Traffic Operations and Safety Benefits of Active Traffic Strategies on TxDOT Freeways (open access)

Traffic Operations and Safety Benefits of Active Traffic Strategies on TxDOT Freeways

Report discussing a project, which developed a series of interdependent models and a simulation framework to evaluate the traffic operations and safety benefits of ATM strategies. Four ATM scenarios were evaluated in this study: variable speed limits (VSL), peak-period shoulder use, VSL and shoulder use, and ramp metering.
Date: October 2011
Creator: Nezamuddin, N.; Jiang, Nan (Writer on transportation); Zhang, Ti; Waller, S. Travis & Sun, Dazhi
Object Type: Report
System: The Portal to Texas History
Implementing a project and portfolio management system for TxDOT project development (open access)

Implementing a project and portfolio management system for TxDOT project development

"Beginning in the summer of 1999, Texas Department of Transportation (TxDOT) started developing the framework for implementing a sophisticated new system to manage its large and diverse portfolio of projects during their development phase. This was followed by the implementation itself for managing project schedules, project and portfolio resources and costs during their development cycle. This unique and challenging implementation across TxDOT encompassed all functional areas involved in the project development phase. It was successfully completed by overcoming technical, technological, and cultural challenges inherent with any implementation of this scale and magnitude."
Date: October 2011
Creator: Khwaja, Nabeel
Object Type: Report
System: The Portal to Texas History
Impacts of energy developments on the Texas Transportation System infrastructure (open access)

Impacts of energy developments on the Texas Transportation System infrastructure

"Texas energy sector has a critical impact-historically and currently-on both the state economy and the Texas transportation system. The stat's various transportation modes, including rail, highways, pipelines, and ports, form a system that supports the energy sector in a number of ways."
Date: October 2011
Creator: Prozzi, Jolanda; Grebenschikov, Sergey; Banerjee, Ambarish & Prozzi, Jorge Alberto
Object Type: Report
System: The Portal to Texas History
Equipment Replacement Optimization (open access)

Equipment Replacement Optimization

"The objective of the Texas Department of Transportation (TxDOT) Research Project 7-4941 is to; determine the best optimization methodology; evaluate commercial fleet management systems; develop the model if this cost-effective relative to purchasing a commercial model; and validate the new model as needed using data available on TxDOT's current fleet."
Date: October 2011
Creator: Fan, Wei; Brown, Leonard; Patterson, Casey; Winkler, Mike; Schminkey, Justin; Western, Kevin et al.
Object Type: Report
System: The Portal to Texas History
Texas Roundabout Guidelines: Final Report (open access)

Texas Roundabout Guidelines: Final Report

"This report contains best practices for choosing appropriate locations and design concepts for Texas roundabouts. This research effort is comprised of the following components: synthesis of available literature and analysis methods, development of capacity analysis methods, validation and enhancement of existing tools, and a spreadsheet tool to aid in roundabout planning and implementation."
Date: October 2011
Creator: Mills, Alison; Duthie, Jen; Machemehl, Randy B.; Ferguson, Erin; Waller, Travis; Sun, Dazhi et al.
Object Type: Book
System: The Portal to Texas History