Now showing items 1-10 of 21
Developing a Performance Measurement Approach to Benefit/Cost Freight Project Prioritization
Future reauthorizations of the federal transportation bill will require a comprehensive and quantitative analysis of the freight benefits of proposed freight system projects. To prioritize public investments in freight systems and to insure consideration of the contribution of freight to the overall system performance, states ...
A Platform for Proactive Risk-Based Slope Asset Management - Phase I
Unstable slopes, including landslides, rock falls, and debris flows, present significant risk to safety and regional commerce, and present a chronic concern for highway managers. Due to the widespread spatial and temporal distribution of these hazards, most states, have, or are taking, measures to manage slopes along their ...
Performance Monitoring for Safe and Livable Communities: Fusing Data, to Improve Arterial Operations for All Users
Measuring or analyzing transportation system performance occupies a large transportation professional’s time. So, improving performance measurement methods in terms of accuracy and cost are important contributions. This research documents development on five fronts for multi-modal transportation system performance measurement. ...
Characterization of Frictional Interference in Closely-Spaced Reinforcement in MSE Walls
This research addresses one of several knowledge gaps in the understanding of tall MSE wall behavior: prediction of reinforcement loads impacted by frictional interference of closely-spaced reinforcements associated with tall walls.
New Strategies for Maintaining Post-Seismic Operations of Lifeline Corridors
This project furthered the development of three strategies that could positively impact maintaining post-seismic operations of lifeline corridors. In Year 1, most of the focus was on the development of the three individual strategies. In Year 2, a follow-up project will include more formal assessments of the situation in which ...
An Innovative Survey Design to Understand Sustainable Travel Behaviors: Potential of a Rolling Sample Survey to Replace Traditional Household Travel Surveys
We propose an innovative survey with rolling samples to address a major fiscal challenge faced by many MPOs. Faced with a small, but continuous budget, MPOs are increasingly unable to continue the current survey practice: conducting a large survey every 10 years. A rolling sample design also has other benefits over the current ...
SSI-Bridge: Soil-Bridge Interaction During Long-Duration Earthquake Motions
The seismic response of a complete soil-bridge system during shallow, crustal and subduction zone earthquakes is the topic of this report. Specifically, the effects of earthquake duration on the seismic performance of soil-bridge systems are examined. This topic is important, because many bridges worldwide are located in ...
The Use of Synthetic Blended Fibers to Reduce Cracking Risk in High Performance Concrete
Transportation departments have observed varying degrees of cracking in their concrete structures. Cracking of high performance reinforced concrete structures, in particular bridge decks, is of paramount concern to Pacific Northwest Departments of Transportation. Cracking at early ages (especially within the first year after ...
Digital Dissemination Platform of Transportation Engineering Educational Materials
National agencies have called for more widespread adoption of best practices in engineering education. To facilitate this sharing of practices we will develop a web-based system that will be used by transportation engineering educators to share curricular materials and methods. A research-based action oriented approach will ...
Rendering of Dense, Point Cloud Data in a High Fidelity Driving Simulator
Driving Simulators are advanced tools that can address many research questions in transportation. Recently they have been used to advance the practice of transportation engineering, specifically signs, signals, pavement markings, and most powerfully to examine the safety and efficiency of alternative transportation solutions. ...