If
They Come, Will You Build It? |
(Minnesota Department of Transportation Project, $84,546, 2 years, PI-David
Levinson) ( RAs Ramachandra Karamalaputi and Wei Chen). Completed 2003.
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Original Abstract:
This research will determine the decision rules used by agencies to choose
the size of the network relative to demand by examining the actual (revealed)
results of what projects are funded. It is hypothesized that simple factors
(such as traffic growth rates, volume to capacity ratios, and comparison
with adjacent upstream and downstream links) explain much of the resulting
decisions. This investigation will examine a time series of local highway
capital improvement projects and decisions for the Twin Cities metropolitan
region relating them to network structure characteristics. This research
will estimate a function that relates capacity to demand factors. Demand
will be measured directly using traffic. The term "capacity" is
used here broadly to mean a vector of multiple attributes that describe
the physical nature of the transportation network. These include the traditional
engineering capacity measure (maximum flow per unit time), as well as free-flow
speed or travel time, and other attributes.
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Final Report
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Presentations and Publications
- Levinson, D. and Karamalaputi,
Ramachandra (2003) Predicting
the Construction of New Highway Links. Journal of Transportation
and Statistics Vol. 6(2/3) 81–89
- Levinson, D and Karamalaputi,
R (2003), Induced Supply:
A Model of Highway Network Expansion at the Microscopic Level Journal
of Transport Economics and Policy, Volume 37, Part 3, September
2003, pp. 297–318
- Levinson, D, and Wei Chen
(2004) Area Based
Models of New Highway Route Growth presented at 2004 World Conference
on Transport Research, Istanbul
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Master's Theses
- Ramachandra Karamalaputi - June 2002. Predicting network growth
- Wei Chen - Spring 2004. Highway network evolution models
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