1005 HD Traffic USELESS (and now older models too!)

AndyVaughan · Posted: Sat Jul 23, 2011 9:29 pm Post subject:

Actually, thinking about the above, why should we need to select.

If your journey is only 10 miles, you need 10 miles of traffic data plus a little more in case you have to divert.

If your journey is 100 miles, you need 100 miles plus a bit extra for diversions.

If it is 200 miles, this is where it is still open to debate - do you need to know the traffic situation at your destination when you set off? Probably not, apart from major delays which may be a serious accident, road closure etc.

So, the device should be intelligent enough to do it for you, but I think all delays classed as major should always be downloaded and retained regardless.

Now, how do we define a major incident ?????

DennisN · Posted: Sat Jul 23, 2011 11:04 pm Post subject:

Don't try for that - defining a major incident would stress the poor device to bits. Remember, it's a computer, it's not intelligent, it's more stupid than me. Tell it to jump off a cliff and it'll do it. A major defined as 30 minutes wouldn't pick up 29 minutes. Simply download all traffic to the destination in a band as wide as 2/3rd of the overall distance (1/3rd each side of the track). 100 mile trip gives 100 miles length, 60 miles wide to see alternates. Bristol to Leeds, approx 200 miles long, 120 miles wide can see alternates via M42/M1 or M6/M62.
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Dennis

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nwatson · Occasional Visitor Joined: Sep 10, 2006 Posts: 13

If the devices are already downloading all the traffic data, then bandwidth/data costs are not an issue. Likewise the quantity is also not an issue as traffic downloads are pretty quick.
The only issue would be applying all the relevant traffic data to your route, which will take longer for a longer trip, having the option to select traffic range would give you the ability to either get going ASAP with local traffic issues accounted for, or wait a little longer for route planning to account for all current issues. Note that the recent 1000 series devices will probably not show much of a delay in any case.

AndyVaughan · Posted: Sun Jul 24, 2011 10:26 am Post subject:

The only issue with taking all incidents in to consideration is th enumber of route recalculations the device is likely to have to perform.

Not an issue for the newer 1000 series devices, but the XLLIVE takes minutes to calculate a really long route with Nav9. It is quicker with Nav8, but not by much. Most of this is due to the displaying of Fuel Prices and TT Safety Cams on route (I know, I keep forgetting to remove them!).

DennisN · Posted: Sun Jul 24, 2011 10:30 pm Post subject:

Here's a new (to me, anyway) thought. This has got to be Navcore based. So how about somebody finding a Navcore from January? to reinstall and see if the traffic reverts to whole route? It happened sometime about January/February didn't it (we were talking about it then)?

What are the dates and versions of Navcore since about October last year and how can we try them?
_________________
Dennis

If it tastes good - it's fattening.

Two of them are obesiting!!

mikealder · Posted: Mon Jul 25, 2011 8:21 am Post subject:

In the case of the x40, x50 and XL IQ (all live models) the Navcore hasn't changed since last year so I very much doubt this is something on the device.
TomTom have explained why the change was introduced and when, all we need to do is wait and see what, if anything they are going to do about it - Mike

DennisN · Posted: Mon Jul 25, 2011 9:23 am Post subject:

So how are the implementing it on the device? We have commented that all the data is downloaded to the device, then degraded. Are they able to control the device via the SIM? Is the data downloaded a la James Bond "This message will self-destruct in 5 seconds"?
_________________
Dennis

If it tastes good - it's fattening.

Two of them are obesiting!!

AndyVaughan · Posted: Mon Jul 25, 2011 9:25 am Post subject:

It isn't Navcore based, I rolled back to 8.419 which is one release after what my XL LIVE came supplied with and the behavious is the same.

What is interesting is that TT are obviously putting some 'flag' on incidents more than 50 miles away so that they are discarded. This feature to do this had to have already been in the Navcore, so this means the devices were doing this before, but the range was further.

This is a server side change, so dicussions around having a variable setting in the Navcore are maybe heading down the wrong track - the flag needs to be set on the incident before it is downloaded to the device??

IanS100 · Posted: Mon Jul 25, 2011 9:58 am Post subject:

But surely the Navcore must still read & apply the flag so a change to the Navcore would modify the way the flag is being implemented, maybe with a On/Off option

falkirk81 · Posted: Mon Jul 25, 2011 10:15 am Post subject:

Unless the code is written into the traffic download, to discard anything over 50 miles from the current location. In that case, all LIVE navcores could have had that function built in, just never used until now!

A bit like a remote kill switch, if the switch is activated then the range is limited to the distance given in the traffic download!

Steven
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Tomtom GO 1005 LIVE

iPhone 12

MRCC · Regular Visitor Joined: Apr 06, 2008 Posts: 82

I have noticed that on my 540 it only appears to download the 50 mile radius info when i have a GPS lock. With no GPS lock then it downloads about 120-130 mile radius (shows on the map for a second) before throwing away everthing outside the 50 mile radius. In the latter case it seems to use the last known position as the centre point for the download info.

So it appears that with a GPS lock then the PNDs will be downloading less from the TT server.

AndyVaughan · Posted: Mon Jul 25, 2011 4:09 pm Post subject:

MRCC · Regular Visitor Joined: Apr 06, 2008 Posts: 82

AndyVaughan · Posted: Mon Jul 25, 2011 9:39 pm Post subject:

Weird - I thought others had reported the behavior the same as my XL LIVE, maybe there are some subtle differences between devices. Is this from power on? What Navcore version are you running? Only asking out of interest.

MRCC · Regular Visitor Joined: Apr 06, 2008 Posts: 82

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