7 km/h speed alert

 

I purchased the POI Factory's Speed Alert Camera csv file last week and while driving this morning in Winnipeg, Manitoba, Canada, I noticed quite a few 7 km/h speed alerts on my Nuvi 1490LMT screen. Yes, 7 km/h! I opened the csv file and I was unable to locate which lines say 7 km/h.

Also, it was an eye opener that when the voice said I had arrived at my destination to my left and I looked out of the car's window and I didn't see the house address, but I had to drive another six houses down the street for the exact address. One particular case, the voice told me to turn right and I would arrive at the Long & McQuade store location on Stafford Street yet when I looked out of the window, I could see that the Long & McQuade store was to my left requiring a left turn, not a right turn.

Also, the POI Factory tells me to slow down near a School Area which is valid for some locations but not valid for other locations where I did not see the bright yellow School Area road sign.

Also, although a few Red Light Cameras had been covered up by a vinyl hood, the POI Factory file still warned me about those red light cameras.

Finally, Navteq often showed the horizontal street name to the right of the vertical route I am traveling on and not the street name to my left in instances where a street name changed into another street name after you crossed the vertical street. I don't understand why some cities do this. My own house street changed into another street name on a certain vertical street and lo and behold Navteq named the other street name but not my street name!

7 km/h

Do you by some chance have the number "7" anywhere in one of your file names. The Gamin software picks up on a number in a file name and assumes that a speed limit.

--
Phil in Mentor, Ohio -- Garmin Nuvi 1450

Since you mentioned school zones

That file is HUGE (or rather the four files), and many of the locations are no longer there (more of a historical nature). That being said, I would then assume you loaded in custom POIs. If one of them was 7-eleven, just the number 7 being in the POI name will trigger 7 MPH/KPH speed alerts. Look for one the next time that alert triggers... (or just read the alert. It may actually say '7-eleven' in it)

--
Striving to make the NYC Metro area project the best.

Schools, 7 and more

camerabob wrote:

That file is HUGE (or rather the four files), and many of the locations are no longer there (more of a historical nature). That being said, I would then assume you loaded in custom POIs. If one of them was 7-eleven, just the number 7 being in the POI name will trigger 7 MPH/KPH speed alerts. Look for one the next time that alert triggers... (or just read the alert. It may actually say '7-eleven' in it)

I agree that there's a file somewhere with a numeral 7 in the file name, and "7-eleven locations in Canada" is the most likely culprit. If you have this file, withashout, just change the name to something without the "7". You could rename the file "seven-eleven locations in Canada." Withashout, it's not a "7" inside the csv file--it's the actual filename of the csv that needs to be changed.

Camerabob, is this the school file you refer to:

http://www.poi-factory.com/node/17

Note that one can either download the file for the entire USA which is what I do or any of four regions, but it can be done as a single file. But I doubt withashout is using this file since her or she is in Winnipeg. Withashout, did you install a school POI file downloaded from here at The Factory--and did you download and install sox.exe and a custom wav alert file? If your answer is no to any of the above, then is it possible that it's a Garmin built-in file on your 1490LMT that's causing your school zone alerts? My guess is that your phantom school alerts are not appearing on your 1490LMT due to something you obtained here at The Factory (unless you did a lot more with POI Loader than you've stated so far.)

Regarding non-functional red-light cameras, please report these to JM if you're sure they're permanently out of service so future weeks' redlight POI files can be corrected.

Finally, with regards to destination addresses, withashout, map makers don't hard code individual addresses into their maps. What they do instead is along the lines of recording the address at each end of a block, then doing some arithmetic to estimate the mid-block addresses. Having to drive an additional six houses (or even more--or even finding the address on the other side of the street) is normal and is something we have to live with. If this is an address you will visit often, once there, create a "Favorite" and give it a name so you can route to the actual lat/long in the future rather than to a street address a few hundred feet from the desired location.

Shout back if you need anything else.

House numbers

CraigW wrote:

Finally, with regards to destination addresses, withashout, map makers don't hard code individual addresses into their maps. What they do instead is along the lines of recording the address at each end of a block, then doing some arithmetic to estimate the mid-block addresses. Having to drive an additional six houses (or even more--or even finding the address on the other side of the street) is normal and is something we have to live with. If this is an address you will visit often, once there, create a "Favorite" and give it a name so you can route to the actual lat/long in the future rather than to a street address a few hundred feet from the desired location.

Absolutely. My home is several hundred feet from where both Garmin and Google say they are. You cannot even see my house from their coordinates.

Also, Garmin says some destinations are on the left when in fact they are on the right of the road. This may be due to a common numbering system for either side of a road. (Even numbers on one side and odd numbers on the other.)

--
NUVI40 Kingsport TN

More info

David King wrote:
CraigW wrote:

Finally, with regards to destination addresses, withashout, map makers don't hard code individual addresses into their maps. What they do instead is along the lines of ...

Absolutely. My home is several hundred feet from where both Garmin and Google say they are. You cannot even see my house from their coordinates.

Also, Garmin says some destinations are on the left when in fact they are on the right of the road. This may be due to a common numbering system for either side of a road. (Even numbers on one side and odd numbers on the other.)

Check out the section entitled "Complicating factors" and in particular, the subsection "Finally, several caveats on using interpolation:"

http://en.wikipedia.org/wiki/Geocoding

Need more?
http://www.ij-healthgeographics.com/content/2/1/10
Figure 4 is worth a detailed look.

Canada, eh?

CraigW wrote:

Camerabob, is this the school file you refer to:

http://www.poi-factory.com/node/17

Note that one can either download the file for the entire USA which is what I do or any of four regions, but it can be done as a single file. But I doubt withashout is using this file since her or she is in Winnipeg.

Indeed. I forgot about the above-the-line fact. wink

--
Striving to make the NYC Metro area project the best.

You're forgiven

camerabob wrote:
CraigW wrote:

Camerabob, is this the school file you refer to:

http://www.poi-factory.com/node/17

Note that one can either download the file for the entire USA which is what I do or any of four regions, but it can be done as a single file. But I doubt withashout is using this file since her or she is in Winnipeg.

Indeed. I forgot about the above-the-line fact. wink

You're forgiven but as penance, you now must eat a large serving of poutine and wash it down with a large Tim Horton's coffee.

I love poutine, but no Tim

I love poutine, but no Tim Hortons for me.

--
"Anyone who is capable of getting themselves made President should on no account be allowed to do the job." --Douglas Adams

You guys and gals are the

You guys and gals are the best! Yes, the offending file was named 7 Eleven Canada.csv. I'm surprised the POI Factory people didn't catch the use of a numeral in the file naming. OK, I renamed the file to Seven Eleven Canada.csv. Thanks!

What was really funny was when I switched from kilometers to miles option, the speed alert for a School Area changed from a very low 7 km/h to 4 mi/h!!

The maintainers upload the files

JM and Globeturtle do not change the names. The names are what the maintainers name them. I, like you, wish that everyone would name the files without a number, but we can't change the world.

--
Nuvi 2460LMT.

Renamed

I renamed the file from "7 Eleven Canada" to "seven_eleven_canada".

The USA file avoided using "7", so this makes the two consistent and will help avoid triggering alerts.

Jonathan

You are quick

JM wrote:

I renamed the file from "7 Eleven Canada" to "seven_eleven_canada".

The USA file avoided using "7", so this makes the two consistent and will help avoid triggering alerts.

Jonathan

You are quick.

Are you going to change other file names that contain numbers? Or, adopt some other method to help avoid unintended alerts?

Heh

jgermann wrote:

You are quick.

Heh. Maybe we CAN change the world! twisted

--
NUVI40 Kingsport TN

file names

jgermann wrote:

Are you going to change other file names that contain numbers? Or, adopt some other method to help avoid unintended alerts?

Let's handle these by sending a note via the content form when they are found.

Jonathan

Numbers in File Names

JM wrote:

Let's handle these by sending a note via the content form when they are found.

Jonathan

Sounds good.

The most common offender was the 7-eleven and you have already fixed it.

Whenever I find a number in a file I like, I will contact the maintainer and indicate the problem that the number might cause. Hopefully, a number of others will do the same thing.

Hopefully, also, maintainers who have a number in one of their file names and who are reading this thread will go make the changes now.

Do not know the answer to this question - what will happen to "My favorite Files" when a file name changes? I think it will still be OK.

Thanks

I changed mine.

JM wrote:
jgermann wrote:

Are you going to change other file names that contain numbers? Or, adopt some other method to help avoid unintended alerts?

Let's handle these by sending a note via the content form when they are found.

Jonathan

I ran into this problem already.
http://www.poi-factory.com/node/36817

I changed my POIs.

--
NUVI40 Kingsport TN

my favorite files

jgermann wrote:

....

Do not know the answer to this question - what will happen to "My favorite Files" when a file name changes? I think it will still be OK.

....

"My Favorite Files" works using a link to the page, so there's no issue with changing the file name.

Jonathan