Black Hole in TTN5

hgm · Occasional Visitor Joined: Oct 25, 2005 Posts: 50

I've now tried the Harwich to Congleton. That comes up with No Route Found for both shortest and fastest. That can't be a lack of memory when the Land's End to John O'Groats works. (V5.1, GB map)

Henry

hgm · Occasional Visitor Joined: Oct 25, 2005 Posts: 50

Stranger & stranger. Harwich to Congleton again.
I found that Avoid Motorways finds a route so decided to try Limited Speed. With a speed of 40 MPH it finds a route but incresing the speed to 45 MPH it gives No Route Found again.
TomTom must have a very funny algorithm for Limited Speed!

Henry

thekirbyfake · Posted: Tue Oct 25, 2005 5:21 pm Post subject:

MikeProcter · Posted: Tue Oct 25, 2005 6:35 pm Post subject:

Well, I'm using the fastest smartphone out there with the most amount of memory (yeh right) the PalmOne Treo 650. running ttn 5.12.

the Lands end to John O'Groats is 14 hrs 43 mins & 839 miles using fastest route. time to calculate acceptable

and for the shortest route, which takes forever to calculate, after 20mins I've given up waiting!.

I used to get the no route found problem lots with v4.1 on my Tungsten T3, but v4.4 for the most part stopped that.

I have only once so far found a no route planned with v 5 or 5.12.
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jguiver · Posted: Tue Oct 25, 2005 7:03 pm Post subject:

Robin2 · Posted: Tue Oct 25, 2005 8:16 pm Post subject:

I tried Harwich to Congleton, not specifying a road in either. The calculation only took a few seconds, but then it printed No route found.
Then I did the same thing, but choosing a road in Harwich (I chose A120 because it was the first on the list) and it took about the same time to do the calculation but produced a route (3.53 hours, 221 miles)
Robin
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Bazzer · Posted: Wed Oct 26, 2005 12:32 pm Post subject:

This is a strange one, and I've not encountered the problem myself.

However, I have just run some tests based on City Centre to City Centre. As DerekG's initial query was from Harwich Ferry Terminal (Parkeston), I started the routes from Parkeston (City Centre).

The routing was always by 'fastest' and the following destinations were randomly tried:-

Liverpool - No Route Found
Birmingham - No Route Found
Northampton - Found
Coventry - No Route Found
Bristol - Found
Felixstowe - Found
Norwich - No Route Found

I'm using a Mio168 with 27.4mb of free memory.

Looking at the map, the Norwich route is very straight forward, so it can't be a memory issue.

Has anyone queried this directly with TomTom?

Baz
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jguiver · Posted: Wed Oct 26, 2005 9:01 pm Post subject:

Starting from Harwich (City Centre), destination Diss - no route found.

Moving the destination back towards Harwich down the A140 eventually results in a route being found - about 2/3 of the way up from the A140/A14 junction towards Diss.

Similarly, if you move the start out of Harwich, using Diss as the destination, a route is eventually found.

I have been unable to pinpoint the exact criteria for failure, but suffice it to say that I ccorrupted my Great_Britain-Map.cfg file in the process - I may have exited TTN improperly. Would that do it?

I had to replace it with my backup copy.[/b]

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