Studies to determine the effectiveness of longitudinal channelizing devices in work zones (open access)

Studies to determine the effectiveness of longitudinal channelizing devices in work zones

"This report describes the methodology and results of analyses performed to determine whether the following longitudinal channelizing device (LCD) applications improve the traffic safety and operations of work zones relative to the use of standard drums."
Date: October 2010
Creator: Finley, Melisa D.; Theiss, LuAnn; Trout, Nada D.; Miles, Jeffrey D. & Nelson, Alicia A.
Object Type: Report
System: The Portal to Texas History
Development of performance-based evaluation methods and specifications for roadside maintenance (open access)

Development of performance-based evaluation methods and specifications for roadside maintenance

" This report documents the work performed during Project 0-6387, "Performance Based Roadside Maintenance Specifications." "
Date: October 2010
Creator: Gharaibeh, Nasir G.; Shelton, Debora; Ahmed, Jubair; Chowdhury, Arif & Krugler, Paul E.
Object Type: Report
System: The Portal to Texas History
Export growth, energy costs, and sustainable supply chains (open access)

Export growth, energy costs, and sustainable supply chains

"The report examines sustainable supply chains in North America and the role played by rail inter-modal operations in lowering ten-mile fuel and emission costs. It examines whether current systems favor imports over exports - a current complaint from some shippers - and whether the development of inland inter-modal ports offers a solution to moving future freight into and out of large metropolitan areas."
Date: November 2010
Creator: Harrison, Rob & Seedah, Dan
Object Type: Report
System: The Portal to Texas History
The Freight Shuttle System : advancing commercial readiness (open access)

The Freight Shuttle System : advancing commercial readiness

This report summarizes the results of research aimed at advancing the commercial readiness of a new hybrid mode of inter-modal freight transportation called the Freight Shuttle System (FSS).
Date: November 2010
Creator: Roop, Stephen S.; Ragab, Ayman H.; Olson, Leslie E.; Protopapa, Annie A.; Yager, Michael A.; Morgan, Curtis Alan et al.
Object Type: Report
System: The Portal to Texas History
Biofuels energy policy and grain transportation flows: implications for inland waterways and short sea shipping (open access)

Biofuels energy policy and grain transportation flows: implications for inland waterways and short sea shipping

"This project develops a foundation for analysis of the effects of U.S. bio-fuel energy policy on domestic and international grain flows and patterns."
Date: September 2010
Creator: Vedenov, Dmitry V.; Fuller, Stephen W.; Power, Gabriel; Ahmedov, Zafarbek; Vadali, Sharada & Burris, Mark
Object Type: Report
System: The Portal to Texas History
Valuing public sector risk exposure in transportation public-private partnerships (open access)

Valuing public sector risk exposure in transportation public-private partnerships

"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
Object Type: Report
System: The Portal to Texas History
On jointly analyzing the physical activity participation levels of individuals in a family unit using a multivariate copula framework (open access)

On jointly analyzing the physical activity participation levels of individuals in a family unit using a multivariate copula framework

"The report focuses on analyzing and modeling the physical activity participation levels ( in terms of the number of daily "bouts" or "episodes" of physical activity during a weekend day) of all members of a family jointly."
Date: September 2010
Creator: Eluru, Naveen; Bhat, Chandra R. & Sener, Ipek N.
Object Type: Report
System: The Portal to Texas History
Characterizing information propagation through inter-vehicle communication on a simple network of two parallel roads (open access)

Characterizing information propagation through inter-vehicle communication on a simple network of two parallel roads

"In this report, we study information propagation via inter-vehicle communication along two parallel roads. By identifying an inherent Bernoulli process, we are able to derive the mean and variance of propagation distance."
Date: October 2010
Creator: Yin, Kai & Wang, Bruce X.
Object Type: Report
System: The Portal to Texas History
Robust pricing of transportation networks under uncertainty (open access)

Robust pricing of transportation networks under uncertainty

"This project will develop these models, which will be suitable either to determine the best pricing policies to maximize revenue or minimize congestion, or to evaluate alternative toll policies according to these metrics."
Date: September 2010
Creator: Gardner, Lauren Marie; Waller, S. Travis & Boyles, Stephen D.
Object Type: Report
System: The Portal to Texas History
Examining the influence of tolls on commute departure and route choice behavior in the Chicago region (open access)

Examining the influence of tolls on commute departure and route choice behavior in the Chicago region

"The current study contributes toward understanding the influence of congestion pricing on commuter behavior by specifically examining what dimensions of commute travel behavior are affected as a response to congestion pricing."
Date: August 2010
Creator: Paleti, Rajesh; Bhat, Chandra R. & Eluru, Naveen
Object Type: Report
System: The Portal to Texas History
Partnering with AVID to create transportation scholars (open access)

Partnering with AVID to create transportation scholars

"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."
Date: October 2010
Creator: Jasek, Debbie & Finley, Melisa D.
Object Type: Report
System: The Portal to Texas History
Performance analysis of the "zoning" strategies for Americans with Disabilities Act paratransit services (open access)

Performance analysis of the "zoning" strategies for Americans with Disabilities Act paratransit services

"The objective of this research is to provide a more in-depth evaluation and comparison between centralized and decentralized zoning strategies for the city of Houston, Texas, by developing a simulation model to evaluate the effect of zoning strategies on the productivity and service quality for the ADA paratransit service."
Date: August 2010
Creator: Shen, Chung-Wei & Quadrifoglio, Luca
Object Type: Report
System: The Portal to Texas History
Towards an Integrated Pavement Design Approach: Using Hamburg Wheel Tracking Device to Support the Mechanistic-Empirical Pavement Design Guide (open access)

Towards an Integrated Pavement Design Approach: Using Hamburg Wheel Tracking Device to Support the Mechanistic-Empirical Pavement Design Guide

"This research study focuses on analyzing two techniques for observing the variability of mix production and its effects on pavement performance."
Date: November 2010
Creator: Prozzi, Jorge Alberto & Grebenschikov, Sergey
Object Type: Report
System: The Portal to Texas History
Transportation for humanity: meeting the needs in the colonias (open access)

Transportation for humanity: meeting the needs in the colonias

"The goal of the research was to access the current transportation challenges facing residents of the colonias and determine the feasibility of vehicle procurement through donations or at-cost purchases from a variety of entities and/or individuals to support the program, and recommendations for alternative funding mechanisms to support the local community centers in their efforts to provide transportation to the colonias population."
Date: September 2010
Creator: Storey, Beverly B. & Jasek, Debbie
Object Type: Report
System: The Portal to Texas History
Network methods for project selection based on optimizing environmental impact (open access)

Network methods for project selection based on optimizing environmental impact

"Traditionally, transportation road networks have been designed for minimal congestion. Unfortunately, such approaches do not guarantee minimal vehicle emissions. Given the negative impacts of vehicle pollutants as well as tighter national air quality standards, it is critical for regions to be able to identify capacity modifications to road networks such that vehicle emission are minimal. This ability combined with land use changes and opportunities for non-auto travel are paramount in helping regions improve air quality."
Date: August 2010
Creator: Duthie, Jennifer Clare; Waller, S. Travis & Ferguson, Erin M.
Object Type: Report
System: The Portal to Texas History
Impacts of pending federal greenhouse gas legislation on the Texas transportation sector (open access)

Impacts of pending federal greenhouse gas legislation on the Texas transportation sector

Report on a study to assess current regulatory attempts to mitigate climate change and how such proposed action would impact the Texas transportation sector economically and provides recommendations for how policymakers can build consensus in Texas to address carbon emissions.
Date: May 2010
Creator: Woodward, James T. & Boske, Leigh B.
Object Type: Report
System: The Portal to Texas History
Portable Emission Measurement System-Based Approach to Developing and Evaluating Driving Cycles for Air Quality Assessment (open access)

Portable Emission Measurement System-Based Approach to Developing and Evaluating Driving Cycles for Air Quality Assessment

"The first objective is to develop driving cycles for classified roads incorporating both a vehicle's driving activities and its emission characteristics, using the data collected by Portable Emission Measurement System (PEMS), which was neither available nor has ever been used in developing driving cycles. A comprehensive database is established for the collected data and a sophisticated computer program is developed to generate the specific driving cycles. The second objective is to develop an evaluation approach of driving cycles in which Vehicle Specific Power (VSP), a parameter that can readily connect the driving modes with emissions, is used to evaluate how well the driving cycles can represent the driving and emission characteristics on real roads."
Date: April 2010
Creator: Wang, Ziqianli; Shi, Qinyi & Yu, Lei
Object Type: Report
System: The Portal to Texas History
Physically based model for predicting the susceptibility of asphalt pavements to moisture-induced damage (open access)

Physically based model for predicting the susceptibility of asphalt pavements to moisture-induced damage

"This study presents a novel moisture-induced continuum damage model for asphalt concrete."
Date: September 2010
Creator: Masad, Eyad; Graham, Michael A. & Abu Al-Rub, Rashid K.
Object Type: Report
System: The Portal to Texas History
Idle reduction programs and potential benefits to schools (open access)

Idle reduction programs and potential benefits to schools

Report on a project examining the costs and benefits of implementing an idle reduction program to offset the costs of increasing bus service in order to decrease the congestion in school zones.
Date: November 2010
Creator: Hoelscher, Michelle
Object Type: Report
System: The Portal to Texas History
A comprehensive examination of heavy vehicle emissions factors (open access)

A comprehensive examination of heavy vehicle emissions factors

"This report summarized the findings from reviewing the literature on several topics that are related to heavy vehicle emissions including engine and fuel types, vehicle technologies that can be used to reduce or mitigate vehicle emission, the factors that affect vehicle emission, vehicle emissions modeling, and current and future policy requiring accurate accounting of heavy vehicle emission."
Date: August 2010
Creator: Thompson, Melissa Renee; Unnikrishnan, Avinash; Conway, Alison J. & Walton, C. Michael
Object Type: Report
System: The Portal to Texas History
Responses of trucking operations to road pricing in central Texas (open access)

Responses of trucking operations to road pricing in central Texas

"The purpose of this study is to identify and quantify how the different segments of the trucking industry would respond to road pricing applications, including traditional toll rads, variably priced toll roads, mixed-use express lane facilities, and truck-only tolled facilities."
Date: October 2010
Creator: Prozzi, Jolanda; Walton, C. Michael & Rutzen, Beatriz
Object Type: Report
System: The Portal to Texas History
A Road Pricing Methodology for Infrastructure Cost Recovery (open access)

A Road Pricing Methodology for Infrastructure Cost Recovery

"The purpose of this research is to provide a theoretical framework for future commercial vehicle user-charging using real-time vehicle weight and configuration information collected using weigh-in-motion systems" (p. i).
Date: August 2010
Creator: Walton, C. Michael & Conway, Alison J.
Object Type: Report
System: The Portal to Texas History
An evaluation of the effects of transit oriented development in a suburban environment (open access)

An evaluation of the effects of transit oriented development in a suburban environment

"Transit-Oriented Development (TOD) refers to dense, pedestrian-friendly, livable communities that have good transit as a nucleus. While transit facilities are missing in most suburban towns and the residents are heavily dependent on their vehicles, it is wondered whether residents would take advantage if public facilities were available. This paper presents information about some vital aspects of TOD when viewed in suburban communities."
Date: October 2010
Creator: Lewis, Carol Abel & Lastrape, Krystal M.
Object Type: Report
System: The Portal to Texas History
Thinking critically about models used to predict emergency evacuation in Gulf Coast states (open access)

Thinking critically about models used to predict emergency evacuation in Gulf Coast states

Report examining evacuation procedures using existing forecasting models in the gulf coast states and discusses ways to improve the use of forecasting models by government officials.
Date: July 2010
Creator: Moseley, Brandon; Wynn, Garlin & Lewis, Carol Abel
Object Type: Report
System: The Portal to Texas History