Oregon Freight Data Mart
Miguel Andres Figliozzi
Robert Bertini
Increasing freight volumes are adding pressure to the Oregon transportation system. Monitoring the performance of the transportation system and freight movements is essential to guarantee the economic development of the region, the efficient allocati ...
Read More
Freight Distribution Problems in Congested Urban Areas: Fast and effective solution procedures to time-dependent vehicle routing problems
Miguel Andres Figliozzi
Congestion is a common phenomenon in medium and large cities worldwide. Reliability of freight movement in urban areas is an important issue for manufacturing or service companies whose operation is based on just-in-time approaches. These companies t ...
Read More
Practical Approximations to Quantify the Impact of Time Windows and Delivery Sizes on Freight VMT in Urban Areas
Miguel Andres Figliozzi
This paper studies approximations to the average length of Vehicle Routing Problems (VRP). The approximations are valuable for strategic and planning analysis of transportation and logistics problems. The research focus is on VRP with varying number ...
Read More
Using Existing ITS Commercial Vehicle Operation (ITS/CVO) Data to Develop Statewide (and Bi-state) Truck Travel Time Estimates and Other Freight Measures
Christopher Monsere
Robert Bertini
The objectives of this research were to retrospectively study the feasibility for using truck transponder data to produce freight corridor performance measures (travel times) and real-time traveler information. To support this analysis, weighin-motio ...
Read More
Empirical Observation of the Impact of Traffic Oscillations on Freeway Safety
Christopher Monsere
Soyoung Ahn
Traffic oscillations are typical features of congested traffic flow that are characterized by recurring decelerations followed by accelerations (stop-and-go driving). The negative environmental impacts of these oscillations are widely accepted, but t ...
Read More
Active Recreation in Parks: Correlates of Park Design and Facilities for Use and Physical Activity
Lynn Weigand
Current research is examining the link between the built environment and regular physical activity to improve public health. As communities become denser and individual lots become smaller, locally accessible parks will assume more importance as plac ...
Read More
Distribution Logistics Course
Miguel Andres Figliozzi
Commercial vehicle movements associated with the delivery of goods and services are currently experiencing a number of challenging problems. Carriers and fleet operations face congestion, a growing number of tolls, increasing service level demands, a ...
Read More
Characteristics of Transitions in Freeway Traffic
Robert Bertini
Soyoung Ahn
This research seeks to understand the characteristics of transitions as freeway traffic changes from one state to another. This study addresses the features of two types of transitions; transitions near a merge and transitions along shock waves durin ...
Read More
Using Archived ITS Data to Measure the Operational Benefits of a System-wide Adaptive Ramp Metering System
Robert Bertini
Christopher Monsere
A System-Wide Adaptive Ramp Metering (SWARM) system has been implemented in the Portland, Oregon metropolitan area, replacing the previous pre-timed ramp-metering system that had been in operation since 1981. SWARM has been deployed on six major corr ...
Read More
Food Delivery Footprint: Addressing Transportation, Packaging, and Waste in the Food Supply Chain
Madeleine Pullman
Darrell Brown , Scott Marshall
Transportation of food accounts for a significant fraction of the carbon dioxide emissions believed to be adversely impacting climate and the environment. And this impact is increasing as food supply chains become longer and more complex, and food pa ...
Read More
Seismic Damage State Models for Oregon Bridges
Peter Dusicka
The U.S. highway transportation network relies on the health and integrity of major infrastructure elements such as bridges. Frequently traveled parts of Oregon are within the seismically active Pacific Northwest, and many of the bridges were designe ...
Read More
Exploratory Methods for Truck Re-identification in a Statewide Network Based on Axle Weight and Axle Spacing Data to Enhance Freight Metrics
Christopher Monsere
Mecit Cetin , Andrew Nichols
Most transportation agencies rely on point detectors (e.g., inductive loops, axle detectors) located at specific points on highways to collect data on traffic volumes, vehicle classes, and other relevant attributes of traffic. By utilizing the data c ...
Read More