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jimstdi Occasional Visitor
Joined: 04/09/2003 21:15:29 Posts: 1 Location: United Kingdom
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Posted: Sun Sep 14, 2003 8:04 am Post subject: Shortest/Quickest |
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bonze Occasional Visitor
Joined: 07/08/2003 14:47:18 Posts: 25 Location: United Kingdom
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Posted: Sun Sep 14, 2003 8:04 am Post subject: Shortest/Quickest |
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Am I missing an obvious configuration option.
TTN2 seems to default to Quickest route type, but that isn't always required, especially as it always heads for the nearest motorway.
Also yesterday I had calculated a route from Somerset to home using Shortest route which nicely avoided the M5 & M4. I missed a turning and TTN2 recalculated the route to take me to the motorways. most annoying. _________________ TomTom 920T |
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TonyP Regular Visitor
Joined: 07/01/2003 17:12:34 Posts: 94 Location: Belgium
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Posted: Sun Sep 14, 2003 8:04 am Post subject: Shortest/Quickest |
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That's how it works. "Quickest" is easier to calculate so it always uses Quickest to recalculate.
In theory, after the route is calculated you can use the "Avoid road" option to recalculate avoiding a certain road, but in practice the road you want to avoid is never listed. It only lists the next few roads on the route, so if you want to avoid the M5 you have to wait until you are nearly on it before you have the option of avoiding it.
I seem to have the opposite problem, often TTN will route me along main roads when the nearby motorway is much quicker. That is because it assumes it can cruise at 40-50mph along the main roads when in reality there are traffic lights every 100yds.
I suppose we really need a Prefer/Avoid motorway option. |
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Chorlie Regular Visitor
Joined: 30/07/2003 16:33:35 Posts: 92 Location: United Kingdom
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Posted: Sun Sep 14, 2003 8:04 am Post subject: Shortest/Quickest |
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Try re-setting you speed setting within TTN2, the program will make the calculation from these speed settings, so if the Motorway is set for 70mph and the 'A' Roads 50mph it maybe quicker via the Motorway but if you travel along it at busy times & therefore not averaging 70mph but only 60mph it would be slower, so if TTN2 was set to 60mph it could calcuate the 'A' Road at 50mph as quicker (you would need to play with the speed setting to find the correct one).
Likewise if its routing you via 'A' Roads and the Motorway is quicker, increase the Motorway speed or decrease the 'A' Road speed.
Not sure if this will work but what else would the Speed setting be there for. _________________ Chorlie
If it isn't broken, play with it some more...
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TonyP Regular Visitor
Joined: 07/01/2003 17:12:34 Posts: 94 Location: Belgium
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Posted: Sun Sep 14, 2003 8:04 am Post subject: Shortest/Quickest |
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It is true, decreasing Motorway speed makes it favour non-motorway roads, and you get a warning, with an option to reset the defaults.
On the other hand it is difficult to get it to favour motorways. If you set the Motorway speed too high it is likely to start taking you on long detours to avoid a bit of main road.
It is not easy to reduce the speed on non motorway roads because there are so many different types. |
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