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SD Navigation ETA SD Navigation ETA

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Old 05-27-2008, 07:07 AM   #1
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SD Navigation ETA
Does anyone know how SD Nav ETA is estimated? Has anyone ever notice that its never correct? Went camping this week in the white mountains and I know its a 3hrs trip atleast and SD said it would take an hour 30 mins. How is this estimated and updated? Just looking to see how it works and its calculated and if theres a way to get a more realtime eta.
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Old 05-27-2008, 07:17 AM   #2
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I`m having some of the same issues. My problem is the other way around. If I`m on a known 3 hour trip, it could say ETA in 3 hour 50 mins.
IMHO ETA is calculated based on roadspeeds. Have done some testing on this matter. I have put more accurate roadspeed now. Seems to be more correct, but not 100%
Maybe I have to do more testing, and of course reading aswell.
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Old 05-27-2008, 07:44 AM   #3
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I see. I wonder how google maps, mapquest, and ms streets and trips does it.
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Old 05-27-2008, 08:14 AM   #4
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I dont know if you know this, but you have to manually put in roadspeeds in mappoint. You do this inside SD.
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Old 05-27-2008, 08:17 AM   #5
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Yea I've put in the Road Speeds, but I think they are a bit high if a 3hr trip is taking an hr. lol
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Old 05-27-2008, 08:36 AM   #6
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Nah. could be you are the unaware owner of a semi-time machine. LOL
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Old 05-27-2008, 08:40 AM   #7
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haha, went camping this weekend and my friend was talking about how he perfected time travel. sleeping..... woke up and wow its 7hrs later.
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Old 05-27-2008, 12:15 PM   #8
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Part of the problem is that it shows the ETA relative to midnight. That is an ongoing bug that hasn't been resolved yet...
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Old 05-27-2008, 12:29 PM   #9
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Quote: Originally Posted by froalskiner View Post
Part of the problem is that it shows the ETA relative to midnight. That is an ongoing bug that hasn't been resolved yet...

Que?
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Old 05-27-2008, 12:33 PM   #10
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ignore last post sorry.
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Old 05-27-2008, 12:46 PM   #11
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Quote: Originally Posted by ViViper1 View Post
ignore last post sorry.

Yeah...It seemed like a simple fix...

current time+length of trip=ETA....but for some reason it shows 12:30am on a 30 minute trip no matter what time it is....
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Old 05-28-2008, 08:17 PM   #12
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Quote: Originally Posted by ViViper1 View Post
haha, went camping this weekend and my friend was talking about how he perfected time travel. sleeping..... woke up and wow its 7hrs later.


Gotta say, that was hilarious, lol

Nice one
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