Analysis of Travel Time Reliability for Freight Corridors Connecting the Pacific Northwest

Miguel Figliozzi
A new methodology and algorithms were developed to combine diverse data sources and to estimate the impacts of recurrent and non-recurrent congestion on freight movements’ reliability and delays, costs, and emissions. The results suggest that tradi ... 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

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

Assessment and Refinement of Real-Time Travel Time Algorithms for Use in Practice, Phase 2

Kristin Tufte
Soyoung Ahn
The Federal Highway Administration (FHWA) has put a high priority on the use of existing dynamic message signs (DMS) to provide travel time estimates to the public. The Oregon Department of Transportation (ODOT) has three DMS in the Portland metropol ... Read More

Implementing Oregon’s Energy Plan: Opportunities for Operations and ITS

Jon Makler
Oregon’s 10-Year Energy Plan identifies intelligent transportation systems (ITS) as a key strategy for reducing energy consumption in the transportation sector. Other strategies, including fleet turnover, will take a look time to realize benefits f ... Read More
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