Keyword Proximity Distances

Check out:

http://www8.garmin.com/products/poiloader/creating_custom_po....

It says 1/4 mile for redlight. I'm not sure about the others.

Yes I read that page where it gives the proximity distance for "redlight", but have not found any proximity distance associated to any of the others.

If no one knows/answers then I will create some test POI's for each keyword and try them out.

It is not really clear but it should be 1/4 mile for the key words.One member reported putting speed in the file name and got alert for 1/4 mile.Just put your unit in simulator mode and test a poi somewhere close to you.Sure you will find it is 1/4 mile with key word using express mode.

I seem to remember reading somewhere that the alert distance changes with the vehicle's speed if the key-word speed is used. I would be interested to know how your test turns out. Please post your results and test method, I'll see if I can duplicate them.

Jack j

This is from PoiLoader help.
If a file contains "GATSO," "mobile," "SPECS," "safety," "speed," or "camera," but does not have a speed, POI Loader uses a default alert speed of 0, which means you will always be alerted. You can override this default value by entering the speed in Manual mode.

If you put a speed in the file name or individual poi example @25 this is the formula to find distance.
Prompt Distance = 36 seconds * Speed.

That's all correct as long as you enter a speed, but if you don't and the default speed is 0 then the formula you stated would give you a prompt distance of 0. So there must be a minimum proximity distance when there is no speed setting.

Which is really the original question of what is the default proximity distance for these keywords.

Entering the speed parameter changes it, but what is it changing it from.

Is there a minimum Proximity distance for each of these keywords and is it the same distance for all of them?

Using the formula you stated, the distance would be 1/4 mile @ 25mph which happens to be what is known about "Redlight" without any speed parameter. So that may well be the min distance for all of them.

There are two different statements in the post.The formula is use as stated when you put in a speed.

Proximity alert distance calculated by POI Loader based on speed information in the file name or in individual POI names. This calculation uses the following formula:

Prompt Distance = 36 seconds * Speed.

Key words

If the file name contains "redlight", POI Loader assumes all records in the file have proximity alerts with a distance of 400m/0.25 miles.

If a file contains "GATSO," "mobile," "SPECS," "safety," "speed," or "camera," but does not have a speed, POI Loader uses a default alert speed of 0, which means you will always be alerted. You can override this default value by entering the speed in Manual mode.

When you don't add speed it uses the default setting which for redlight key word is 1/4 mile.Not really clear on other key words except TourGuide also is 1/4 if used in the file name.Based on other users using key words with no speed result in 1/4 mile using the default setting.

Edit:After reviewing Hornbyps guide to setting alerts at http://www.poi-factory.com/node/6764. All the other key words also have a 1/4 mile alert.

I interpret the formula as follows:
36 Seconds * Speed...

My calculations show that if my speed is 60mph then the formula would produce:

36 * 60 = 2,160(Foot warning)
2,160 * 12 (inches in a foot)/36 (inches in a yard) producing an alert at 720 yards or 0.409090 miles. At this calculation you would have a couple of seconds to slow down before the big bad radar man in the sky snapped your picture.

GATSO????

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

Looks like GATSO would be a killer question for "Who Wants To Be A Millionaire" or Trivial Pursuits. I can't wait to try it on my baby brother who actually was a contestant on WWTBAM!!
Bob

Hi Can any one explain me the difference between the Keyword Proximity, Prominance and Density?

"Proximity" is how close.
"Prominence" is how obvious.
"Density" is how many in an area.

How that helps.

Jack j