The document summarizes Chicago's traffic signals database. It notes that Chicago has over 26,000 intersections and 2,800+ signals that are maintained by three agencies. The database maps signals to specific intersections using latitude and longitude. It collects timing plans, images, and work orders. Future plans include migrating the database to Oracle 10g and linking it to other city databases to share traffic data across departments.

1. Chicago Traffic Signals Database Presented by: Abraham Emmanuel Traffic Management Authority – Office of Emergency Management and Communication (OEMC) City of Chicago

5. Separated Signal from the Geography (intersection) Signal 1 Signal 1A Signal 1B Signal 1C Intersection X Intersection Y Intersection Z Signal 2 Signal 2A Intersection W

6. Chicago Intersections Linked Signals to City Intersections using Lat/Log Chicago Intersections

7. City of Chicago Signalized Intersections End Product

8. What data is collected?

9. A Lot of Information…

10. Timing & Timing Plans…

11. Links to Video & Still Images…

12. Cable & Foundation Plans…

13. Intersection Details… Maps & Aerial Images…

14. … And Can Track Work Order.

17. Once completed the system should facilitate comprehensive traffic analysis Top Crash Intersections without a traffic signal

18. Questions? Chicago Signal Interconnect

19. Contact Information.. Traffic Management Authority - Office of Emergency Management & Communication 120 N Racine, Suite 200 Chicago, IL 60607 David Zavattero Deputy Director [email_address] (312) 743-7372 Abraham Emmanuel Principal Systems Programmer [email_address] (312) 743-7381