Selecting speeds for calculating fastest route

hampsteaduk · Occasional Visitor Joined: Dec 27, 2006 Posts: 3

Hi All

Complete Newbie on these forums so apologies if I am asking a FAQ, posting in the wrong place or making some other blunder.

I'm looking for an all-in-one sat-nav that can be taken from car to car. Is there one that lets you set the average speed you expect to drive on different types of roads?

I've read you used to be able to do that with the old TomTom Navigator 3, but later versions don't have the feature any more - maybe another brand has that feature.

Thanks,

Matt.

philpugh · Posted: Wed Dec 27, 2006 3:27 pm Post subject:

Not that I am aware of. However this 'feature' of letting you know the time of arrival is overated in my (humble) opinion! I was a TT3 user and found I kept adjusting the speeds to fit the time it was taking me to get from A to B. At the end of the day I haven't missed the feature in later versions - I ignore the information in TT6 - I use the "distance to go" but not "time to go" as I am quite often not able to influence this to any degree. You can always driver more slowly but it is not usual to go much faster than you are due to road conditions.

Over many years of doing 30k+ years per annum in cars, I used to estimate long journeys (e.g. Home (Cheshire) to Reading) at 50mph average - this accounted for such things as local roads, the Birmingham M6 car-park (pre Toll Road) and a stop for coffee/loo etc. This 'average' seemed to hold true for many years. Even with the toll road I suspect that it hasn't risen by all that much - I gave up doing that sort of mileage a few years back (just as the toll road opened :D ) and don't miss it at all.

DennisN · Posted: Wed Dec 27, 2006 4:14 pm Post subject:

hampsteaduk · Occasional Visitor Joined: Dec 27, 2006 Posts: 3

Thanks philpugh!

My reason for asking was not so much for the arrival time estimate as it is for calculating the route it takes you on. There are a couple of potential scenarios that have had me wondering about this -

I've got two vehicles, both can keep up with the traffic on motorways, but one of them is a bit slow when it comes to the country lanes, so when I'm in the slow one I'd like to factor in a lower average speed on minor roads.

I travel on motorways at different times of the day - a higher average speed is possible late at night than in the rush hour, say, so I'd like to be able to plan accordingly.

Still, if it can't be done, it can't be done!

Cheers,

Matt.

DennisN · Posted: Wed Dec 27, 2006 6:43 pm Post subject:

There is ONE thing you can do with the TomTom Go, which is plan type of route from the following choices ...
1. Fastest
2. Shortest
3. Avoid Motorways
4. Walking Route
5. Bicycle Route
6. Limited Speed
That last one can be set to, say 50mph. But it's a very limited option - the whole journey would be planned not exceeding 50mph, so you might never see any A roads!
Fastest is according to the TT calculation - extra 30 miles on "faster" roads could save you 1 minute.
Shortest can take you via some small runs, saving a yard in distance at the cost of several minutes' time.
All very computer logic I'm afraid.
_________________
Dennis

If it tastes good - it's fattening.

Two of them are obesiting!!

hampsteaduk · Occasional Visitor Joined: Dec 27, 2006 Posts: 3

Thanks DennisN

I guess the field is wide open - no doubt I will have some more silly questions about particular models soon!

Matt.

Border_Collie · Posted: Wed Dec 27, 2006 6:59 pm Post subject:

DennisN · Posted: Wed Dec 27, 2006 8:10 pm Post subject:

Skippy · Posted: Wed Dec 27, 2006 8:28 pm Post subject:

oddsock · Posted: Wed Dec 27, 2006 9:23 pm Post subject:

Skippy · Posted: Wed Dec 27, 2006 9:49 pm Post subject:

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