ITE District 6 Annual Meeting 1 Implementing a Web-based Transportation Data Management System Prepared for: ITE District 6 Annual Meeting Honolulu, Hawaii June 26, 2006 Prepared by: Steven Boice Graduate Research Assistant Portland State University

ITE District 6 Annual Meeting 2 Outline Introduction System Interface System Design Issues Encountered Conclusions and Future Work

ITE District 6 Annual Meeting 3 Introduction Abundance of paper based transportation data (i.e. traffic counts) –Difficult to access efficiently –Paper files take up space Web based interface –View, insert, and manage transportation data Google Local –Provide user-friendly map-based interface

ITE District 6 Annual Meeting 4 System Interface

ITE District 6 Annual Meeting 5 Querying Traffic Counts Google Map –Markers indicate locations of counts Narrow displayed markers using selection criteria –Period (AM/PM) –Time Range (Last 6 months, Last year, Last 2 years, > 2 years) –Data Type (Intersection, Roadway) –Jump to a particular address

ITE District 6 Annual Meeting 6 View Count(s) for an Intersection

ITE District 6 Annual Meeting 7 Viewing Traffic Counts Select a marker to view the count(s) available for that location Count type, day of week, year, start and end time Click “More Info” to see detailed information for this count Click “File” or to display the traffic count file itself –Currently, count files are typically.pdf’s (scanned from paper documents)

ITE District 6 Annual Meeting 8 Count Detail

ITE District 6 Annual Meeting 9 Count Detail Count detail includes –Specific location and time of count –File type –Information about where the file came from (accountability) Functionality –Download File –Edit or Delete count (approved administrators only)

ITE District 6 Annual Meeting 10 Add a New Count Location

ITE District 6 Annual Meeting 11 Add a Count to a Location

ITE District 6 Annual Meeting 12 Administrative Interface Adding New Data –Add location (if necessary) – User specifies location name, latitude, longitude automatically generated –Checks in place to detect errors such as duplicate counts in one location Web Interface Supports –Edit, remove locations and counts –Add/remove count data types –Add/remove file format descriptions Adding Counts to the System –Administrative tasks restricted to users designated as Moderators

ITE District 6 Annual Meeting 13 Issues Encountered Data Collection –Meta-information (count location, start & end times, etc.) must be manually extracted from.pdf files – requires person-power –Need automated interface for certain types of users Data Quality –Entries created by various organizations  data quality requirements and checks necessary

ITE District 6 Annual Meeting 14 Conclusions and Future Work System effective for storage and retrieval of traffic data Map interface – quick spatial query Support additional transportation data –Signal timings, intersection geometries, cross sections, etc. Establish multiple sources

ITE District 6 Annual Meeting 15 Acknowledgements Tim Welch and Kristin Tufte –Department of Computer Science, Portland State University Ransford S. McCourt and Alan Snook –DKS Associates Robert L. Bertini –Department of Civil and Environmental Engineering, Portland State University

ITE District 6 Annual Meeting 16 Questions?