Timings

M8TJT · Posted: Mon Jul 12, 2010 9:07 am Post subject:

What are you running it on? Deep Blue?? Very Happy

If on a TT, then why do other previous posters' TTs take so long??

JoolsTwo · Posted: Mon Jul 12, 2010 9:20 am Post subject:

just tried the times on mine.
Rochdale-Cambridge = 16 secs
L/End - J O'Groats = 40 sec
London - Dublin = 52 secs

Thought I'd also try L/End - J O'Groats shortest route = 12mins 45 sec Shocked

BTW the route it calculated is 811ml and 20:44hrs
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TomTom ONE Series 30 (v8) & TMC traffic
App 8.010, UK & ROI Map v860.3126, TT Home 2.7.6.2056

Robin2 · Posted: Mon Jul 12, 2010 9:50 am Post subject:

It's intersting that my 720 is significantly slower than my old TT One New Edition, which did the Rochdale-Cambridge calculation in 14 seconds. But of course, the One doesn't have IQ routes.
Robin
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TomTom One v3 Europe, Navcore 7.903, Western Europe 835.2420
TomTom Go 720 Europe, Navcore 8.351, Western Europe 855.2884
Satmap Active 10
Plus a lot of other PDA GPS kit, seldom used

Andy_P · Posted: Mon Jul 12, 2010 11:55 am Post subject:

M8TJT · Posted: Mon Jul 12, 2010 12:02 pm Post subject:

And you actually believe all the guff that TT publish Joker

Andy_P · Posted: Mon Jul 12, 2010 12:14 pm Post subject:

I might not need to.... Wink

pcaouolte · Posted: Mon Jul 12, 2010 1:06 pm Post subject:

So, someone closes a road using mapshare and tomtom have to recalculate all the routes from everywhere to everywhere else all over again using their server farm?

If calculating the route from everywhere to everywhere else doesn't seem like an impossible task (it does to me) they must also have calculated it for each of the five minute time slots in a day to take advantage of IQ routes. I wonder how many starting/ending points there are in tomtom's definition of everywhere.

Very clever to wedge all of this info into 1GB of memory. I predict that when the next map is released the 1GB will expand to at least 1.000000000001GB and it wont fit on the device Laughing

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Paul

Border_Collie · Posted: Mon Jul 12, 2010 5:27 pm Post subject:

Not sure when the new iGO PRIMO will be available here but it looks very interesting. I wonder how long before TT catch up? Razz

LOOK HERE AND DROOL Very Happy

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Formerly known as Lost_Property
And NO that's NOT me in the Avatar.

Antoeknee · Lifetime Member Joined: Jul 29, 2005 Posts: 267

Am I missing something. Whilst its an interesting topic of discussion in the real world does it matter if a given route takes 45 seconds or 15 seconds to calculate?

The thing needed from a PND is good routing (another topic of discussion?) and if that takes a few seconds more personanlly I can't get worked up about it.

Andy_P · Posted: Wed Jul 14, 2010 10:57 am Post subject:

Here's why it's important....

You have started off on a long journey and you are in the middle of a complicated junction in a strange town.

You make a wrong turn.

Do you make a U-turn in the middle of a busy street (if possible) or will there be a way to correct yourself just up the road. If you carry on, will it make 1 mile difference to the journey or have you just committed yourself to a 20 mile detour?

A quick decision from the sat nav of what to do can make a huge difference. So fast re-routing calculations are very useful.

Same thing happens if you get diverted by roadworks in the middle of town, or if you deliberately decide to take a different route.

M8TJT · Posted: Wed Jul 14, 2010 3:05 pm Post subject:

I'm with Andy all the way. My iGO takes about two or three seconds to realise that I have diverted from its route, and takes but a few seconds to recalc. Much faster than my built in Honda satnav Confused

Although it could be a bit of a pain on a route from London to Rome Shocked

Border_Collie · Posted: Wed Jul 14, 2010 3:37 pm Post subject:

Antoeknee · Lifetime Member Joined: Jul 29, 2005 Posts: 267

OK I take the point about recalcualting a route whilst travelling. My now rather ancient TT500 seems to recalculate fairly quickly. In fact I can't recall a time where the recalc has been a specific issue.

I've navigated in and around some city centres and not really thought there was a specific issue with recalc. Maybe its my poor recollection but it seems that once the original route has been calcuated, usually longest step, any recalc whilst traveling takes only a few seconds and I'd say far less than 10.

hornist · Posted: Mon Jul 19, 2010 2:57 pm Post subject:

I had a go at doing a bit of benchmarking myself.

GO750 with Europe_2GB map.

First tests were running everything off the internal memory. Then I moved the map folder (only) from the internal memory to a fairly cheap 4GB Class 6 SD card (Transcend).

My test route was from my home in Antibes in the South of France to Utrecht in Holland (just somewhere that I had in my favourites that give a reasonably taxing route plan). I timed the TomTom up to the point where the motorway toll question appeared (i.e. it had planned an initial route involving toll motorways) then told it to avoid tolls and timed the replan.

Not hugely scientific tests, but I did run each one at least twice in order to check consistency.

Initial route - internal memory c. 1'32"
Initial route - storage card c. 1'52" (22% longer)
Replan no tolls - internal memory c. 1'56"
Replan no tolls - storage card c. 2'28" (27% longer)

I was disappointed in these results. I was hoping to use the memory card so that I could upgrade my maps and have the single Europe map. I can't be bothered with segmented maps, so with this speed degradation in using the card I don't think I'll bothering about upgrading my maps until I really have to.

DennisN · Posted: Mon Jul 19, 2010 4:28 pm Post subject:

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