back of queue detection edward d cox indiana dot
play

Back of queue detection Edward D. Cox, Indiana DOT 1 Back ck of - PowerPoint PPT Presentation

Back of queue detection Edward D. Cox, Indiana DOT 1 Back ck of queue, queue, m many option ons available today ay 2 Smar mart w work zone t technology 3 Probe Data choices Dashboards & Services VS. Real Time Data Feed 4 INDO


  1. Back of queue detection Edward D. Cox, Indiana DOT 1

  2. Back ck of queue, queue, m many option ons available today ay 2

  3. Smar mart w work zone t technology 3

  4. Probe Data choices Dashboards & Services VS. Real Time Data Feed 4

  5. INDO DOT’s P Probe Da Data J Journey First purchased in 2011 due to major interstate closure. • • Evaluated multiple vendor data sets • Verified data quality • Built our own tools • Increased saturation • Improved segmentation of roadways 5

  6. INDOT’s Probe Da e Data • interstate segments per minute = 6,659 • non-interstate segments per minute = 34,829 records per day = 59,742,720 • • records per week = 418,199,040 • records per year = 21,806,092,800 • storage per year = 3.63 TB segment update every six months • • We lose less than 1 minute of data per day on any segment 6

  7. Da Data V Verification 7

  8. Real-time Data Validation Test segment

  9. Real-time Data Validation INRIX speed 55 50 Delay 45 GPS speed (5 minutes) 40 35 MPH 30 25 20 15 Test segment 10 22:26 22:27 22:28 22:29 22:30 22:31 22:32 22:33 22:34 22:35 22:36 22:37 Actual vehicle time on segment

  10. The Delta Speed Concept Delta Speed: Difference in speed at the endpoint between segments. This is where we need to focus Direction of Travel our attention. High speed to low speed indicates the back of a queue Segment 1 Segment 2 Segment 3 Segments Real Time Data 68 MPH 35 MPH 70 MPH (every minute) -2 mph -33 mph Delta Speed

  11. Web Based Tools • Delta Speed Tool

  12. De Delta S Speed T peed Tool

  13. Incident Detection Application Purdue & INDOT Incident Detection Application New to Old M a g n i t u d e

  14. Slow or stopped traffic Previous back of queue Back of queue, growing Fast moving traffic

  15. Slow or stopped traffic Delta speed is decreasing Previous back of queue Back of queue, growing Fast moving traffic

  16. Back of queue, growing

  17. Incident Detection Application Filter by route and mile marker

  18. Incident Detection Application Filter by current active workzones

  19. Incident Detection Application Filter by State Police patrol boundaries

  20. Officer Using Delta Speed

  21. Traffic Ticker Selections

  22. Greenfield District Heatmap and Crash with Time and Location Property Damage Only Injury Fatal Snow Route

  23. Weekly reports on each work zone

  24. Heat at Maps ps Property Damage Only Injury Fatal Snow Route

  25. Heat Maps: Crash I-65

  26. Ques uestions ns? Edward D. Cox, Indiana DOT 26

Recommend


More recommend