Navigation Quirks

[italiabrain]

The databases do not contain continuous house numbers. That would require totally impractical amounts of storage. Instead, numbers are assigned at intersections or road ends and the GPS interpolates for numbers in between. That is why the destination will often be a house or more before or past the address entered. This results in little error within a city block, but can be far off in rural areas, especially with big lots or on roads that are not continuous..

That's what I figured, but I didn't phrase my confusion very well.

The address round-off could theoretically be wrong at the level of the car or at the level of the map data. Either the map maker ended the block with the wrong address or the car's approximation of the address caused it to refer to the wrong block of map data. (I can't say for sure whether it correctly took me to the address that it displayed or not, I had flipped back to the screen where you enter it in order to see the actual address as entered in order to try to find it)

Either way I think it's an odd decision to show the rounded-off destination on both the nav and HUD. Trying to remember the actual street number for a half hour trip when a different number pops up on the HUD is non-ideal.

I input 2345 Main Street and the car says "2340 Main Street in 1/4 Mile" (getting me looking on the wrong side of the street for one). Granted this is only my second in-car nav system, but it seems like a programming oops to display the raw data label used internally and not the input string.

 

[Aquineas]

The databases do not contain continuous house numbers. That would require totally impractical amounts of storage. Instead, numbers are assigned at intersections or road ends and the GPS interpolates for numbers in between. That is why the destination will often be a house or more before or past the address entered. This results in little error within a city block, but can be far off in rural areas, especially with big lots or on roads that are not continuous..

This sounds reasonable, but on the other hand, Google Maps and Google Earth can usually show you the exact address you're looking for. I know this because I've gone on there and looked up the addresses of the houses I lived in as a kid to see how they look now.

Incidentally, I found the same annoyance the original poster pointed out on my 2010 Genesis, and on the same roads it improved tremendously on my 2012.

 

[Pahaska]

This sounds reasonable, but on the other hand, Google Maps and Google Earth can usually show you the exact address you're looking for. I know this because I've gone on there and looked up the addresses of the houses I lived in as a kid to see how they look now.

Incidentally, I found the same annoyance the original poster pointed out on my 2010 Genesis, and on the same roads it improved tremendously on my 2012.

The databases for Google Maps and Google Earth are measured in terabytes. They do not have the size constraints that the maps in your car have.

The info about interpolation came from Magellan when there was a question raised about the address accuracy.

 

[Aquineas]

The databases for Google Maps and Google Earth are measured in terabytes. They do not have the size constraints that the maps in your car have.

The info about interpolation came from Magellan when there was a question raised about the address accuracy.

I'm not disagreeing with you. I think that Googe Maps or MapQuest should be the primary source for navigation directions and only fall back to the built-in data when there is no connection. Basically, the built-in entertainment system should allow itself to be "driven" by the phone software.

 

[ksoze]

Basically, the built-in entertainment system should allow itself to be "driven" by the phone software.

Totally agree and what the premise of Apple CarPlay's promise.

 

[quanva]

i took the car up to NYC this holiday weekend, I learned that the navi will route you based on current traffic along the route, i thought that was quite neat, i also thought that the traffic alert should show you alt routes you can take

 

[markpoisson]

I have found the route detour for traffic works great - even puts you on the access roads to the highways (takes you off, runs you parallel and then puts you back on). Very slick.

 

[Aquineas]

They probably improved it then, because on my 2010 and 2012, the traffic notifications were always out of date. My phone does a much better job with this.

 

[FlySwatter]

I noticed on the 2015 nav system it displays the road sign for speed limits and it amazingly changes on the display as you drive by the sign. Crazy. I wonder if the DOT tags those signs with GPS location when the stick them in the ground. That way the nav system has that location in its system and when you hit that certain location the speed limit sign changes. Pretty amazing stuff. Would have loved to be on that software project many years ago when nav systems were born.

I'll do you one better. When I'm in a school zone, the speed limit sign changes to show the "school zone" yellow strip on the sign as well. That extra detail really surprised me. Isn't there an actual camera built into the top windshield? Is it playing a role here? In my prior two Hyundais, I only got speed limit signs on my Nav system on highways and the interstate. Now I get them in much small areas. The Nav system has increased in quality substantially in the Genesis over my last two GPS systems in the Elantra and Azera.

 

[Seattle Genesis]

I'm thinking the camera is not part if the traffic sign display. I've seen it change on the nav system even when there is no road sign.

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[Seattle Genesis]

Is there a way to reboot the nav system without turning off the car? Today I set up a route and all it was doing is calculating......... 100%. Never finished. I had to pull off and shut the car off.

 

[FlySwatter]

Is there a way to reboot the nav system without turning off the car? Today I set up a route and all it was doing is calculating......... 100%. Never finished. I had to pull off and shut the car off.

I seriously doubt it. I haven't seen anything in the settings and don't know of a way to turn Nav off once it's been initiated. No matter what button you press on the DIS, Nav is still running in the back ground, so turning off your car was probably your only option

 

[allisondbl]

Is there a way to reboot the nav system without turning off the car? Today I set up a route and all it was doing is calculating......... 100%. Never finished. I had to pull off and shut the car off.

A quite possibly OBVIOUS/STOOPID suggestion: can you check to see if you have checked no tolls/highways or any other routing condition?

Haven't seen a GPS yet that knows to tell you "hey doofus you left that option on and doing that takes drive from 2 hours to 17 so might want to rethink it"!

Had at least one friend who ended up two hours out of her way as she didn't see that that was what the GPS had done until on the road for an hour.

And IMH experience when a GPS takes WAY too long to give me a route that's been the problem. Messed me up once. Fortunately, after my friend's experience unless I think route IS that complex, when I get that lovely spinny-spinny for longer than I deem acceptable I go check if that's been checked.

Will also just note that it could be trouble finding a satellite where car is parked?

Alley

 

[Seattle Genesis]

Thats tooo funny. Im sure there are no options checked that would increase the route calculations that long. Plus there are only one or two toll roads in the Seattle / Washington area. We all pay higher taxes to help the few. Its the socialist style government we have up here.... UGH !!

 

[italiabrain]

Is there a way to reboot the nav system without turning off the car? Today I set up a route and all it was doing is calculating......... 100%. Never finished. I had to pull off and shut the car off.

You can cancel the current route once it loads, and you can restart it while driving by selecting it from the previous routes list (can't retype it manually while driving obv.). I doubt that would help if it's essentially frozen though. As for pulling of the road, if you're in an otherwise safe place throw it in neutral and hold the start button for ~2 sec and it will shutoff.

 

[Roikins]

i took the car up to NYC this holiday weekend, I learned that the navi will route you based on current traffic along the route, i thought that was quite neat, i also thought that the traffic alert should show you alt routes you can take

That's a nice option , but I just wondering is there any way to display the traffic conditions on the map, for example as waze where traffic jam is in red color, and green color where is no traffic?
I also noticed that if you enter destination by POI , for example airport, which I did, it takes you literary to the airport, I was lucky to see a sign for airport entrance, but according to navigation it was going to take me directly to runway

 

[Roikins]

I mean that POI not the same place where the navigation would take you if you enter the POI address manually

 

[gobluefan]

I've noticed that the volume of the navigation guidance voice varies greatly. I haven't figure out why, but after using it for the first time in the day, the voice volume is greatly diminished, and it takes me a while to figure out exactly how to increase the guidance volume.

 

[allisondbl]

I've noticed that the volume of the navigation guidance voice varies greatly. I haven't figure out why, but after using it for the first time in the day, the voice volume is greatly diminished, and it takes me a while to figure out exactly how to increase the guidance volume.

Yes. the guidance volume control is DEEPLY buried in the Nav instructions, and note that you can also just set it as to whether and how loud the NAV instructions are as compared to whatever media you might be listening to.

 

[ckon]

Yes. the guidance volume control is DEEPLY buried in the Nav instructions, and note that you can also just set it as to whether and how loud the NAV instructions are as compared to whatever media you might be listening to.

If we're still talking about a 2g, guidance volume can be adjusted directly from the volume control JUST WHILE THE VOICE IS GIVING DIRECTIONS. No need to go into menus.