Adaptive Traffic Control Deployments in the US – A New Database Tool and the First Lessons Learned

1. Adaptive Traffic Control Deployments in the US – A New Database Tool and the First Lessons Learned Florida's I3 Transportation Showcase Aleksandar Stevanovic, Ph.D., P.E. June 25th, 2019; Orlando Session - Technologies to Improve Arterial Operations

2. Presentation Overview • Adaptive Traffic Control Systems – definition, overview of the current state of the industry, and ATCS performance measures • NCHRP project overview, goal, and tasks • Data categorization for (AT)2C • (AT)2C screenshots and dashboards • Preliminary results of (AT)2C filtering options

3. Definition Of ATCS I • An ATCS adjusts, in (near) real time, signal timings and phasing based on current traffic conditions, traffic demand, and system capacity. • Broad definition to include all major ATCSs that may vary significantly in their levels of responsiveness, algorithmic framework, and detection. • Does not include traffic-responsive pattern selection and purely actuated (free or coordinated) types of traffic signal control.

4. ATCS Deployed/Available in US • NWS Voyage (Northwest Signal/Peek) • OPAC (Schneider Electric) • QuicTrac (McCain) • RHODES (Not commercially available) • SCATS (TransCore) • SCOOT (Siemens) • SURTRAC (Rapid Flow Technologies) • SynchroGreen (Trafficware) • Transparity (McCain) • UTOPIA (Swarco) • Xtelligent (Xtelligent) • ACDSS (KLD Engineering & TransCore) • ACS Lite (Siemens) • Balance/Epics (PTV AG) • Centracs Adaptive (Econolite) • InSync (Rhythm Engineering) • ITACA (Schneider Electric) • Kadence (Kimley-Horn Associates) • LADOT ATCS (Not commercially available) • Marlin (Peek) • MAC (Delcan) • MaxAdapt (Intelight) • MOTION (Siemens)

5. US Adaptive Traffic Control Systems 2009 28

6. US Adaptive Traffic Control Systems 2014 146

7. US Adaptive Traffic Control Systems 2018 https://www.google.com/maps/d/viewer?mid=17gN_VQSZfNA-oIj7UB_QstT_z6E&hl=en&ll=46.976221041813275%2C-106.45975100000004&z=4 360 https://www.google.com/maps/d/viewer?mid=z1vKKpwJWHk0.kIwxhy_e4uU4&hl

8. Current Market Share of ATCS Brands

9. State of Current ATCS Deployments in US • More than 330,000 traffic signals in the US (2) • Total number of signals under ATCS – more than 11,200 (~3%) • More than 350 ATCSs deployed in ~ same number of communities • More than 40 states deploy ATCSs (leaders are CA, PA, VA, FL) • Largest ATCS deployment with non-commercially available technology – LA ATCS in LA (>4,500 signals) • A largest ATCS deployment with commercially available technology – SCATS in Oakland County (MI) (>750 signals) • ATCS technology with largest # of deployments – InSync (>190 deployments)

10. Assessment Tool for Adaptive Traffic Control – (AT)2C Development OF (AT)2C TOOL

11. Database Tool for ATCS Goal: Develop an intuitive tool to help practitioners assess performance of various Adaptive Traffic Control Systems and make facts-based decisions for appropriate ATCS deployments.

12. Project Tasks • Conduct literature review • Develop data categorization framework – think of all of the ways to enable users to filter out the ATCS data • Design an MS Excel tool (AT)2C based on approved data categorization • Design survey for ATCS agencies • Deploy the survey and collect the data • Populate the (AT)2C database with LR and survey data • Perform a number of filtering cases and report results • Develop (AT)2C user manual and final report

13. Data Categorization – Section A

14. Data Categorization – Section B

15. Data Categorization – Section C

16. Data Categorization – Section D

17. Basic Info about Survey • 349 agencies in the USA and 11 in Canada were invited • Survey was developed in online form – SurveyMonkey • Survey delivered on February 22nd, 2019 • So far 35 agencies participated • Of those agencies 29 provided valid responses (6 never had any ATCS deployments) • In total 51 deployments were reported • There was in total 42 evaluations reported but only 32 have data available • 30 other evaluations were added from LR and online studies • In total the database will have around 70 ATCS evaluations by the end of summer, probably ~ 100 by the end of year

18. States’ Participation in Survey

19. Excerpt from the Database

20. Dashboard – Agencies & Deployments

21. Dashboard – Deployed ATCSs

22. Infrastructure & Costs Dashboard

23. Dashboard – Evaluation Details

24. Basic Evaluation Results

25. Dashboard – Advanced Filtering

26. Advanced Filtering Options

27. (AT)2C User Manual

28. Assessment Tool for Adaptive Traffic Control – (AT)2C SOME OF FINDINGS FROM (AT)2C

29. Number of Signals Controlled by Agencies

30. Number of Signals per ATCS Deployment

31. Average Installation Time per ATCS Brand

32. Reasons to Deploy ATCSs

33. Fine-tuning Frequency of pre-ATCS TOD Plans

34. Number of Evaluation Studies per ATCS Brand

35. Distribution of Evaluation Entities

36. Evaluation Types

37. Example of Benefits (Fully Actuated Before)

38. Example of Benefits (Sole-source Procured)

39. Example of Benefits (SynhcroGreen)

40. Example of Benefits (AADT>55,000)

41. Benefits for Rarely Retimed Pre-ATCS TODs

42. Presentation Too Short for all Results … and many more…

43. Conclusions • A new tool to investigate success of ATCS deployments is (almost) ready • The project will be completed by the end of summer and it is realistic to expect that the tool will be available publicly by the end of the year • In meantime we will continue to add new data from ATCS evaluations • Hopefully interested parties will find this tool helpful to understand success and aspects of ATCS deployments • The tool can be used to make more informative decisions when procuring new ATCSs

44. Closing Page Thank you! astevano@fau.edu