N9 Maps : Bad routing algorithms
 

The destination was 500 meters and 2 turns away. No one ways in that route. Why Drive wants to drive me all over beats me... Is this just a unique 'happening'?

Has anyone else experienced this?

I've installed mapsi, but no other mods or non store apps(including N9QT)http://img7.imageshack.us/img7/1976/20121102150639.png

Re: N9 Maps : Bad routing algorithms
 

Mine does that, too! Unfortunately it's not a problem with N9. It's a problem with Nokia. If you go to website of nokia maps, it will direct you the same way as N9 does.

Re: N9 Maps : Bad routing algorithms
 

Both probably use the same routing database that has faulty data for this area.

Re: N9 Maps : Bad routing algorithms
 

The directions of the traffic flow can be set while creating maps, so the roads leading "straight" to that destination may be marked in the opposite direction. That's why Nokia Maps is showing you a route through the correct way and ignoring opposite directions.

Alternatively, maybe it's showing a wrong route for countries with right-handed drive. It shouldn't happen, but it can also be a reason.

However, I'm guessing some narrow and cluttered roads in your city which are used as two-way in practice are marked as one-way in the maps app, and hence the weird route.

Re: N9 Maps : Bad routing algorithms
 

*Edited. Wrong thread. Sorry.*

Re: N9 Maps : Bad routing algorithms
 

Our country follows left hand drive though. Its quite possible that there are isses with the database because this happens frequently at this very spot.

The oddity is that maps brought me to this spot before going crazy.

Another thing to mention here is that at the point where its forming a loop, there's a legal right... Really strange for it to form that loop :confused:

Re: N9 Maps : Bad routing algorithms
 

Nothing beats a tomtom.

But yeah N9 routing is crap.

Re: N9 Maps : Bad routing algorithms
 

Lumia 800 is superb. Not sure what happened to N9

Re: N9 Maps : Bad routing algorithms
 

Don't be silly now Lumiaman, the Lumia is just as bad when it comes to routing as ALL the other Nokias using Nokia Maps.

The application is great, but the routing algorithm has always been crap, it's something I've moaned to Nokia directly through feedback, and to Nokia Beta Labs about for years.

Sadly not many people seem to notice this issue and Nokia Maps is constantly praised for being up there with the best navigation apps, so I doubt Nokia will ever pay it much attention.

I still use my Nokia E7 with Sygic GPS for my sat nav duties, the routing is a million miles better than Nokia Maps that just picks some ridiculous routes at times. Even on my new Nokia 808 it's still just as bad as always.

Nokia Maps gets you from A to B, just don't expect the optimum route.

Re: N9 Maps : Bad routing algorithms
 

there is a reason Nokia is not at the top of the world, it still shows that there is a Round Table Pizza by my housw that closed like 4 years ago.

Ya you have no idea how many times i have wrote Nokia feedback.

Re: N9 Maps : Bad routing algorithms
 

This is still alright on a small scale routong within the city, but I think I'm not gonne rely on maps if I want a long distance routing... I'm aure it'll take me all over the country if I do :(

Re: N9 Maps : Bad routing algorithms
 

I tried your route in maps.nokia.com and it seems there that the routing is correct. Maybe maps/parameters are not the same.

So next time, avoid using offline maps, better connect to the internet to have accurate routing :D. I'm joking off course!

Are you sure to have the latest maps? Did you check your parameters? Just asking...

Re: N9 Maps : Bad routing algorithms
 

Sorry to tell you, but you wrong.

Re: N9 Maps : Bad routing algorithms
 

i dunno what you guys talkin' about. Everything is fine at my side, even living in the(2nd/3rd) smallest country of the world.. all the routes are regularly updated and and routing is also perfect. with the re-routing thing getting in action if you change route i think its perfect. Well atleast for me.

Re: N9 Maps : Bad routing algorithms
 

I have used nokia maps/routing in quite a few european countries (finland, sweden, denmark, norway, estonia, poland, hungary, austria, germany, france, british isles, italy, slovenia, switzerland, slovakia, czechs) and some places in china, and it has never failed me. Granted, in some big cities the routes can be a bit roundabout but never far off from the optimal route. And outside cities, the routing is always optimal.

--------- edit --------

Forgot to mention, devices that I have used it on are 5230, E90, C6, E7, N9.
On all the devices it has performed equally well even as the UI is different.

Re: N9 Maps : Bad routing algorithms
 

@Jordi Thats the problem, it routes me well most of the time, but it goes haywire sometimes like completely nutsy...

@Lumiaman I don't have a Lumia, neither do I plan to buy it... Ever.

Re: N9 Maps : Bad routing algorithms
 

happened to me a couple of times, but i think it was due to the map mods for lighting/traffic

Re: N9 Maps : Bad routing algorithms
 

happened to me with both N9 and Lumia 900

Re: N9 Maps : Bad routing algorithms
 

so..your Drive is in offline mode or online mode?

Re: N9 Maps : Bad routing algorithms
 

His head is in offline mode :p

Re: N9 Maps : Bad routing algorithms
 

Come on, even with your rose tinted Lumia glasses even you surely don't think the routing algorithm would be different on Lumia nokia maps than an up to date N9 or 808?

A friend of mine has a Lumia so asked him to test a route for me I know Nokia Maps picks poorly, sure enough, same shocking route as Nokia Maps on the E7, N9 and 808 choose....

Here is Sygic choosing the correct route, same as google maps and TomTom would pick...

http://i92.photobucket.com/albums/l1...1-05-01020.jpg

And Nokia maps(on Lumia) with it's added 20+ minutes detour...

http://i92.photobucket.com/albums/l1...11-05-0100.jpg

Sadly this type of extended routing is commonplace with Nokia Maps. I'm a fan of the interface, and the live traffic updates on the Symbian version are really useful, but the poor routing means I have to stick with my old E7 with Sygic GPS for my sat nav duties. Only reason I still have two phones instead of just the 808.

Re: N9 Maps : Bad routing algorithms
 

Do you mean that the same routing is sometimes done correctly and sometimes not? Or that sometimes the route is non-optimal for some arbitrary route? If the first one, then it sounds like a bug in the routing algorithms. If the latter, it sounds like faulty or missing data in the database.

Re: N9 Maps : Bad routing algorithms
 

Always online. Data gallore. N9 sucks big time. Lumia 800...beautiful

Re: N9 Maps : Bad routing algorithms
 

Just done a quick test (not scientific or rigorous), using N900. The route produced by Bing is identical to the "optimised" route found by Ovi/Nokia maps, which isn't actually that optimised at all. On the other hand, Google directions are both quite different and more useful. Interesting.

Re: N9 Maps : Bad routing algorithms
 

So does that lead to the conclusion that Bing uses Nokia Maps database and routing algorithms?

Re: N9 Maps : Bad routing algorithms
 

If they are in online mode both devices use same database and same routing algorithms. I find it odd that one would be beautiful and other would suck :D

Re: N9 Maps : Bad routing algorithms
 

I agree with Tetlee on Sygic being better at times...

On my SGS2 Sygic at times comes up with a better route than Nokia Drive on my n9...Both use Navteq's maps but its the algorithms that Nokia uses that somehow are poorer...The situation is better since the past 4 months; previously Nokia Drive would make my 5 minute journey via the "small roads" a long 15mins one using main roads...