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Safety Warning System (SWS)
Fixed Messages* (U.S. version)

64 fixed messages total

    Highway Construction or Maintenance
  1. Work Zone Ahead
  2. Road Closed Ahead/Follow Detour
  3. Bridge Closed Ahead/Follow Detour
  4. Highway Work Crews Ahead
  5. Utility Work Crews Ahead
  6. All Traffic Follow Detour Ahead
  7. All Trucks Follow Detour Ahead
  8. All Traffic Exit Ahead
  9. Right Lane Closed Ahead
  10. Center Lane Closed Ahead
  11. Left Lane Closed Ahead
  12. -- future use --
  13. Stationary Police Vehicle Ahead

    Highway Hazard Zone Advisory

  14. Train Approaching/At Crossing
  15. Low Overpass Ahead
  16. Drawbridge Up
  17. Observe Bridge Weight Limit
  18. Rock Slide Area Ahead
  19. School Zone Ahead
  20. Road Narrows Ahead
  21. Sharp Curve Ahead
  22. Pedestrian Crossing Ahead
  23. Deer/Moose Crossing
  24. Blind/Deaf Child Area
  25. Steep Grade Ahead/Truck Use Low Gear
  26. Accident Ahead
  27. Poor Road Surface Ahead
  28. School Bus Loading/Unloading
  29. No Passing Zone
  30. Dangerous Intersection Ahead
  31. Stationary Emergency Vehicle Ahead
  32. -- future use --

    Weather Related Hazards

  33. High Wind Ahead
  34. Severe Weather Ahead
  35. Heavy Fog Ahead
  36. High Water/Flooding Ahead
  37. Ice On Bridge Ahead
  38. Ice On Road Ahead
  39. Blowing Dust Ahead
  40. Blowing Sand Ahead
  41. Blowing Snow Whiteout Ahead
  42. -- future use --

    Travel Information / Convenience

  43. Rest Area Ahead
  44. Rest Area With Service Ahead
  45. 24 Hour Fuel Service Ahead
  46. Inspection Station Open
  47. Inspection Station Closed
  48. Reduced Speed Area Ahead
  49. Speed Limit Enforced
  50. Hazardous Materials Exit Ahead
  51. Congestion Ahead/Expect Delay
  52. Expect 10 Minute Delay
  53. Expect 20 Minute Delay
  54. Expect 30 Minute Delay
  55. Expect 1 Hour Delay
  56. Traffic Alert/Tune AM Radio
  57. Pay Toll Ahead
  58. Trucks Exit Right
  59. Trucks Exit Left
  60. -- future use --

    Fast / Slow Moving Vehicles

  61. Emergency Vehicle In Transit
  62. Police In Pursuit
  63. Oversize Vehicle In Transit
  64. Slow Moving Vehicle

Police Traffic Radar Handbook
Chapt 7.1 -- SWS Messages

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