed that there is a
cyclic process - A land boom of the rail road era (1843-1862). The
land boom followed a great panic, civil war and a
great fire(1863-1877) - The land boom of skycrapers and the first worlds
fair (1978-1898) - Land boom after world war 1898-1933
105. Recent studies
- In Washington DC (Larmen et al, 1977).
- the changes in real estate values may occur both
prior to and after a transit systems
construction Also, access to the transit system
and the implementation schedule of Metra were
both found to be significant determinants of
parcel transaction prices - Study of the expressway impacts in Chicago,
Golden (1968) found significant impact except for
Stevenson Expressway. A recent study by Chicago
Transit Authority (CTA, 1997) concluded Metra
stations positively effects the property value.
115. Recent studies (contd)
- Elsewhere, previous studies in Boston by
(Amstrong (1994), in Washington DC and Atlanta by
Cervero (1994), in San Francisco by Diaz (1999),
in California by Cervero and Duncan (2000 2001),
in Dallas by Weinstein and Clower (2002), in San
Diego by Cervero and Duncan (2002) concluded that
urban infrastructure and public mass
transportation systems can alter the spatial
distribution of urban property values. Some of
these studies reported increases up to 32.1
(Weinstein and Clower, 2002).
12III Methodology
- 1. Principles
- 2. Available Methods
- 3. Study Area
- 4. Methods Used
136. Principles
- 1. Readily available data
- 2. Interactive to suit the context and
credibility - 3. Spatial insights for communication
147. Available Methods
- Two methods are widely used
- Hedonic model
- Apportioning of factors that influence
property value transportation infrastructure,
structure, size, and age, land use and socio
demographics - 2.Multiple regression model
- based on proximity, income level, environmental
conditions, land use (residential or commercial),
population density.
157. Study Site
- Northwest-O'Hare to Schaumburg
- Length 9.5 mile (15 KM), connecting Schaumburg
and Woodfield with O'Hare and existing "L"TM
service. - River Road station
- A moderate level of service for work travel
16Assessing Impact of Rapid Transit System on
Property Value A GIS Analysis
Metra Map
Buffers
Proximity map
Proximity Scenario
Geo-coding
RR Stations
Union
Proximity/ Population Scenario
Population Class
Census 2000
Union
Income Class
Proximity Population Income Scenario
Proxy Indicator-based Hypothesis testing
Initial Inferences w/wo
Land Value Blue Book-based Inferences
Multi-parameter Model Testing
Interactive Impact Scenarios
17Analysis, Results and Discussion
18Map of Subway Proposed System 1943
19Map of Subway Proposed System 2000
20Analysis, Results and Discussion
- Population and Income level 2000
21Schaumburg
O'Hare
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23Analysis, Results and Discussion
24- Three Alternative Became
- Evident
- OHare Schaumburg
- OHare-Enesco Plaza Schaumburg
- Link to Existing link
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31Analysis, Results and Discussion
The Northwest-O'Hare to Schaumburg project never
picked up a great momentum after it was
proposed. It is included in Destination 2020, It
has political support of the northwest suburban
mayors and senators With proposed O'Hare Airport
expansion plan it is One of the CTA's favored
extension projects.
32Initial Inferences
33What percentage of increase in income level after
the transit system development is needed in order
to make it significantly different from the
increase in property value or income before the
transit system development.
34n41
Preliminary resultsIn order to conclude that the
impact of transit system is significantly
different, there must be a 20 to 25 increase in
income
35Future Directions
Land Value Blue Book-based Model Calibration and
Validation Multi-parameter Model
Development Interactive Integrated Scenarios
Generation Property values with and without
greenways
36Open for Comments, Suggestions, clarifications