PORTAL: An On-Line Regional Transportation Data Archive with Transportation Systems Management Applications Casey Nolan Portland State University CUPUM Conference London, England June 30, 2005

2 Outline  What is PORTAL?  National ITS Architecture and Archived Data User Service (ADUS)  Describe Architecture  Describe Database Processing and Storage  Performance Measurement  Mapping and Spatial Analysis  Next Steps

3 Introduction Guiding Principles “Data are too valuable to only use once.” “ Management of the transportation system cannot be done without knowledge of its performance.”

4 Archived Data User Service (ADUS) ITS Architecture 1999  USDOT Vision for ADUS: “Improve transportation decisions through the archiving and sharing of ITS generated data.”  Principles of ADUS to Achieve Vision  All ITS deployments should consider data archiving  Archive data to maximize integration with other data sources and systems  Archive data in a way that eases retrieval for those with access  Provide information that is integral to transportation practice

5 Portland Transportation Archive Listing (PORTAL) PSU Designated as Regional Archive Center  Portland State University (PSU) participates in regional ITS committee—TransPort  PSU designated as regional center for collecting, coordinating and disseminating variable sources of transportation data and derived performance measures.  Bi-state: Oregon and Washington  May expand statewide.

6 PORTAL Architecture Regional ITS Data Sources  98 CCTV Cameras  19 Variable Message Signs (VMS)  485 Inductive Loop Detectors  135 Ramp Meters  Weather data stations  TriMet Automatic Vehicle Location (AVL) System and Bus Dispatch System (BDS)  Extensive Fiber Optics Network

7 PORTAL Architecture Regional ITS Data Sources  98 CCTV Cameras  19 Variable Message Signs (VMS)  485 Inductive Loop Detectors  135 Ramp Meters  Weather data stations  TriMet Automatic Vehicle Location (AVL) System and Bus Dispatch System (BDS)  Extensive Fiber Optics Network

8 PORTAL Architecture Data Flows

9 Data Storage (OIT) Storage Area Networks (SANs) 1+ Terabyte of storage space Web Server (OIT): Dual Sparc Processor Sun OS Your Web Browser Disk Access via Network File System (NFS) Via NFS Send Query Get Results Database Server: Dual Sparc Processor Sun OS PORTAL Architecture Database and Web Servers  New hardware purchased with a grant from ODOT  Partnering with the PSU Office of Information Technologies

10 PORTAL Architecture Database and Web Servers  Database Back End  SQL relational database  200 MB per day of raw data  75 GB per year  1.2 TB high capacity disk array  5 MB compressed for download  Off-site backup server  Daily backups  Uninterruptible power  Web-based interface  Easily accessible  User-friendly  PHP language

11 Data Analysis and Visualization Homepage

12 Data Analysis and Visualization Contour Plots: Speed

13 Weather Popup

14 Data Fidelity Popup

15 Data Analysis and Visualization Time Series Plots: Volume

16 Data Analysis and Visualization Grouped Data Plots: Speed

17 Monthly Reports

18 Monthly Reports

19 Monthly Reports

20 Determining Influence Areas for Travel Time Calculations

21 Monthly Reports

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Peak and Off-Peak Travel Time Reliability on a Freight Corridor

30 Next Steps & Concluding Remarks  Data from:  TriMet - Public Transit Agency  Washington State DOT  City of Portland  ODOT WIM Data  Additional processing tools and performance measures  Web interface is expanding use of archived data  Increasing awareness of the value of these systems  Provides decision support for transportation officials in the region

Acknowledgments  National Science Foundation  Oregon Department of Transportation  Dennis Mitchell  Jack Marchant  City of Portland  Bill Kloos  TriMet  Portland State University  Oregon Engineering and Technology Industry Council

32 Acknowledgments  Faculty  Dr. Robert L. Bertini  Associate Professor, Civil & Environmental Engineering and Urban Studies & Planning  Director, Center for Transportation Studies  Staff  Andy Delcambre  Spicer Matthews  Andrew Byrd  Andy Rodriguez  B.S., Computer Science, Portland State University  Peter Bosa  Ahmed El-Geneidy  Steve Hansen  School of Urban Studies & Planning, Portland State University

33 Feedback Your Opinions and Suggestions Please let us know what you think about existing or future:  Data sources  Performance measures  Data visualizations and summaries Contact us: Sign up for an account!