Research Materials (Civil & Environmental Engineering)
Items in this Collection
- 3Northern Canada
- 2Climate change
- 2Real options model
- 2Transportation investment decision analysis
- 1Air analysis
- 1Air travel
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2021-04-01
We present a scheduling model for an urban mobile photo radar speed enforcement (MPE) program. An MPE program utilizes automated photo radar technology to capture speed limit violators, towards an aim to reduce speeding and thus, improve traffic safety. We propose a binary quadratic program that...
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2020-07-01
The Four Types of Cyclists is a widely adopted typology developed by Portland’s Bicycle Coordinator, Roger Geller. No Way No How, Interested but Concerned, Enthused and Confident, and Strong and Fearless have become ubiquitous in academic literature and practice. However, the classification was...
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2022-01-26
The Level of Traffic Stress (LTS) framework is widely used to assess the suitability of roadway environments for cycling. Its main strength is the identification of infrastructure characteristics that meet the needs of different cyclist groups. The four levels of infrastructure ratings, LTS 1 to...
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2021-12-01
Woldeyohannes Yirgo, Kaleab, Kim, Amy M.
Consolidated air services at hub airports in the U.S. encourage passenger leakage. Compared to smaller airports, trips from large hub airports consume less fuel per passenger-kilometer. Trips from large hubs also result in less pollutants per passenger-kilometer. Attractive air services at large...
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2020-05-17
Ohi, Sabrena Jahan, Kim, Amy M.
This paper explores the application of count models to represent the relationship between flight disruptions and weather. Throughout the world, flights are regularly disrupted by delays at airports and in the terminal airspace, and less frequently by diversions and cancelations. Many delay...
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Identifying Critical Corridors During an Area-Wide Disruption by Evaluating Network Bottleneck Capacity
Download2021-07-24
Ohi, Sabrena Jahan, Kim, Amy M.
This paper applies the min-cut max-flow theorem combined with a grid cell disruption method over a large transportation network, to identify the importance of network locations in providing travel capacity when a community is evacuating (say, from wildfire). We develop metrices that look at the...
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Incorporating the impacts of climate change in transportation infrastructure decision models.
Download2020-04-01
Historically an important transportation corridor in the Northwest Territories, climate change has shortened the duration of the Mackenzie River’s navigational season. Communities rely increasingly on airlift as the growing volatility affects barging operations, leading to higher overall freight...
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Long-Distance Airport Substitution and Air Market Leakage: Empirical Investigations in the U.S. Midwest.
Download2021-05-08
Yirgu, Kaleab Woldeyohannes, Kim, Amy M., Ryerson, M.S.
Following airline mergers and network reorganizations aimed at reducing operational costs, consolidated air services at large hub airports have encouraged air travelers to forego use of their smaller local airports to access large hub airports offering superior air services farther away. This...
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Transportation Infrastructure Decision Flexibility in Response to Climate Change and Demand Uncertainties: The Mackenzie Valley Highway in Canada’s Northwest Territories.
Download2022-03-01
Li, Huanan, Kim, Amy M., Jin, Jianjing
Barge transport operations on the Mackenzie River, a major transportation corridor in the Northwest Territories, are impacted by multiple sources of uncertainties. In particular, the impacts of climate change on this important corridor have led to summer shipping seasons that are growing more...
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2020-07-28
Within their emergency planning and management roles, it is critical for transportation authorities to understand the characteristics of the transportation network and the communities it serves. The northeastern section of the province of Alberta, Canada has a very limited roadway network and is...