Can the road be edited in Mapsource?

 

Hi, there is a traffic junction which Garmin GPS will not allow me to make left turn. Instead it routes to another junction for U turn. Is it possible to make left turn possible in Mapsource? If yes, how?

Thanks,
smile

How does the gps stop you from making a left turn?

mercurius wrote:

Hi, there is a traffic junction which Garmin GPS will not allow me to make left turn. Instead it routes to another junction for U turn. Is it possible to make left turn possible in Mapsource? If yes, how?

Thanks,
smile

You are driving... Make the left turn and it will recalculate.... shock

Edit And no you can't change the road... sad

--
It is terrible to speak well and be wrong. -Sophocles snɥɔnıɥdoɐ aka ʎɹɐƃ

Double check your avoidances

Double check your avoidances to see if anything in your avoidances is causing it to prevent you from turning left on that intersection.

--
http://www.poi-factory.com/node/21626 - red light cameras do not work

The only avoidances checked

The only avoidances checked are U-turn, unpaved roads and Traffic. I just wonder if I can correct that in mapsource.

Unfortunately you can't change that...

sad

Edit: I am wondering why it thinks you can't make a left turn???

--
It is terrible to speak well and be wrong. -Sophocles snɥɔnıɥdoɐ aka ʎɹɐƃ

The intersection you want to

The intersection you want to turn left on.Are you sure it is included in the maps?Can you zoom in on the area and see that it is possible to make a left turn there? Could it be that the city added a left turn lane there that was once a solid barrier and has not made the map update yet.

--
Charlie. Nuvi 265 WT and Nuvi 2597 LMT. MapFactor Navigator - Offline Maps & GPS.

It's probably that way on the map

aophiuchus wrote:

sad

Edit: I am wondering why it thinks you can't make a left turn???

I have had a couple routing instructions like turn right onto a side street, go 2 blocks, turn left (parallel to my original street) go 2 blocks and then turn left again, when where I wanted to go was just continue 2 blocks and turn left. Sure enough, when I ignored what I thought was stupid and got up to the intersection, it was posted "No left turn".

I also had one intersection in town that used to end in a T and they later extended it to to be a full 4-way intersection. Even though it showed as a 4-way intersection on the map, it would route around that extension with a right turn, U-turn, and another right turn. Zooming way in revealed that the extension was not properly "joined" to the original road. They updated it on the 2009 maps and all was well again.

I'm sure he is just dealing with incomplete or outdated map info.

This is possible although..

johnc wrote:
aophiuchus wrote:

sad

Edit: I am wondering why it thinks you can't make a left turn???

I'm sure he is just dealing with incomplete or outdated map info.

In the past I checked a route that I travel just out of curiosity. I assumed I was at the Disney Concert hall in downtown Los Angeles, at 1st St & Grand Ave, I set my destination for MOCA, a block and a half down Grand Ave, which is a two way street and allows U turns at 3rd street. Bottom line, you can drive two blocks down the street and make a u-turn and you are there. If you didn't want to make a u-turn at 3rd street you could turn left on 2nd, left on Hope St, left on 3rd and left on Grand Ave and you would be there. The gps sends you down Grand ave, left on 2nd St, left on Hope St, left on Hope Pl (2 blocks past 3rd, left to Grand Ave, etc... So it sends you 4 blocks out of the way... I don't know why it chooses this route because all of the streets, street directions, etc. i.e one way streets have been the same for at least 20 years and probably much longer. Just a routing peculiarity of the Garmin.... rolleyes

--
It is terrible to speak well and be wrong. -Sophocles snɥɔnıɥdoɐ aka ʎɹɐƃ

Similar problems

On many occasions I have had similar problems. I believe it has to do with the overlays not laying properly for the software to detect an actual intersection even though we see it existing. Not exactly what we expect or pay for.

I have an older version of MapSource updated but the actual maps are still the original version and it routes correctly provided that the road exists on this version. (This version was for the Garmins where you had to download individual map-sets due to limited memory on the older Garmins.

--
Looking for a place to go this summer? Try Oshkosh, WI, July 20-26, 2015. The largest gathering of aircraft in the world. http://www.airventure.org/index.html

The same here...

I have a Nuvi 760 since Christmas and similar problems in places where I know it has been no changes on the road for years. I miss my TomTom.

Lee

blame the map maker

lemaneu wrote:

I have a Nuvi 760 since Christmas and similar problems in places where I know it has been no changes on the road for years. I miss my TomTom.

Lee

Blame it on the map maker, not the device maker.

I recently got a TomTom. While I love it, it took me on a wild goose chase to the airport. Instead of the quick and efficient entry to the airport, it routed me 2 extra miles around the airport to go through an entrance on the other side of the airport.

Just gotta recognize every GPS / map maker has its deficiencies, and learn to live with them.

--
http://www.poi-factory.com/node/21626 - red light cameras do not work

Thats not right

nuvic320 wrote:
lemaneu wrote:

I have a Nuvi 760 since Christmas and similar problems in places where I know it has been no changes on the road for years. I miss my TomTom.

Lee

Blame it on the map maker, not the device maker.

I recently got a TomTom. While I love it, it took me on a wild goose chase to the airport. Instead of the quick and efficient entry to the airport, it routed me 2 extra miles around the airport to go through an entrance on the other side of the airport.

Just gotta recognize every GPS / map maker has its deficiencies, and learn to live with them.

You shold read this before making such a broad statement:

www.easts.info/on-line/journal_06/2561.pdf

--
Using Android Based GPS.The above post and my sig reflects my own opinions, expressed for the purpose of informing or inspiring, not commanding. Naturally, you are free to reject or embrace whatever you read.

Thats not right

nuvic320 wrote:
lemaneu wrote:

I have a Nuvi 760 since Christmas and similar problems in places where I know it has been no changes on the road for years. I miss my TomTom.

Lee

Blame it on the map maker, not the device maker.

I recently got a TomTom. While I love it, it took me on a wild goose chase to the airport. Instead of the quick and efficient entry to the airport, it routed me 2 extra miles around the airport to go through an entrance on the other side of the airport.

Just gotta recognize every GPS / map maker has its deficiencies, and learn to live with them.

You shold read this before making such a broad statement:

www.easts.info/on-line/journal_06/2561.pdf

The receivers maps share in the problem.

--
Using Android Based GPS.The above post and my sig reflects my own opinions, expressed for the purpose of informing or inspiring, not commanding. Naturally, you are free to reject or embrace whatever you read.

The map was updated to

The map was updated to CNNANT2009.11 and still have the same issue at the junction. Sure enough I can make left turn and it will recalculate. But what if I'm in a new area/city? It just doesn't give me the confidence to trust the direction anymore.

I had MIO C220 before "upgraded" to Garmin, and it didn't have the same issue as Garmin on that particular junction. Overall, the garmin map is way better but still have minor glitches which I thought I could correct it in Mapsource.

,

I have the same issue on the street where I work. No matter which I come from, I would be routed to the next road or if I was on the road already, I would be told to take a right at the intersection then a left instead of going straight.

Come to find out when trying to do a route on mapquest, I found that they show the stretch of road being gated which is causing the unit to make me go around the block.

--
Garmin SP 2730 and Nuvi 760

Lots of places

Lots of places where there is a center median the map doesn't identify that there is a cut that allows you to cross it. I see this surprisingly often.

Just another case where you have to actually tune in your brain rather than blindly following the GPS.

--
Rick - Nüvi 260 - eTrex Summit HC

Report it to Garmin

I have seen the same problem on a street where there has always been a left turn lane with a lead arrow, for over 10 years. Navteq is the supplier of the map data, Garmin just makes the unit. You can report it to Garmin here, Give as much detail as possible in the report, such as direction (driving north on E 8 ave, turning west on E 9 st), city, state, and GPS coordinates if possible:
http://www8.garmin.com/cartography/mapSource/errorForm.jsp

I got this response from them:

Thanks for the message. It looks like there is a bad turn restriction
in the raw data causing that. We will pass the info along to our
vendors to try to get that changed (by the way, we have a newer version
out there now--2009.10--and it still does this same thing).

I will forward your error report on to our data vendor, Navteq, who handles the classification and attribution of the roads and POI’s that we use in our products. I will also forward this on to our Automotive Cartography team for them to look over as well. Perhaps this will help to expedite the fix. Once your error report has been reviewed and corrected, the change will appear in a future Garmin map update. Thank you for taking the time to report these errors.

On another note, I have very seldomly been left "lost" using any GPS. When you use the GPS in the area you live in, or are very familiar with, it will sometimes try to route you a way that you know is a more difficult route, be it traffic, or construction, etc. But if you are in an unfamiliar area and it were to not let you make a left and instead have you turn on a previous street, etc, you would still end up at your destination. It may have been a little out of the way, but it is better than using a paper map any day!