Acceleration4TrackProcess Description

This process computes the mean acceleration for a track.

Algorithm Description

The different steps are as follows:

  • process iterates over all pairs of consecutive measurements
    • travel distance
      • computes the distance between consecutive measurements and sums it up to the total distance per track
    • travel time
      • stores first and last time stamp and then computes the travel time (in minutes)
    • mean speed
      • computes the average of all speed values
    • mean acceleration:
      • computes the duration (delta_time) and difference in speed (delta_speed)
      • computes the acceleration (ratio between delta_speed and delta_time; currently only positive values, which means an increase in speed, are considered

Process Parameters




  • trackID
    • Type: String
    • Description: ID of track for which mean acceleration should be computed

  • meanAcceleration:
    • Type: double
    • Description: Mean acceleration of track.
  • meanSpeed:
    • Type: double
    • Description: Mean speed of track in km/h.
  • travelDistance:
    • Type: double
    • Description: Distance of a track in meters.
  • travelTime:
    • Type: double
    • Description: total time traveled in minutes.
Topic revision: r1 - 18 Jul 2014, ChristophStasch
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