GPS Systems With Real-time Traffic Can Save Drivers up to Four Days per Year

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Nathalie

Data can be sent to your cell phone or personal navigation device in one of four ways.The company also uses cell phone data from GPS-enabled devices. When a passenger in a car requests a Sat Nav position from a phone, the speed and location of the phone is sent to Inrix.

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BobSniders

GPS manufactures Garmin, TomTom etc... all get their traffic data from a limited number of sources, and these sources get there data in two ways. Through actual physical sensors on the ground, or through what they call "dust" network. The sensors are usually pretty accurate but their coverage is limited, the dust network are essentially individual cars, cab drivers, truckers that have been commissioned to drive with a tracking device and report back to the traffic info collector. This can greatly enhance the coverage, but some traffic info companies over extend this and report conditions when there is insufficient data density. No matter what system you use, there is going to be some lag to the system, so it isn't uncommon for you to be stuck in traffic due to a new incident when the system reports all clear.  

Some may ask why bother with these at all ince traffic reports are widely available online, as a Toronto Canada residence, I all too frequently only remember to check traffic when I am already stuck in it, thus having it right on your GPS can be very helpful. Traffic info on your GPS basically turns your GPS into a excursion only device to a useful everyday tool. For those Canadians amounst us, I recommend this site when it is time to find a deal for GPS receivers

PS: I own a Garmin 780 and I love it! 

 

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jimgreig

My GPS  with real time traffic alerts (I will not reveal the name--more and more companies are suing people for libel for the posts they make online) only seems to be accurate in areas where there are no reasonable route alternatives. Otherwise it is almost universally wrong.

On a recent trip from DC to Brooklyn, NY, my GPS showed me to be stuck in traffic, when I had clear sailing the whole way. It then proceeded to try to route me through Manhattan (rather than through Staten Island) to get to my destination. I ignored it, and the route I chose was clear.

Returning to DC it showed my route to be clear while I was parked on the NJ Turnpike.

All this in an area where they advertise come of the best coverage. 

 

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MeTo

Then they tell you to make a "right" here and if you do you will run rite smack dab into a building.

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Danduhman

I'm still waiting for a GPS company to make it where you touch your GPS where you see a cop car to know when to slow down, so have a slight reference on where there are located at. Would be pretty tight if they could get it to work.

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snapple00

What?

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BaggerX

The idea is that everyone would get updates to their GPS that would warn them that a cop was spotted somewhere so that they'll know to be careful in that area.  There are a lot of problems with the idea, so I don't think we'll see a useful implementation of it anytime soon.

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DBsantos77

It's not you, MaxPC scored a lot of ads recently, from mice to AMD to Apple and other stuff.

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jwalch.hawk

Do they have a vested interest in the results of the study?  Obviously.  Anti-smoking people also have a vested interest in a study correlating cigarette smoking to cancer - they also happen to be right.

I'm not going to pass judgement on credibility without reading the actual study.  Having an interest in the result doesn't preclude you from doing good science.  It just means there's good reason to carefully verify their results, which is what should be done anyway.

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1337Goose

I see what you're trying to say. But if you think logically about it, there's no reason for NAVTEQ spend money on a survey like this in the midst of a recession unless it was going to boost their sales. If I was a corporation, I would do everything in my power to skew a survey in my favour. If this survey was in the name of true science, it would also list the types of conditions in which these results were achieved, and it would also point out that there isn't always going to be any definitive gain.

Now, I'm not calling NAVTEQ a bunch of liars, I'm just entertaining the idea that this survey doesn't necessarily need to be based on 100% neutral and unbiased truth. Right? 

~Goose

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jwalch.hawk

Oh, I'm more than willing to believe that they worked bias into the survey (leading questions, for example).  It's just that in the absence of actually seeing the study (which this doesn't link straight to), my speculation is just that: speculation.

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MeTo

20 % of the people that die of lung cancer have never smoked in ther life. Cigarette smoke is not the only thing causes lung cancer. Smell the diesel fumes while driving,smell the fumes when pumping gas,Bleach the list goes on and on they are carcinogens that cause cancer.

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jwalch.hawk

I was concerned about putting that because I knew someone wouldn't see what I was driving at.  My point wasn't to say smoking is bad, smoking is the exclusive cause of lung cancer, blah blah blah...  However, it *has* been well shown that smoking increases the risk for lung cancer.  How they present their results is where bias comes in, but it is entirely possible for a biased scientist to be correct when saying that smoking increases your risk for lung cancer by X%.  The point I'm making here is that no matter what I *want* the results to be, if I'm doing a good study, the results are going to be whatever they're going to be.  The whole point of objective science is replicable results.  That's why I'm saying I'm not going to attack their credibility.  Obviously the group in the article wanted the results to be along the lines of what they were - but if their study was a good one, it wouldn't matter what which way their bias was since the results don't depend on it.

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K0BALT

Is it me or are more ads popping up in places on this site....... not only do they release stories/articles on the site before i receive my paid subscription, but now i can't even flip through one page without ads popping up and more on the page themselves.

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1337Goose

 Yes, I also recently conducted a study on how awesome I am, and 99.9% of respondants agree that I am totally awesome. Of course there is a 0.1% margin of error.

 I'm sure NAVTEQ wasn't about fund a survey that claimed that their services were useless. 21% less CO2 is a steep figure to believe. There has to be some bias in this survey.

~Goose

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Tekzel

Actually, I don't think the 21% number is too outrageous to believe.  Some people who commute a lot often spend a huge amount of time just sitting in traffic.  If their drive takes twice as long (not a far out estimate in my experience) then that is a lot more CO2 that is expelled.

However, I do think that any sponsored study like this should definitely be verified independantly.

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1337Goose

Depends where you live, I guess. Did they conduct this survey in a heavily congested area where using a realtime traffic GPS will save you half your commute time, or was it conducted in a place where traffic adds a mere 5 or 10%. I bet it was the former. 

But I do see your point, if you spend half of your time on the road idling, then 21% seems at least partially reasonable depending on the type of drving and type of vehicle. 

~Goose

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nmanguy

Environmentalism has gone too far. I don't give a damn about CO2 savings, I want to know gas savings.

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Tekzel

Then you do care about the CO2 savings, as one goes along with the other.  If you burn less gas, whether it be because you are sitting idle in traffic less or driving a more gas efficient vehicle, then you are expelling less CO2.  Don't get me wrong, I am not some evironmental nut.  But, I do think that if we CAN be better to our environment, we should.  I could just leave trash lying around in my house, but I would rather clean it up and keep it clean.  It makes me more healthy and happier to live in a clean home.  The same goes for the environment, which is just an extension to my home! haha

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