Sunday, October 7, 2012

GMF

Acronym for Google Maps Factor

This is used during G&R to estimate driving time to one's destination.

Thumb rule for GMF

  1. Nation Highway on Plain Land
    If you are travelling on National Highway on plain land the GMF is 1.2 to 1.1. Basically multiply the Google maps estimate by this factor. Even if you drive a tad slowing during night, this estimate is not expected to vary too much since there will be less village/town vehicle traffic.
     
  2. Nation Highway at Hilly Region
    The GMF is 2.0 to 1.7 times. yes, that would be almost double of Google maps estimate. If you are driving after sunset, the estimate is 1.1 of day estimate. 


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