Quote Originally Posted by nail54 View Post
This may sound like a very basic question but can someone explain what different results would be expected by selecting 'Minimise Distance' v. 'Minimise Time' when setting up a route? In what way is the route calculation expected to be different? .... after all, for example, wouldn't a shorter distance be the shorter time? I use an Oregon and have tried devising routes with both options but am still unable to fathom it. Thanks.
for example, wouldn't a shorter distance be the shorter time?
Only if: you can travel both routes at equal average speeds.
I think you are over simplifying your analysis.

If you have to have to go someplace from "A" to "B" consider the choices.... for example

Would you rather get from A to B on a faster time route using mostly highway roads where
Route distance = 25 miles
Route time = .5 hrs (30 min)
Your Avg speed = 25 mi/.5 hrs = 50 mph

Or would you rather take a shorter distance (save 5 miles) route using secondary roads with traffic, stoplights, slower speed limits, etc.
Route Distance = 20 miles
Route time = .75 hrs (45 min)
Your Avg speed = 20mi /.75 hrs = 26 mph

Your choice! but there IS a difference based on the GPS selection of roads and their travel properties. In real life I'm sure you've gone out of your way (taken the long way) to save time and avoid traffic congestion.

I personally find that unless I'm familliar with specific patterns in a travel area, that the "Faster Time" setting is generally a much better choice. Your GPS routes are mathematical calculations based on built in road properties. With the possible exception of real time limited traffic information on some GPS models, they have NO situational awareness of the real world of travel.