Predicting the incremental effects on transit ridership due to Bus-On-Shoulder operations

Predicting the incremental effects on transit ridership due to Bus-On-Shoulder operations

Date: August 2010
Creator: Machemehl, Randy B. & Pappas, Elani
Description: "Bus-On-Shoulder (BOS) operations are an extremely effective method for increasing the quality of a bus service; allowing for a bus to use a freeway shoulder as a bypass lane not only decreases bus travel time but also increases the bus service's overall performance. BOS has also been found to increase bus ridership. The modern BOS system began in the Minneapolis-Saint Paul area almost 20 years ago. Using the extensive data available from Minneapolis-Saint Paul, ridership changes due to BOS operations were explored. The data showed that with 90% confidence, ridership will increase by at least 4.5% and as much as 14.3%. This paper also explores how the citizens of Austin, Texas would respond to a BOS operation on local freeways. A stated preference survey was administered to a sample of Austin commuters. It was determined that potential riders would desire a time savings of 7 or more minutes. Typically it is challenging for persons to accurately predict time savings, therefore it was concluded that for a BOS operation to be successful it was necessary for a there to be a perceived time savings."
Contributing Partner: UNT Libraries Government Documents Department
Use of Micro Unmanned Aerial Vehicles for roadside condition assessment

Use of Micro Unmanned Aerial Vehicles for roadside condition assessment

Date: December 2010
Creator: Gharaibeh, Nasir G. & Hart, William Scott
Description: "Micro Unmanned Aerial Vehicles (MUAVs) that are equipped with digital imaging systems and global positioning systems provide a potential opportunity for improving the effectiveness and safety of roadside condition and inventory surveys. This study provides an assessment of the effectiveness of MUAVs as a tool for collecting condition data for roadside infrastructure assets using three field experiments."
Contributing Partner: UNT Libraries Government Documents Department
Optimized deployment of emission reduction technologies for large fleets

Optimized deployment of emission reduction technologies for large fleets

Date: June 2011
Creator: Kianfar, Kiavash; Memisoglu, Gokhan & Farzaneh, Mohamadreza
Description: "This research study produced an optimization framework for determining the most efficient emission reduction strategies among vehicles and equipment in a large fleet."
Contributing Partner: UNT Libraries Government Documents Department
How fast is a fast train? : comparing attitudes and preferences for improved passenger rail service among urban areas in the South Central high-speed rail corridor

How fast is a fast train? : comparing attitudes and preferences for improved passenger rail service among urban areas in the South Central high-speed rail corridor

Date: December 2011
Creator: Morgan, Curtis Alan & Sperry, Benjamin R.
Description: "Using data from an Internet-based survey of residents in three communities in Central Texas-Waco, Temple, and Hillsboro-this research project examined the potential impacts of new intercity passenger rail service on small-or medium-sized communities located in the intermediate area between two larger urban areas that form the endpoints of a federally designated intercity high-speed rail corridor."
Contributing Partner: UNT Libraries Government Documents Department
Developing infrastructure for interconnecting transportation network and electric grid

Developing infrastructure for interconnecting transportation network and electric grid

Date: September 2011
Creator: Damnjanovic, Ivan & Kim, Seok
Description: "This report is primarily focused on the development of mathematical models that can be used to support decisions regarding a charging station location and installation problem. The major parts of developing the models included identification of the problem, development of mathematical models in the form of bi-level and stochastic programming problems, and development of a solution approach using a meta-heuristic method."
Contributing Partner: UNT Libraries Government Documents Department
Managing commodity risks in highway contracts: quantifying premiums, accounting for correlations among risk factors, and designing optimal price-adjustment contracts

Managing commodity risks in highway contracts: quantifying premiums, accounting for correlations among risk factors, and designing optimal price-adjustment contracts

Date: September 2011
Creator: Damnjanovic, Ivan & Zhou, Xue
Description: "The main goal of this report is to investigate the impact of commodity price risk on construction cost and the optimal risk hedging of such risks using price adjustment clauses. More specifically, the objective of the report is to develop models that can help highway agencies manage commodity price risks. In this report, weighted least square regression model is used to estimate the risk premium; both univariate and vector time series models are estimated and applied to simulate changes in commodity prices over time, including the effect of correlation; while genetic algorithm is used as a solution approach to a multi-objective optimization formulation. The data set used in this report consists of TxDot bidding data, market-based data including New York Mercantile Exchange (NYMEX) future options data, and Engineering New-Record (ENR) material cost index data. The results of this report suggest that the optimal risk mitigation actions are conditional on owners' risk preferences, correlation among the prices of commodities, and volatility of the market."
Contributing Partner: UNT Libraries Government Documents Department
Automated generation of virtual scenarios in driving simulator from highway design data

Automated generation of virtual scenarios in driving simulator from highway design data

Date: September 2010
Creator: Zhao, Xi; Nelson, Alicia A.; Chrysler, Susan & Zhang, Yunlong
Description: "The current project explored ways to create custom roadway segments for use in the TTI driving simulator. The project initially attempted to use AutoCAD Civil 3D roadway drawings and export them for use in the simulator."
Contributing Partner: UNT Libraries Government Documents Department
Partnering with AVID to create transportation scholars

Partnering with AVID to create transportation scholars

Date: October 2010
Creator: Jasek, Debbie & Finley, Melisa D.
Description: "The goal of this project was to team with the Advancement Via Individual Determination (AVID) program in local schools to stimulate student awareness of transportation and engineering careers and to encourage interest in the science, technology, engineering, and mathematics (STEM) fields."
Contributing Partner: UNT Libraries Government Documents Department
Equity evaluation of vehicle miles traveled fees in Texas

Equity evaluation of vehicle miles traveled fees in Texas

Date: March 2012
Creator: Burris, Mark; Larsen, Lisa. & Whitty, James M.
Description: "This report used 2009 National Household Travel Survey (NHTS) Texas data to consider the equity impacts surrounding four vehicle miles traveled (VMT) scenarios. Results indicate that all of the VMT fee scenarios are essentially as equally vertically equitable as the current state gas tax system."
Contributing Partner: UNT Libraries Government Documents Department
Idle reduction programs and potential benefits to schools

Idle reduction programs and potential benefits to schools

Date: November 2010
Creator: Hoelscher, Michelle
Description: "This project will measure the cost benefits of implementing a school bus idle reduction program as means to offset the cost of increased bus service."
Contributing Partner: UNT Libraries Government Documents Department
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