Home PageFacebookRSS News Feed
PocketGPS
Web
Read the current newsletter! Weekly
Newsletter
SatNav,GPS,Navigation
Pocket GPS World - SatNavs | GPS | Speed Cameras: Forums

Pocket GPS World :: View topic - U-turns?
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log in for private messagesLog in for private messages   Log inLog in 

U-turns?

 
Post new topic   Reply to topic    Pocket GPS World Forum Index -> NavNGo iGO
View previous topic :: View next topic  
Author Message
ansalmo
Occasional Visitor


Joined: Aug 13, 2006
Posts: 8

PostPosted: Fri Aug 18, 2006 2:09 pm    Post subject: U-turns? Reply with quote

A question about the iGo software (though the version running on the Mio C710, if that makes any difference)....

I've unchecked "u-turns" as a preference in my routing options, but the software still keeps trying to make me take them when attempting to recalculate a route. As an example, I decided to stray off-route on one journey and was told to take a right turn at the point where a dual carriageway turned back into a single carriageway. There was no official turning point here, so that looks like a U-turn to me. I've also been asked to turn left off-route, then essentially double-back on myself and retrace my route - again this appears to be a U-turn to me.

I've tried all types of route calculation (including the hidden "easy" one) and they all seem to use U-turns in their recalculation despite me unchecking that in the preferences. Anyone know why, or know how to tell it to really, really not do U-turns? Confused

I have noticed that the route recalculation seems to be desparate to get me back on the original route, rather than making a new one and letting me continue onwards. This is the opposite impression to that I had with my previous Garmin C310, which always seemed to keep the flow of the journey going.
Back to top
View user's profile Send private message
linknet
Frequent Visitor


Joined: May 05, 2005
Posts: 872

PostPosted: Fri Aug 18, 2006 2:35 pm    Post subject: Re: U-turns? Reply with quote

ansalmo wrote:
A question about the iGo software (though the version running on the Mio C710, if that makes any difference)....

I've unchecked "u-turns" as a preference in my routing options, but the software still keeps trying to make me take them when attempting to recalculate a route. As an example, I decided to stray off-route on one journey and was told to take a right turn at the point where a dual carriageway turned back into a single carriageway. There was no official turning point here, so that looks like a U-turn to me. I've also been asked to turn left off-route, then essentially double-back on myself and retrace my route - again this appears to be a U-turn to me.

I've tried all types of route calculation (including the hidden "easy" one) and they all seem to use U-turns in their recalculation despite me unchecking that in the preferences. Anyone know why, or know how to tell it to really, really not do U-turns? Confused

I believe what they mean by a u-turn is a three point turn in a single carriageway road.

If you look in section 5.4.4.4 iof the iGO help file or section 6.3.3.4 of the MioMap help file it states:
Turning back on dual carriageways is not considered as a u-turn.

Regards

Roger
Back to top
View user's profile Send private message
ansalmo
Occasional Visitor


Joined: Aug 13, 2006
Posts: 8

PostPosted: Fri Aug 18, 2006 10:13 pm    Post subject: Re: U-turns? Reply with quote

linknet wrote:
If you look in section 5.4.4.4 iof the iGO help file or section 6.3.3.4 of the MioMap help file it states:
Turning back on dual carriageways is not considered as a u-turn.


I had read that, but had assumed it was talking about leaving a dual carriageway on a sliproad, taking the underpass/overpass, and then rejoining on the opposite slip.

It's rather disappointing, as (probably psychologically) I prefer to keep making forward progress and have the route recalculated ahead of me, rather than effectively having to stop and double-back on myself. Sad
Back to top
View user's profile Send private message
ansalmo
Occasional Visitor


Joined: Aug 13, 2006
Posts: 8

PostPosted: Fri Aug 18, 2006 10:16 pm    Post subject: Reply with quote

Oh, and forgot to mention - the left turn I referred to in my original post was down some crusty little side road where I would probably have to have made a 3-point turn to get back out. Definitely a U-turn.
Back to top
View user's profile Send private message
M8TJT
The Other Tired Old Man
The Other Tired Old Man


Joined: Apr 04, 2006
Posts: 10118
Location: Bexhill, South Sussex, UK

PostPosted: Sat Apr 28, 2007 8:53 am    Post subject: Reply with quote

I had the opposite problem with U turns in so far as it would always recalculate a new route rather than give a U turn, even though I had U Turns selected.
The problem I had was fixed by changuing the U Turn penalty setting from 1700 yards (almost a mile) to to 500 yards. It seems that the U Turn penalty, is telling the software how far extra you would travel to avoid a U Turn (This is with the MIOMAP 3.2) version of Igo. The setting is in 'Route Options'. To avoid U Turns, try increasing this setting.
Even with U Turns selected, the software will eventually give up trying to make you U Turn, (provided that you are going in more or less the right direction) when the 'new' route is shorter that the 'old' route.
Back to top
View user's profile Send private message







Posted: Today    Post subject: Pocket GPS Advertising

Back to top
Display posts from previous:   
Post new topic   Reply to topic    Pocket GPS World Forum Index -> NavNGo iGO All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB 2.0.11 © 2001 phpBB Group
phpBB port v2.1 based on Tom Nitzschner's phpbb2.0.6 upgraded to phpBB 2.0.4 standalone was developed and tested by:
ArtificialIntel, ChatServ, mikem,
sixonetonoffun and Paul Laudanski (aka Zhen-Xjell).

Version 2.1 by Nuke Cops 2003 http://www.nukecops.com

Make a Donation



CamerAlert Database

Click here for the PocketGPSWorld.com Speed Camera Database

Download Speed Camera Database
19.121 (01 Dec 21)



WORLDWIDE SPEED CAMERA SPOTTERS WANTED!

Click here to submit camera positions to the PocketGPSWorld.com Speed Camera Database


12mth Subscriber memberships awarded every week for verified new camera reports!

Submit Speed Camera Locations Now


CamerAlert Apps



iOS QR Code






Android QR Code







Terms & Privacy


GPS Shopping