TMC with Nuvi

trevf · Regular Visitor Joined: Jan 24, 2006 Posts: 174

Hi all,

I have just got a Nuvi 350 T and have a couple of questions about the traffic routing.

I seem to be one of the few people who gets a traffic signal so that's nopt a problem.

Questions are:

1 - How does the Nuvi route around traffic? I have just tried to route from a to b which would take me through 2 miles of stationary traffic (according to the traffic update on the Nuvi). The Suggested route was through the traffic although there is an alternate route that has no traffic at the moment which is not much further.

2 - If I am travelling down a road without a route and the Nuvi finds traffic on the road will it alert me?

Hope someone can help sorry if these are stupid questions, but not much is covered in the manual.

Many thanks.

Trev
_________________
Garmin i3
Firmware 3.4

PaulB2005 · Posted: Wed May 28, 2008 7:28 pm Post subject:

Well I've only used it once or twice and i think it'll avoid the traffic if you have Traffic set up in the Avoidances section. Also when new delays appear it'll ask if you wish to Avoid or Continue.

The most annoying thing is travelling from London to the Lake District it told me of 45 minutes delays but they were 200 miles away.... We did use the Avoid option and it took us off the motorway and through a town but stupidly i did this at school going home time! By the time we got back on the motorway we joined the back of another jam.....

philpugh · Posted: Fri May 30, 2008 10:23 pm Post subject: Re: TMC with Nuvi

trevf · Regular Visitor Joined: Jan 24, 2006 Posts: 174

Thanks for your replies. How will it make me know about the alternative routes and traffic on my current route. Do I have to go into the Menu and check the traffic (doesn't seem particularly safe)?

Sorry for all of the questions but so far I have not been able to test teh unit as I have been working locally for the last week and have not needed car.

Many thanks for your help.

Trev
_________________
Garmin i3
Firmware 3.4

PaulB2005 · Posted: Sat May 31, 2008 9:10 am Post subject:

It'll alter your route automatically in the same way missing a turn causes the unit to re-route. There will a symbol with a delay time on it such as .30 which means there are 30 minutes of delays on your route. Annoyingly to see details you have to touch the delay symbol to see a map of where the delays are. If you are doing a long route it'll warn you of delays regardless of how far away they are, and not when they are say 30 miles away...

Page 52 of the Nuvi 350 Owners Manual has some screen shots and symbols

trevf · Regular Visitor Joined: Jan 24, 2006 Posts: 174

Thanks for that Paul, makes a lot of sense with the manual, I guess that was missing from my box!!!

Have downloaded the PDF for reference. Many thanks again.

Trev
_________________
Garmin i3
Firmware 3.4

PaulB2005 · Posted: Sat May 31, 2008 12:48 pm Post subject:

trevf · Regular Visitor Joined: Jan 24, 2006 Posts: 174

Thanks to you as well Phil. Just used nuvi for the first time and noticed the following. 1 when using a route i was notified on the m3 of upcoming traffic on m25 but route did not change. I had to press the triangle then select avoid. I have traffic set in avoidances so i thought it would have re routed automatically. 2 there was no notification of how long the delay was or comparison of arrival time with and without diversion. 3 with route turned off on a3 i checked the traffic status screen and could see traffic about 9 miles ahead but there was no warning on the screen. The main reason i wanted a traffic satnav was to avoid traffic when commuting, and therefore not using a route so being warned m3 non routed traffic is critical to me. What am i doing wrong? Sorry about the dodgy formatting, but have had to do this from my phone. Thanks to all again. Trev
_________________
Garmin i3
Firmware 3.4

PaulB2005 · Posted: Sat May 31, 2008 2:50 pm Post subject:

trevf · Regular Visitor Joined: Jan 24, 2006 Posts: 174

There is nothing in the triangle at all. With the nonroute alert it would be nice to be told if there were any delays on the road at all so that a diversion could be used. Originally i was going to get a tom tom. Hope i have made the right choice.
_________________
Garmin i3
Firmware 3.4

PaulB2005 · Posted: Sat May 31, 2008 3:42 pm Post subject:

I thought you do get an alert, but then again as i said without a route calculated the unit doesn't know what roads you are going to take and therefore which ones to warn you about. If you pulled into the M3 right into stationary traffic the first chance it would have had to warn you would be on the slip road by which point it's too late.....

I think i need to have refresher with my TMC...

trevf · Regular Visitor Joined: Jan 24, 2006 Posts: 174

Thanks again Paul. I will have a bit more of a play as well.
_________________
Garmin i3
Firmware 3.4

gatorguy6996 · Posted: Sat May 31, 2008 9:19 pm Post subject:

If you have the device set to "fastest" and traffic is noted on your route, it will not offer to avoid it if there is no faster route even with the traffic delay. It will offer avoid if there's a 30 minute delay ahead and the detour route would only add 15 minutes, for instance.
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Garmin 1695 / 255 / 760 w/MSN - Droid w/Google nav + Navigon - Navigon 8100T - Dakota10 - GPSMap76C - GeoMate Jr.

trevf · Regular Visitor Joined: Jan 24, 2006 Posts: 174

Lester_Burnham · Frequent Visitor Joined: Oct 17, 2005 Posts: 618

My experience of it has been this - when calculating a route - if it has already received traffic information, it can factor it in to routing (assuming you have traffic selected in avoidances).

On the go, with already calculated routes, it warns you of delays, but then you have to tap on the avoid / re-route thing to accept or get it to calculate the alternative.

Least that's the way it works (when it works!) on my C510T.

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