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TraX

TraX is a website for calculating your lap times on a race track, as well as collecting other information such as G-Forces, and streaming it live to any internet connected device. Previously recorded track sessions can also be viewed later and played back.

Please consider becoming a Patron to help support me.

Contact

Need help? Have questions? Think something is broken?

Submit a bug report or feature request
Get help on Campbell's Discord server
Send an email: TraX@campbellcrowley.com

Usage

Go to https://trax.campbellcrowley.com on a smartphone to record data
or
https://trax.campbellcrowley.com/viewdata/ to view previously recorded data
or
https://trax.campbellcrowley.com/live/ to view current data being recorded by you, your friends, or public sessions.

Features

  • Tracks smartphone GPS position, acceleration, and rotation.
  • Streams the data to a server
    • Server saves the data for later download
    • Server sends the data to friends in the live view page
    • Buffers data on device while internet connection is lost, then sends buffered data once connected again.
    • Users have a limit of the amount of data allowed to be stored on the server. This limit can be expanded by donating on Patreon.
  • Lap times while recording
    • Current session duration (since recording start)
    • Current lap time (since crossing start line, until crossing finish line)
    • Predicted lap time and split
      • Takes difference of best lap and current lap
      • Compares distance around lap of both laps, and takes the difference in time
      • Requires driving at least one lap first
    • Previous lap time
    • Your best lap time
  • Keeps device awake while recording
    • Chrome and Safari implemented
    • Firefox is insists on making this difficult...
  • Viewing recorded data
    • Your recordings as well as friends' recordings
    • Lap times
      • Fastest lap
      • Slowest lap
      • Average lap time
      • Split from best lap in individual laps
    • Speeds (based off what GPS reports)
      • Top speed
      • Lowest speed
      • Average speed
    • Max G-Force
    • Data plotted on map
      • GPS position
      • Linearly interpolated between datapoints
      • Realtime playback
      • Plotted line can be colored based off data (very slow to change currently)
    • Download recorded data for use in other apps
      • Data can be downloaded as a CSV or GPX for use in third party apps.
      • Raw data can also be downloaded, but is fairly useless to most people.

Future

  • Better UI (It's really bad rn)
  • Recording video (live streaming?)
  • Offline mode
  • Record while app/webpage is in background
  • App version
  • Crew
  • Social
    • Comparing times to friends
    • Commenting on friends
    • Setting a session as public/unlisted
    • Finding public sessions
  • Better data analysis
    • Snap GPS to known tracks
    • Auto detect track configurations
  • Store more information
    • Store car information with session data
    • Show weather information with session data
  • Configurable notifications
    • Received friend request
    • Friend beats your time
    • Friend is currently at a track
    • Friend is recording a track session

© Copyright 2018, Campbell Crowley