Exploiting a Next Generation ITS Data Warehouse for Improved System Performance and Congestion Monitoring
Kristin Tufte
David Maier
The objective of this project is to build on an existing data archive platform, known as the Portland Oregon Regional Transportation Archive Listing (PORTAL) toward development of next generation performance measurement and congestion reduction tools ...
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Fusion and Integration of Arterial Performance Data
Kristin Tufte
Real-time knowledge of system performance enables transportation agencies to manage traffic conditions and keep the public informed of periods of congestion. The ability to accurately measure arterial performance has been limited primarily by the ava ...
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Analysis of Travel Time Reliability for Freight Corridors Connecting the Pacific Northwest
Miguel Andres 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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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