Speed and redlight camera POI Forum
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| Posted by jayaweera Proximity Hi, Just like to what are reasonable proximity distances settings in METRES for: Red Light cameras Speed Cameras School Zones Thanks in advance |
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| Posted by david.goteborg Re: Proximity? I have found that 500 meters for school zones and 150 meters for speed cameras work well. Red light camera warnings aren't of much use, since I wouldn't run a red light regardless if it was camera protected or not. |
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| Posted by victorbishop Distance sugestions Here is what I use in a city: Accident black spot alerts - 400 m Low Bridges - 225 m Mobile speed camera - 250 m Red Light Camera - 150 m School Zones - 200 m Fixed Speed Camera - 150 m ( all are available here: POI Updates) I drive a truck so the low bridge warning is good for me all though I had to get rid of all heights above my truck as the "false" warnings were driving me nuts. Another thing I did was add custom audio alerts to the files i.e. "red light camera" or for school I have just "school ahead" but am going to change that to simply "school" I hope that helps. Vic |
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| Posted by GDT More... Some posts are not listed here. See all posts here: Proximity GPS Data Team |
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| Posted by dteterin Re: Help
You can set distance in POI loader (Garmin) when you are uploading POI in to the device or leave it "auto" (how I do) |
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| Posted by ncampolo777 Re: Help Good idea set auto distance but I couldn't find it when I opened window to choose distance. Where is it? Thanks |
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| Posted by aviegas Re: Help
If the distance is specified in the POI loader, all POIs will be set to that distance. GPX files can set a proximity distance on a POI by POI basis. With a GPX file one can set different proximity distances for each camera speed. I use a formula to calculate the distance based on speed and reaction time and it gives me the following values. The idea is that at the worst case the driver will be at 40% + 5Km/h above the rated speed and needs to decrease the speed to the rated value within a given number of seconds (8secs). The values I use are: 20km/h -> 90m 30km/h -> 130m 40km/h -> 160m 50km/h -> 190m 60km/h -> 230m 70km/h -> 260m 80km/h -> 290m 90km/h -> 330m 100km/h -> 360m 110km/h -> 390m 120km/h -> 430m I share my experience with more than a dozen friends and everyone find those values reasonable. |
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