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Originally Posted by directinjection What's the difference between the two? |
IS standards were in place before the AIS committee was formulated. All new test standard development has been under the AIS. Some old IS standards do exist however (Pass by Noise, etc.) Unfortunately, they are not available free in public domain. However, if you want, you can access them by visiting ARAI library (at a cost, AFAIK)
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Originally Posted by directinjection Are you sure it has come into force in India? There was a press report saying that its implementation has been postponed. |
As I said, I am not actively involved with the Indian Homologation since 2005, so I cannot definitively comment on this.
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Originally Posted by directinjection The code in question is called AIS-093 and can be downloaded from ARAI website. It covers not just truck cabs but also bodies and trailers. Here again, I think vested interest groups have kept its implementation indefinitely pending through successful lobbying. |
You may be correct on this one. Same answer as previous one.
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Originally Posted by directinjection To deal with this problem, an automatic beam dipping device was invented way back in 1978. It was equipped with a light sensor and was fitted under the driver side headlight. As soon as an oncoming headlight beam fell on the sensor, the device caused an automatic switchover to low beam, in case the original setting was high beam. As soon as the oncoming vehicle would pass, auto switchover to high beam would occur again. Such a device should be made obligatory in India - an Indian solution to an Indian problem! |
The idea is correct. But the problem lies whether the technology is able to perform under all operating conditions. Innumerable studies have gone through to find how it can be implemented, but the problem was that the activation of the beam switchover was not able to clearly distinguish between a passing vehicle and a stationery object (tree, lamp-post, etc). We have to be careful when mandating any new requirement about its detrimental effect in case it malfuntions as the results could be counter-productive. If an accident occurs due to incorrect dipping of the device, then no one would spare to blame the Govt. for implementing it.
The committees have to be very careful of the negative effects of any new requirement they intend to mandate.
To incorporate an intelligent device would also hike up the vehicle cost and that would not be ideal in an already cost concious market. Retrospective fitment would be all the more difficult and costly.
Hence the best and the cost-effective way is awareness about the correct use of beams whilst driving.
Gandhar.
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Originally Posted by selfdrive I would be willing to pay for a device in my car that would cause an automatic switchover to low beam in oncoming cars!
Jokes apart, this should be made mandatory. If not perhaps a special type of film should be made that reduces the impact of high beam from oncoming cars. I am not sure if something like this already exists, but it would be a boon
There have been multiple occasions when I have been temporarily blinded by high beam from oncoming cars, and I have been plain fortunate that nothing serious has happened. |
You are correct. When I drove in India the last time, an LCV with high beam was passing by, I was so annoyed by the high beam glare, that I drove straight towards the LCV blocking his way, getting out of the car and politely (that was difficult) explaining that because you were on high beam, I cannot see the road ahead. On hindsight, I may not do that again as if the LCV driver was under influence of alcohol, he would have just carried over me
On the use of such a film, unfortunately, the purpose of the high beam is to be able to see the road far ahead clearly. If a film is used, this very objective of the high beam goes out of the window.
Another point is the incorrect setting of the beam, in general. How many times have we asked the service engineer to check and adjust the beam setting, if necessary, when we get our car serviced? Agreed, that should be done by the dealer anyways, but still. On the contrary, I have been told that some idiots purposely want their beams directed to cause glare and also request them to be so..
I strongly believe awareness is the key and technology should
not be used to cover up acts of common sense.
Gandhar.