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U.S. test drives Wi-Fi to improve traffic safety

8/22/2012 10:11 PM EDT
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chanj0
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re: U.S. test drives Wi-Fi to improve traffic safety
chanj0   8/24/2012 9:30:24 PM
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Back in the early time of WiFi, I have tested 11b and 11g. They are able to seamlessly handoff from one coverage area to another as long as same SSID is being used. There is a couple packet drops due to IP address changes. If APs are connected to the same DHCP server (IP address allocation server), the packet drops will be minimal. Nonetheless, to enable WiFi on road safety, there will be a lot of challenges and that's why R&D is necessary. Funding will definitely help. ;)

pidikiti surendra
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re: U.S. test drives Wi-Fi to improve traffic safety
pidikiti surendra   8/24/2012 5:15:37 AM
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but wifi will be working only in a small area in the city. if in case the vehicle will move out of that wifi network . is it working?????????]

DrQuine
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re: U.S. test drives Wi-Fi to improve traffic safety
DrQuine   8/24/2012 4:01:53 AM
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GPS and WiFi together could be used as channels to alert out-of-town drivers to all the hazards that the locals are familiar with. That could be a real benefit - and indeed might be a minor addition to the existing GPS navigation systems that are increasingly common (especially in the hands of unfamiliar drivers). The WiFi "car-to car" system seems more problematic. "Relatively fast, secure and nearly invulnerable to interference" sounds promising. However, my personal experience with unreliable WiFi sitting still at home make me very wary of depending upon it for my life and safety at high speeds. Even a dedicated protocol would require a lot of testing to ensure that it didn't fail at the worst possible times.

Duane Benson
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re: U.S. test drives Wi-Fi to improve traffic safety
Duane Benson   8/24/2012 2:33:35 AM
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Teaching my kids to drive has made me re-think a lot of safety issues that have become second nature to me after years of driving. But there are so many opportunities to make things safer; and not just in the city. Just yesterday, I was cautioning him to put his turn signal on because the intersection is over a blind hill. Hazards like that are all over the place around here.

nicolas.mokhoff
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re: U.S. test drives Wi-Fi to improve traffic safety
nicolas.mokhoff   8/23/2012 4:27:49 PM
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I'd rather go back to slower pace of horses (or asses) with wi-fi routers. I think the Israelis are showing the way: http://www.israelhayom.com/site/newsletter_article.php?id=5466

agk
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re: U.S. test drives Wi-Fi to improve traffic safety
agk   8/23/2012 1:06:39 PM
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Many types of communications are possible like wi-fi wi-max. But the the real work is that every vehicle needs to sync with their clock timings and the timely processing of the data received from many near by vehicles is quite a bit of tedious work. A good software which has to analyze the speed,acceleration,pre planned direction of movement,size of the vehicle and decide to send warning information to the drivers of the vehicle are so much important.Instead a better technique will be to have micro radars fixed in the four sides of the vehicle and do analyses which is more faster and easier and accurate, works in real time.

chanj0
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re: U.S. test drives Wi-Fi to improve traffic safety
chanj0   8/23/2012 6:23:22 AM
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Today, there are a lot of people having GPS and communication in the car. It can possibly help road safety. Nonetheless, it still cannot compare to peer to peer communication on the road. How are communications being handle? AP is installed on the road while every vehicle passing by will talk to it. Although WiFi allows automatically handoff from one "cell" to the next "cell", packet drop is inevitable. I'm sure there are a lot of challenges ahead which also equate to opportunities. Please feel free to share some of the challenges. ;)

prabhakar_deosthali
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re: U.S. test drives Wi-Fi to improve traffic safety
prabhakar_deosthali   8/23/2012 4:26:31 AM
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This is good initiative by the traffic department. One thing that the traffic department can do is to flash messages to the drivers whenever they are exceeding the speed limits. In the later stage if such centralized system could automatically regulate the individual vehicle speeds as per the speed zones in which they are travelling , it will reduce the accidents by 50%

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