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Day2-1600-Telemetry, global traffic and OSM

sotm2017
September 01, 2017

Day2-1600-Telemetry, global traffic and OSM

sotm2017

September 01, 2017
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  1. T E L E M E T R Y enhancing

    & unlocking new potential in OSM
  2. OV E RV I E W what is telemetry? how

    does Mapbox handle telemetry data? what we can calculate from telemetry data? what are the use cases? traffic
  3. T E L E M E T RY any data

    collected from a remote device [lng, lat, alt, timestamp] telemetry pipeline clock GPS sensor +
  4. “trace” [ [x, y, z, t], [x, y, z, t],

    [x, y, z, t], [x, y, z, t] ] P RO B E VS . T R AC E
  5. P R I VAC Y only store anonymised data data

    is encrypted using industry best practice clear boundaries around who has access & for what reason audit-able access logs more info – https://www.mapbox.com/telemetry/
  6. “probe” [x, y, z, t] “trace” [ [x, y, z,

    t], [x, y, z, t], [x, y, z, t], [x, y, z, t] ]
  7. VO LU M E from probe density missing streets satellite

    imagery alignment health of satellite imagery
  8. VO LU M E from probe density missing streets satellite

    imagery alignment health of satellite imagery
  9. VO LU M E from probe density missing streets satellite

    imagery alignment health of satellite imagery telemetry density raster satellite imagery edge detection edge detection vertical offset horizontal offset *
  10. VO LU M E from probe density missing streets satellite

    imagery alignment health of satellite imagery telemetry density poor imagery quality
  11. M A N E U V E R S from

    trace density restrictions (turns, one-ways) high-precision trajectory of lane centreline for ADAS traces present absence of traces
  12. M A N E U V E R S from

    trace density restrictions (turns, one-ways) high-precision trajectory of lane centreline for ADAS
  13. T R A F F I C from speed, bearing,

    acceleration road congestion traffic-aware navigation
  14. T R A F F I C from speed, bearing,

    acceleration road congestion traffic-aware navigation
  15. W H Y T R A F F I C

    origin destination estimated trip duration (ETA) date-time traffic-powered OSRM OSRM public demo server
  16. T R A F F I C P RO F

    I L E telemetry-based dynamic coverage fluctuates (never 100%)
  17. N O I S E R E M OVA L

    duration distance speed bearing deceleration acceleration modality
  18. P RO B E M ATC H distance from road

    bearing from road highway hierarchy
  19. P RO B E M ATC H distance from road

    bearing from road highway hierarchy
  20. P RO B E M ATC H distance from road

    bearing from road highway hierarchy
  21. P RO B E M ATC H distance from road

    bearing from road highway hierarchy higher rank lower rank
  22. P RO B E M ATC H tertiary road distance

    from road bearing from road highway hierarchy
  23. N O R M A L I S E D

    G R A P H traffic data uses split at road class change intersection merge otherwise.
  24. N O R M A L I S E D

    G R A P H traffic data uses split at road class change intersection merge otherwise.
  25. N O R M A L I S E D

    G R A P H traffic data uses split at road class change intersection merge otherwise.
  26.        0 20 40

    60 80 100 120 140 160 Speed [kph] Count [-] W H I C H S P E E D
  27.        0 20 40

    60 80 100 120 140 160 Count [-] W H I C H S P E E D primary secondary tertiary motorway trunk links alleys service roads …etc. Speed [kph]
  28. N O R M A L I S E D

    G R A P H traffic data uses
  29. E D G E - BA S E D G

    R A P H OSRM uses transform maneuver → edge street → node
  30. segments N O R M A L I S E

    D G R A P H traffic data uses E D G E - BA S E D G R A P H OSRM uses
  31. segments N O R M A L I S E

    D G R A P H traffic data uses E D G E - BA S E D G R A P H OSRM uses T R A F F I C M A P S I N C I D E N T S T U R N P E N A LT I E S R E A LT I M E T R A F F I C VO LU M E
  32. T E L E M E T RY ETA, error

    percentile, etc. layer against road network & attributes road network & attributes better, fresh satellite imagery where to focus (proactive) what is suspicious (proactive) where/what is an issue (reactive) where imagery is outdated DATA T E A M DATA T E A M S AT E L L I T E T E A M traffic