ITIS Traffic Information

Shinymera · Regular Visitor Joined: Oct 30, 2006 Posts: 82

iTIS website has this map;

http://www.itisholdings.com/itmc2.asp#

Which leads me to ask the question 'How can they miss a 4 mile tail back that lasts for two days every week?'

swing · Posted: Thu Jun 07, 2007 5:00 pm Post subject:

I'd be grateful if Jonathan or Danny could confirm what that map shows. As best I know, it shows the Classic FM coverage across the country - ie it shows where you can get the TMC signal.

What would be interesting it to also know whether iTIS have a map of which roads are and aren't covered by their network (I know their network does not work like Trafficmaster, but given the way the TMC location data table works, iTIS must have a map showing which roads it's possible for them to report on...) Of course, clarification as to whether the coverage map road network is the roads they can report on would be good...
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GPS_fan · Posted: Thu Jun 07, 2007 9:09 pm Post subject:

swing · Posted: Thu Jun 07, 2007 9:27 pm Post subject:

GPS_fan · Posted: Fri Jun 08, 2007 8:07 am Post subject:

Shinymera · Regular Visitor Joined: Oct 30, 2006 Posts: 82

GPS_fan · Posted: Fri Jun 08, 2007 9:53 am Post subject:

This is why I carry a Trafficmaster Freeway in the car and listen to radio traffic bulletins as well as using the TMC facility on my GPS.

Belt and braces approach - but it's still not foolproof
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swing · Posted: Fri Jun 08, 2007 10:33 am Post subject:

perussell · Frequent Visitor Joined: May 12, 2006 Posts: 292

Maybe I am missing something here but for the ITIS system to work I think there needs to be a vehicle with the ITIS transmitter in it to send a signal to the network saying that the vehicle is being delayed i.e. if there are no vehicles in the jam with ITIS transmitters then there is no way that the system knows there is a hold up.
At least with the Trafficmaster system, restricted as it may be to major roads, the cameras are always there i.e. they should never fail to see a queue (except perhaps in fog :D .

Earlier this week I was delayed Eastbound on the M4 between J10 and J7 due an accident. The Freeway knew all about it and at least I knew how long the delay was, but the Mio SatNav seemed to be totally unaware of this reporting on roadworks etc at Reading through which I had sailed at a steady 50 mph. I find it hard to believe that there would have been no ITIS transmitting vehicles in this jam

GPS_fan · Posted: Fri Jun 08, 2007 12:34 pm Post subject:

Clearly, neither service provider has a perfect system.

At least iTIS are participating in this forum and trying to answer members' questions. However, despite expressing an interest in the forum (in a personal e-mail), Trafficmaster have neglected to put in an appearance.

Having used a Trafficmaster Freeway since they were first introduced, my allegiance had been with Trafficmaster because they are 'the devil I know'. However, iTIS are the ones showing an interest in their end-users.

With the limited amount of information available, I have simply expressed an opinion and I'm now going to leave it for representatives of the respective companies to provide the facts.
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GPS_fan · Posted: Sat Jun 09, 2007 7:31 am Post subject:

perussell,

One more thought - are you sure that you had TMC reception?

The Trafficmaster Freeway picks up its signal from roadside transmitters, so there should be no problem at all.

However, TMC (both iTIS and Trafficmaster) are reliant upon reception of certain FM RDS signals - with iTIS this is transmitted with Classic FM (with a few more stations coming on board later in the year according to previous posts by iTIS) and with Trafficmaster this is transmitted using a number of radio stations.

Obviously, if you're in an area where you can't receive the required TMC signal, then TMC on your Mio will neither be able to warn you of a problem nor re-route you around it.

It may be worth you driving with the "TMC Control Centre" screen showing so that this will at least show whether "TMC present" or "No TMC" is displayed on this screen. This way, it might give you a better idea of whether your problem is poor reception or your Mio no processing the data correctly.

Also, have you set your C520t to "Use traffic information" and 'Re-calculate route to avoid traffic' to "Automatic"?

See page 59 of the online user manual:
http://www.mio-tech.be/Manuals/C520/MioMapV3-Manual/UserManual_for_MioMap_v3.3_C520_EN.pdf
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perussell · Frequent Visitor Joined: May 12, 2006 Posts: 292

No I haven't driven with the TMC centre 'open' so I can't say for sure when I have and have not been receiving signals. However if I touch the trainglar icon in the bottom right screen I am seeing a list of traffic issues though these are almost exclusively roadworks etc. I haven't seen any notifications of traffic jams as such, only road works.

If I sit on my driveway (about 4 miles from M4) and open the TMC screen I can see various wavelengths selected and the phrase 'testing' appears along with a signal sensor showing something so I assume I am receiving a signal of sorts.

I seemed to receive TMC on my Nuvi with no problems driving the same routes

yes, Mio is set to receive TMC but I have set it for a 'manual replan' so I would expect the unit to reroute but only after asking me first

swing · Posted: Sat Jun 09, 2007 4:31 pm Post subject:

kentnicklloyd · Posted: Mon Jun 11, 2007 12:09 am Post subject: Re: ITIS Traffic Information

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