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The Future Development of Traffic Signals and the Impact of Autonomous Vehicles

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Graeme Pattison

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The Future Development of Traffic Signals and the Impact of Autonomous Vehicles

  1. 1. The Future Development of Traffic Signals and the Impact of Autonomous Vehicles Graeme Pattison
  2. 2. • Brief history of signals • Where technology is now • The Autonomous Vehicle situation • Current signal developments • Signal ITS developments • What the future may bring
  3. 3. Traffic signals are used to improve traffic flow
  4. 4. And to improve road safety
  5. 5. Conflict points at a simple intersection
  6. 6. The first road traffic signals and J P Knight
  7. 7. Public education for road safety 1868
  8. 8. a Lester Wire, with his two color traffic signal http://designobserver.com/feature/red-light-green-light-- the-invention-of--the-traffic-signal/8627/ An acetylene gas light beacon USA
  9. 9. Sydney’s first traffic signals at Kent and Market Sts 1933
  10. 10. The Electromatic Controller Neon tube timer with cam and relays
  11. 11. A pedestrian ‘PJ” signal controller – designed in-house
  12. 12. Sydney’s CBD VC4 controller also designed in-house
  13. 13. VC4 controller programming using plug in links
  14. 14. The AWA Unitac controller – valves, uniselectors, relays and happy technicians
  15. 15. The world’s first microprocessor based controller – DMT/Philips 1974
  16. 16. The signal lantern design has changed little in 80 years
  17. 17. Victoria Rd Gladesville showing a concrete mast arm
  18. 18. Melbourne’s 1928 clock face style traffic signals
  19. 19. The first signals push button There were many design types before signals became standardised
  20. 20. Early NSW vehicle detector using a rubber tube embedded in the pavement and a pressure switch
  21. 21. SCATS creator Arthur Sims
  22. 22. Proposed holographic signal
  23. 23. An actual traffic signal using projection onto a water curtain – SHT SoftStop
  24. 24. Eurokey for WALK time extension GreenMan Plus for elderly, Singapore
  25. 25. Krabi Thailand
  26. 26. Intelligent Lantern innovations
  27. 27. Adding timing displays
  28. 28. Yet more lantern concepts
  29. 29. http://www.dezeen.com/2014/09/17/interactive-dancing-traffic-lights-installation-smart-car-lisbon/ Animated Lanterns
  30. 30. Smartphone Signal Apps
  31. 31. Autonomous Vehicle communication links
  32. 32. Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (VTI) concept
  33. 33. V2V, V2I and Traffic Control Centre
  34. 34. Early Vehicle to Vehicle Communications (V2V)
  35. 35. http://www.sae.org/misc/pdfs/automated_driving.pdf
  36. 36. Google autonomous vehicle operation
  37. 37. Identifying what’s at the intersection
  38. 38. Planning the route
  39. 39. Anticipating every movement
  40. 40. Covering signs, signals, vehicles, bikes, pedestrians, topography
  41. 41. http://e2e.ti.com/blogs_/b/tilive/archive/2015/03/17/lidar-cameras-radars-action-the-road-to-autonomous-vehicles?keyMatch=vehicle %20sensors&tisearch=Search-EN-Everything Many sensor systems are required
  42. 42. An early Australian one horsepower autonomous vehicle
  43. 43. A wide angle multi-approach video vehicle detector (GridSmart) Combined video and thermal detector for vehicles and pedestrians
  44. 44. Every driver is acting autonomously
  45. 45. Vehicles operating autonomously may not be efficient Arc de Triomphe, Paris
  46. 46. Slot based intersection control
  47. 47. Signal priority for sale
  48. 48. The CITI Project (Cooperative Intelligent Transport Initiative) Australia’s first cooperative ITS deployment NSW Centre for Road Safety, NICTA • Seven signal sites • 200 heavy vehicles • 50 light vehicles • 10 buses • 1 level crossing • V2V and V2I • Red traffic signal alerts • Speed Limit warnings • Collision warnings • Heavy braking alerts New system announced for over 100 trucks and 100 intersections on Parramatta Rd, Pennant Hills Rd and King Georges Rd
  49. 49. SPaT (Signal Phase and Timing) Communicates signals information to approaching vehicles Increases “Time Horizon” by providing coming phase changes before signal display changes Demonstration video http://youtu.be/wznpUv2PucQ
  50. 50. SCATS development for vehicle priority
  51. 51. The award winning Queensland Vehicle Priority & Pre-emption System
  52. 52. Demonstration of long distance on-road truck platooning (Rotterdam, April 2016) https://www.youtube.com/watch?v=G-xOEJb4LEU
  53. 53. end

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