Transport for London Digital Speed Map - TomTom & Garmin

Darren

Transport for London (TfL) have launched a digital speed map.

Available for download on TfL's website, the POI based map is available in Garmin & TomTom formats as well as KML and consists of a set of POIs covering the various enforced speed limits.

The files are an off-shoot from TfL's Intelligent Speed Adaptation (ISA) project exploring new technology in the fields of speed management. Any technology requires an accurate digital speed 'map' and hence the data has been captured for these purposes. The digital data will be made available to to anyone who wishes to create an application or indeed as here for personal use.

TfL claim, "The map has been collected from a 'drivers point of view' and records the physical location of speed limit signs on the road network. Both terminal and repeater signs have been collected, with attributes used for distinguishing sign direction for double-sided signs. Collection involves recording only the actual sign records, which are later used to derive the speed limit for road lengths in a vector digital map."

We haven't yet had an opportunity to test the POIs but if you want to have a go, they can be downloaded from TfL's website here.
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Darren Griffin

Darren · Posted: Fri Mar 27, 2009 6:53 pm Post subject:

Not a terribly encouraging start. Installed on a 720 and whilst the menu's appear, I cannot access the configuration screen. Pressing the Config Menu Button does nothing whatsoever!

The Start/Stop buttons trigger a Start/Stop message though.

Anyone else brave enough to test?
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Darren Griffin

G1LIW · Posted: Fri Mar 27, 2009 7:55 pm Post subject:

I heard about this a month or so ago, downloaded the POI file, and whaddya know, it doesn't work, my copy of TTNv6 couldn't even see the darn OV2s.

Tried it again today, wondering if they'd somehow fixed the problem... nope. Still cannot see the poi files in TomTom.

Hardly a surprise from a government-supported project, funded by public money.
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Roger, G1LIW
Google Pixel 3a XL Android Smartphone | SatNav Sygic for Android | Waze for Android | CamerAlert for Android | Blog http://rogersblant.blogspot.com/

Darren · Posted: Sat Mar 28, 2009 10:00 am Post subject:

The POIs work fine albeit they are of limited value as they are. They should work fine on your device too?
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Darren Griffin

PaulB2005 · Posted: Sat Mar 28, 2009 10:06 am Post subject:

I'll try these POIs later but on an SD Card. With Garmin you replicate the folder structure on the SD Card i.e. make the folder "POI" under the folder "Garmin" in the root of the card and put the GPI file into the POI folder...

Is this true for TT as well? I assume these go in the map folder like other POIs?

Darren · Posted: Sat Mar 28, 2009 10:20 am Post subject:

G1LIW · Posted: Sat Mar 28, 2009 11:23 am Post subject:

Don't think so, but I'll check, and get back to you here. Too tired now, just got home from a long night shift Sad

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Roger, G1LIW
Google Pixel 3a XL Android Smartphone | SatNav Sygic for Android | Waze for Android | CamerAlert for Android | Blog http://rogersblant.blogspot.com/

PaulB2005 · Posted: Sat Mar 28, 2009 12:17 pm Post subject:

Just loaded the POIs on a Garmin and now have lots of lovely grey dots everywhere - usually because there are over 256 categories but i only have 16 plus the PGPSW speed camera database. This POIs database only adds a handful more...

Looking at a demo route it seems like it would be a nightmare as the speed limits near me change from 20-30-20-30 more often than the weather changes. The screen would be littered with icons plus it creates loads of Alert:20 and Alert:30 alerts.....

rayle · Posted: Sat Mar 28, 2009 1:04 pm Post subject:

SpikeyMikey · Posted: Sat Mar 28, 2009 1:26 pm Post subject:

I've downloaded and configured the POI's for TTN6 and they show OK. I set warnings for 20 @200yds / 30 @300yds etc. This may not be the best setting.

As already mentioned I end up with a lot of alerts on certain routes, also the icons are a lower resolution version of the PGPSW ones for Gatsos, which is a bit confusing.

All in all I don't think I would use them due to the constant earache. Unless someone tells me they can be configured better.

G1LIW: Have you enabled the POI's and set the 'Warn when near' option?
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Mike
TT GO6000 (Europe); iPhone and iPad Pro with iOS TT GO & MyDrive + CamerAlert

G1LIW · Posted: Sat Mar 28, 2009 4:45 pm Post subject:

ok, few hours sleep has done wonders.

I've gone into my TTNv6 PDA and, after checking that they're not being used, purged all the POI files that aren't being used.

As you can see from the collected screen shots below, there are 106 POI categories in my copy of TTv6. Of these, 52 categories are active. I cannot figure out how, if it's even possible, to delete the "factory-fitted" POI categories, but even so, I decided to test a theory, and have found that it won't even pick up the "Public_Toilet_PGPSW.ov2" file either Evil or Very Mad

Anyone got any ideas on this one, cause I'm all out.

Here's the composite screen shot, shots in order from first menu top left, moving along left to right, row by row....

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Roger, G1LIW
Google Pixel 3a XL Android Smartphone | SatNav Sygic for Android | Waze for Android | CamerAlert for Android | Blog http://rogersblant.blogspot.com/

Darren · Posted: Sat Mar 28, 2009 4:54 pm Post subject:

Almost certainly too many custom POIs installed. Each device has a limit, not sure what it is on your ONE (and factory installed POIs don't count towards this).

You can test by uninstalling all the added POIs except our speedcams or else you'll need to re-configure alerts later.

Then add the Public Toilets POI or one of the tfL ones and test.
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Darren Griffin

G1LIW · Posted: Sat Mar 28, 2009 5:19 pm Post subject:

I was afraid this might be the case. OK, thanks. I'll get back to you later on this.
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Roger, G1LIW
Google Pixel 3a XL Android Smartphone | SatNav Sygic for Android | Waze for Android | CamerAlert for Android | Blog http://rogersblant.blogspot.com/

gazphone · Posted: Mon Mar 30, 2009 10:00 am Post subject:

Hi, This works on my 720 with navcore 8.070 Truck. I did give it a short road test this morning (in my car, Laughing Out Loud

) on the school run, I live outside the TFL area, the only thing that that flashed was 'NO SPEED LIMIT DATA AVAILABLE' when this flashed the tomtom human cutout. I am going to london this afternoon so will be able to give it a good road test.

As the logs are saved with information of your driving will this be exchanged to TFL with any updates?

gazphone · Posted: Tue Mar 31, 2009 9:59 am Post subject:

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