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Portal 2.0: Towards a Next-Generation Archived Data User
ServiceKristin Tufte, Robert L. Bertini, John Chee, Rafael J. Fernandez-
Moctezuma, Sathish Periasamy, Shreemoyee Sarkar, Poonam Singh, James Whiteneck, Spicer Matthews, Nevin Freeman, Soyoung Ahn
Jan 12, 2010
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A
B
C
Bottleneck
Estimated Propagation Speed
A – 25 mphB – 22 mphC – 21 mph
Activation
Deactivation
90% percentile of historicalbottlenecks
PORTAL established 2004 ◦ Simple web interface, single
data source Now - 2010
◦ 1 TB data; large web site◦ Data: freeway, transit, weather,
incident, freight, traffic counts Uses
◦ Local transportation professionals
◦ Regional Transportation Plan◦ Local news media◦ Research projects
Initial Goals Achieved
Introduction
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Wide variety of users; different needs and interests◦ Glance at current traffic conditions
◦ Analysis or understanding of a current event (traffic managers)
◦ Trending and forecast information (planners)
◦ In-depth analysis (researchers)
Design Principles◦ Intuitive, interactive, user-driven graphical interface
◦ Good set of defaults and intuitive interface
◦ User-driven selections and advanced options and customization
Web 2.0 Interface◦ Adobe Flash, Google Maps
◦ Effectively display results combining data from diverse sources
◦ Functionality grouped by freeway system subset (system, highway, station)
Portal 2.0 Interface
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Portal 2.0 Home Page
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Portal 2.0 Home Page
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Expanded Systems Map
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Expanded Street Cameras Map
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Highways Page
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Stations Page –Main Map
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Stations Page - Detail
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Home: User-customizable landing page Systems: Performance of they system as a whole Highways: Tools for analyzing entire highways; will
be updated to support user-selected corridors Stations: Tools for analysis of an individual station
(a particular freeway location) Data Quality: Detectors producing suspicious data. News & Info: News and information about the
Portal 2.0 project and team members Support: Documentation, publications,
feedback, problem reports.
Portal 2.0 Pages
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Easily integrate graphics from ITS Lab projects into Portal 2.0◦ Many projects use Portal data◦ R - primary graphics tool for ITS
Lab Portal-R Framework
◦ Researchers write graphical displays in R
◦ Simple specification; no need to know web development
◦ Displays semi-automatically integrated into Portal 2.0
◦ Capitalize on the great work done by ITS Lab researchers
Custom APIs - R
I-5 NB – Jul 09 – Jan 10
R program courtesy Alex Bigazzi
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Goal: Efficient use of maintenance resources◦ Prioritize detectors to be visited
Field Visits◦ Correlate anomalies observed in the data with
issues in the field Web site
◦ Detectors producing suspicious data Detectors not producing data Detectors with data failing pre-set criteria (i.e. 20-sec
vol > 17, speed > 100 mph, etc.) at a high rate◦ Offline detectors (construction, damage, etc.)
Data Quality
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Field Visits – Low Occupancy
Blurry - need to update images…
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Data Quality Web Site
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Next Steps◦ Expansion to Vancouver, WA◦ Increased use of Transit Data◦ Sustainability/Green Metrics
Funding: TransPort MTIP (OR), RTC (WA), OTREC, NSF, FHWA
Goals/Mission◦ Official Transportation Data Archive for the Portland
Metropolitan Region◦ Produce products that are useful to local transportation
professionals as well as researchers◦ Explore new, innovative uses of data
Thank you! http://portal2.its.pdx.edu
Going Forward…
Need Pictures...
Still thinking on this one…