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Driving speeds used for route calculation.

 
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TomDavison
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Joined: Mar 02, 2006
Posts: 384
Location: Bedford, England

PostPosted: Sun Jun 25, 2006 12:45 pm    Post subject: Driving speeds used for route calculation. Reply with quote

Despite searching previous topics, I can't find the details of the speeds used for the various roads when the 700 is determining fastest routeing.

However, if you enter a route and then preview it, as the cursor follows the route, there are speeds shown at the bottom of the screen. These show the imaginary vehicle driving along roads, slowing down for corners and roundabouts etc, then speeding up to a variety of steady speeds. Are these the speeds used for "fastest route" calculation, or just arbitrary figures for the route demo?

Tom
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lbendlin
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Joined: 02/11/2002 22:41:59
Posts: 11878
Location: Massachusetts, USA

PostPosted: Sun Jun 25, 2006 6:29 pm    Post subject: Reply with quote

those are just demo speeds. The speed limit (range) for the streets are not exposed to the end user.
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pepperm
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Joined: May 13, 2006
Posts: 48

PostPosted: Sun Jun 25, 2006 7:21 pm    Post subject: Reply with quote

The sppeds are exposed on my TT910. It displays the road speed in the bottom right hand corner just after my actual speed. It all goes red when I exceed the speed limit too.

Mark
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alix776
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PostPosted: Sun Jun 25, 2006 7:35 pm    Post subject: Reply with quote

thoughs are the road speed limits and may not be the speed used for route calulation Wink
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Oldboy
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Joined: Dec 08, 2004
Posts: 10642
Location: Suffolk, UK

PostPosted: Sun Jun 25, 2006 8:38 pm    Post subject: Re: Driving speeds used for route calculation. Reply with quote

TomDavison wrote:
I can't find the details of the speeds used for the various roads when the 700 is determining fastest routeing.
Currently the speed for Dual Carriageways of all sorts is 62mph. Presumably this is to allow for any holdups.

I haven't tried the National Single Carriageway (60mph) speed calculation.
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