English

Noun

fractal response time ‎(plural fractal response times)

1. A measure of response time which uses the concept of fractal dimension in order to resolve variability of average response time with respect to sample size of time series.^[1]
   • 2011, City of Houston, HFD Emergency Medical Services

     To properly serve the city, ambulance units must be located in a manner that best services all the residents of the city. The location of ambulances is based on the concept of fractal, rather than average response times. Measuring the response time of all sectors of the city derives the fractal response time. Our goal is to have a first responder or BLS on-scene in less than four minutes and an ALS on-scene in less than eight minutes on 90% of all calls.

References

1. ↑ Gauging the Fractal Dimension of Response Times from Cognitive Tasks by John G. Holden (2005)