Search Results

Investigating the effect of freeway congestion thresholds on decision-making inputs

Description: "This research investigated the differences inherent in the threshold choices using detailed freeway data from seven metropolitan areas. Congestion performance measures of delay per mile, Travel Time Index and Planning Time Index were evaluated. This research specifically examined: 1) the ranking values of congestion measure for different congestion thresholds under a variety of real-world travel time distributions, 2) the relationship between change of congestion threshold and change of performance measure, and 3) the appropriateness of using speed limit as a congestion threshold choice by evaluating the peak and off-peak average speed changes in relation to speed limit change in Houston, Texas."
Date: May 2010
Creator: Qu, Tongbin
Item Type: Report
Partner: UNT Libraries Government Documents Department

Texas Urban Triangle: creating a spatial decision support system for mobility policy and investments that shape the sustainable growth of Texas

Description: "This project came into being due to the dramatic transformation of the four core Texas metropolitan areas into an emergent megalopolis: Dallas-Fort Worth, Houston, San Antonio, and Austin. Its aims are two-fold: to provide a framework for decisions about future growth in the fastest growing region of Texas, and to spur further research into the complexities of this vast and rapidly emerging mega-region. The Texas Urban Triangle - 17 million persons spread over 58,000 square miles - is a new urban phenomenon, a triangular megalopolis whose development is not linear and contiguous. This report gives policy makers and investors from all sectors of society the critical knowledge they need to make decisions that will shape the future of Texas. The Texas Urban Triangle is one of the most dynamic urban regions in the nation, and to ensure it continues to flourish, we must build a future based on sustainable growth principles. Our preliminary findings suggest that this is not always the case. Further research needs to be conducted to obtain a complete, detailed, and comprehensive portrait. Nonetheless, even these preliminary findings are robust and point to more sustainable options for the future. Now that this preliminary analysis has been completed, readers are invited to consider the results. The ultimate goals of the project are three-fold: To plant the Texas Urban Triangle squarely and firmly into the public imagination of Texans far and wide - to put the Texas Urban Triangle "on the map." To provide a basis for current policy and planning decisions so that a more vibrant and attractive "Heart of Texas" - its metropolises, counties, and cities - provides a more sustainable environment for its residents, and their descendents [sic] and newcomers, well into the future. To determine what future research, particularly at the regional scale, is needed ...
Date: November 2010
Creator: Bright, Elise M.; Morgan, Curtis Alan & Neuman, Michael
Item Type: Report
Partner: UNT Libraries Government Documents Department

Valuing public sector risk exposure in transportation public-private partnerships

Description: "This report presents a methodological framework to evaluate public sector financial risk exposure when delivering transportation infrastructure through public-private partnership (PPP) agreements in the United States (U.S.)."
Date: October 2010
Creator: Bujanda, Arturo & Valdez-Ceniceros, Gabriel Alejandro
Item Type: Report
Partner: UNT Libraries Government Documents Department

Intercity passenger rail: implications for urban, regional, and national mobility

Description: Recent policy and regulatory actions by the U.S. government have revived interest in intercity passenger rail among transportation planners, policymakers, and the general public. As part of a fully integrated multimodal intercity corridor, passenger rail can provide a number of measurable impacts on urban, regional, and national mobility. This research examines these impacts using the Milwaukee-Chicago Hiawatha Service intercity passenger rail route as a case study. In addition to providing competitive travel times with automobile travel and frequent daily service, rail passengers can also seamlessly connect to airline service via a station at the Milwaukee airport. Two data sources--an on-board survey of Hiawatha Service passengers and a more detailed survey of air-rail transfer passengers at the Milwaukee airport--were used to identify the mobility impacts of rail service. If the rail service did not exist, most Hiawatha Service passengers would travel via personal vehicle, which indicates that the Hiawatha Service is providing congestion relief for the highways parallel to the route. The airport link allows for sustainable ground access to the Milwaukee airport and also extends the market area for the airport into the Chicago region, providing those residents with greater choices in air travel. The findings of this project provide unique insight into the mobility impacts of intercity passenger rail and can be used by state department of transportation rail planners and other public agency staff to develop rail service plans and administer state passenger rail programs throughout the U.S.
Date: December 2011
Creator: Sperry, Benjamin R. & Morgan, Curtis Alan
Item Type: Report
Partner: UNT Libraries Government Documents Department

Real-timing the 2010 Urban Mobility Report

Description: "The report measures system delay, wasted fuel, and the annual cost of congestion in all U.S. urban areas."
Date: February 2011
Creator: Lomax, Timothy J.; Schrank, David; Turner, Shawn; Geng, Lauren; Li, Yingfeng & Koncz, Nicholas
Item Type: Report
Partner: UNT Libraries Government Documents Department

Texas transit leadership initiative

Description: "The project goals was to establish a sustainable leadership development program that has value to the transit industry in Texas."
Date: August 2010
Creator: Cherrington, Linda Kay; Arndt, Jeffrey C.; Edrington, Suzie & Taylor, Ryan
Item Type: Report
Partner: UNT Libraries Government Documents Department

Comparing Perceptions and Measures of Congestion

Description: This report attempts to connect the relationship between perceived congestion as determined by IBM's Commuter Pain Survey results and measured congestion from the Urban Mobility Report (UMR) in 10 cities across the United States.
Date: October 2012
Creator: Le, Minh; Turner, Shawn; Wikander, John & Poe, Chris
Item Type: Report
Partner: UNT Libraries Government Documents Department

Creating the next generation of transportation professionals

Description: The transportation industry, like every other profession that relies heavily on the science, technology, engineering, and mathematics (STEM) fields, faces a growing shortage of professional engineers. The purpose of this project was to investigate new methods for conducting educational outreach activities for kindergarten through twelfth grade (K-12) students and compare the effectiveness of various implementation methods. During this project, Texas Transportation Institute (TTI) researchers developed two in-class educational outreach modules and several displays that they could easily transport and exhibit at various educational outreach activities. The first in-class module introduces intermediate school students to the world of transportation and transportation engineering and teaches students about the principle of retroreflectivity. The second in-class module teaches kindergarten students about sign shapes and colors. TTI researchers also participated in 12 educational outreach activities. These activities included: Four in-school events, four field trips to TTI facilities, three summer activities, and one engineering day event. The students participating in these activities ranged from kindergarten to twelfth grade. The educational outreach activities conducted introduced the fields of transportation and engineering to over 2000 students.
Date: November 2011
Creator: Finley, Melisa D. & Jasek, Debbie
Item Type: Report
Partner: UNT Libraries Government Documents Department

Multi-vehicle mobility allowance shuttle transit (MAST) system : an analytical model to select the fleet size and a scheduling heuristic

Description: "This report discusses the mobility allowance shuttle transit (MAST) system which is a hybrid transit system in which vehicles are allowed to deviate from a fixed rout to serve flexible demand. The mixed interfere programming (MIP) formulation analyzed the impacts of time headways between consecutive transit vehicles on the performance of a two-vehicle MAST system. An analytical framework is then developed to model the performance of both one-vehicle and two-vehicle MAST systems, which is used to identify the critical demand level at which an increase of the fleet size from one to two vehicles would be appropriate. From this research an insertion heuristic for a multi-vehicle MAST system was developed."
Date: June 2012
Creator: Quadrifoglio, Luca & Lu, Wei
Item Type: Report
Partner: UNT Libraries Government Documents Department

Refining the real-timed Urban Mobility Report

Description: This report describes a methodological improvement in the Urban Mobility Report (UMR) arterial street congestion calculations, including a change in the definition of "free-flow speed," which is used for delay calculations on arterial streets.
Date: March 2012
Creator: Lomax, Tim; Turner, Shawn; Eisele, Bill; Schrank, David; Geng, Lauren & Shollar, Brian
Item Type: Report
Partner: UNT Libraries Government Documents Department

Making mobility improvements a community asset: transportation improvements using context-sensitive solutions

Description: "This report was developed to disseminate knowledge, experiences, and reasons for use and benefits of Context-sensitive solutions (CSS) through university courses and technology transfer to facilitate its use by agencies and practitioners in gaining community acceptance of mobility improvement projects."
Date: September 2010
Creator: Bochner, Brian S.; Storey, Beverly & Lehnert, Angeline
Item Type: Report
Partner: UNT Libraries Government Documents Department

Assessing the value of delay to truckers and carriers

Description: This project evaluates the value of delay (VOD) to commercial vehicle operators due to highway congestion. The VOD for congestion is a fundamental parameter driving the private sectors' response to public freight projects and policies such as corridor construction and tolling.
Date: June 2011
Creator: Miao, Qing; Wang, Bruce X. & Adams, Teresa M.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Refining the real-timed Urban Mobility Report

Description: "This report describes a methodological improvement in the Urban Mobility Report (UMR) arterial street congestion calculations, including a change in the definition of "free-flow speed," which is used for delay calculations on arterial streets."
Date: March 2012
Creator: Lomax, Tim; Turner, Shawn; Eisele, Bill; Schrank, David L.; Geng, Lauren & Shollar, Brian
Item Type: Report
Partner: UNT Libraries Government Documents Department

Making mobility improvements a community asset : transportation improvements using context-sensitive solutions

Description: "This report was developed to disseminate knowledge, experiences, and reasons for use and benefits of Context-sensitive solutions (CSS) through university courses and technology transfer to facilitate its use by agencies and practitioners in gaining community acceptance of mobility improvement projects."
Date: September 2010
Creator: Bochner, Brian; Storey, Beverly J. & Lehnert, Angeline
Item Type: Report
Partner: UNT Libraries Government Documents Department

Transit management certificate program

Description: "In this report Texas Transportation Institute(TTI) worked closely with the Landscape Architecture and Urban Planning Department (LAUP) of Texas A&M University (TAMU) to develop a transit management certificate focus for the current Graduate Certificate in Transportation Planning (CTP) housed in the College of Architecture at TAMU.This program is the first step in the development of future educational opportunities in public transportation in Texas."
Date: July 2012
Creator: Cherrington, Linda K.; Sandidge, Matt & Joh, Ken
Item Type: Report
Partner: UNT Libraries Government Documents Department

Assessing the value of delay to truckers and carriers

Description: This project evaluates the value of delay (VOD) to commercial vehicle operators due to highway congestion. The VOD for congestion is a fundamental parameter driving the private sectors' response to public freight projects and policies such as corridor construction and tolling.
Date: June 2011
Creator: Miao, Qing.; Wang, Bruce Xiubin, 1966- & Adams, Teresa M.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Performance measures for sustainable freight movement

Description: This report addresses the issues of freight sustainability at the transportation corridor level.
Date: February 2012
Creator: Farzaneh, Reza.; Ramani, Tara; Krishnan, Anupama. & Zietsman, Josias.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Enhancement and Outreach for the Active Management Screening Tool

Description: This document reports on the enhancement of and outreach for an active management screening tool. The purpose of the Active Management Screening Tool (AMST) is to help agencies better assess the potential of active management strategies for their region within the congestion management process (CMP). It is structured to provide beneficial information and guidance related to active management strategies in all areas and levels of transportation planning." (Abstract).
Date: July 2012
Creator: Kuhn, Beverly T.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Understanding Traveler Behavior : The Psychology Behind Managed Lane Use

Description: This report investigated the role of psychological variables, such as risk aversion, that may explain why travelers choose to pay to use these lanes when the travel time is almost equal.
Date: July 2012
Creator: Burris, Mark; Arthur, Winfred; Devarasetty, Prem & Munoz, Gonzalo
Item Type: Report
Partner: UNT Libraries Government Documents Department