IQ Routes and traffic module

D4VE · Posted: Fri Oct 03, 2008 6:13 pm Post subject: IQ Routes and traffic module

Since the return of my module i have been enjoying the benefits of seemingly good coverage and traffic info with varying delay times, just as it should be. I will point out that i dont rely on the traffic info but use it as a guide with backup with normal radio traffic reports, and so far it has worked very well for me.

But i did notice one thing on a few occassions now, and i wondered if anyone else has noticed this or indeed has an answer as to why it happens.

I set a route with IQ Routes enabled, i then get the destination arrival time as normal, but then traffic indicates an "X" mins delay and i ask to avoid said delay, after recalulating i then get the new route with anything from 10-20 mins duration shorter than the original calculation. I always use the fastest route calculation BTW.

Any ideas guys?
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iPhone4 IOS 4.3.3
TomTom Western Europe v865.3252
App 8.300 V1.6 (670441)
TomTom iPhone Car Kit

PC Operating System: Windows 7

Wishlist · Lifetime Member Joined: Mar 10, 2005 Posts: 160

You are asking why when you ask it to avoid the delays the arrival time is reduced?

D4VE · Posted: Fri Oct 03, 2008 6:35 pm Post subject:

Yes, and i see where your coming from, but the reduced time is faster than the original time calculated before taking the traffic delays into account. There is a delay from the original calculation made and the traffic update arriving, there by increasing the total journey time. I hope that makes a bit more sense as i didnt explain that in the OP.

Dave
_________________
iPhone4 IOS 4.3.3
TomTom Western Europe v865.3252
App 8.300 V1.6 (670441)
TomTom iPhone Car Kit

PC Operating System: Windows 7

Wishlist · Lifetime Member Joined: Mar 10, 2005 Posts: 160

D4VE · Posted: Fri Oct 03, 2008 6:49 pm Post subject:

I can be a sarcastic git too... Laughing Out Loud

No, the module is connected all the time, but there is a delay before traffic info is updated for the current route i am on, it then flashes up the delay and adds to the original calc, then i avoid and get a quicker time than before the traffic delay info, if that makes any more sense... Laughing Out Loud

_________________
iPhone4 IOS 4.3.3
TomTom Western Europe v865.3252
App 8.300 V1.6 (670441)
TomTom iPhone Car Kit

PC Operating System: Windows 7

rgw2012 · Occasional Visitor Joined: Sep 03, 2008 Posts: 4

Dave - wouldn't this be due to the fact that by the time you are asking the device to re-route, because it has alerted you to a traffic delay, you have already travelled some distance since the original route was calculated? Therefore your recalculated route only has to get you from your current location (not your original starting point) which is less distance to your destination, hence less time for the remaining journey.

Just a thought
Cheers
Rick

pcaouolte · Posted: Sat Oct 04, 2008 8:05 am Post subject:

The tomtom keeps the last set of traffic data that it managed to download in a file on the device. It seems to use this data for a long time (I don't know how long) even after the device has been powered down. It may be that this data is being used in your original route calculation and then updated with more recent data containing shorter delays when the traffic info is updated.
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Paul

D4VE · Posted: Sat Oct 04, 2008 10:38 am Post subject:

RGW- Fair point, but a lot of my driving is in london, so not much distance travelled and besides i mostly sort calculations before i move off.

pcaouolte- If thats the case then i reakon you have solved it me old cock sparrah.. Laughing Out Loud

Thanks for the replies guys.

Dave
_________________
iPhone4 IOS 4.3.3
TomTom Western Europe v865.3252
App 8.300 V1.6 (670441)
TomTom iPhone Car Kit

PC Operating System: Windows 7

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