What is the workflow for determining service areas where:

  • Start point is given (helicopter depot)
  • Incident (accident requiring helicopter pickup)
  • End point is given (hospital)
  • Time from start point to incident to end point can only be 1 hour maximum.

The below image from the slide displays the basic example. The bottom left circle shows the most basic example where the incident point is 30minutes from the start point, thus 30minutes back to create a "circle" service area. When the incident point is 5 minutes from the start point, the end point can be 55 minutes from the incident point, and so-on.

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closed as too broad by Dan C, PolyGeo Jan 8 at 18:59

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