Originally Posted by Aryan

Originally Posted by Grease Monk

THe google result you recieved is how the headlight flash is used abroad. For example, when a truck on the freeway in an adjacent lane wants to change lanes and has his indicator on, you can flash your headlight to indicate to him that he is clear to come into your lane and you do not wish to accelerate.

Most of the time the truckers even return with a 'thank you' flash from their hazard warning lights when done.

Another instance, when flashing the headlights is useful is when approaching 4 way junctions. Although there are a set of rules as to who gets right of way, in some instances, depending upon the timing of the approach of the vehicles to the junction, there may be some ambiguity. In this instance, any of the drivers who wants to give right of way to the other simply flashes their head lights to communicate to the other driver that they may proceed.

It is very interesting how this symbol has the opposite meaning in the west and in India. My interpretation of it is the mindset of people on the road. Abroad, everyone is worried about liability and negligence suits and there is a general sense of camaraderie or respect on the road. In India, on the other hand, it is a rat race where everyone wants to get to their destination as fast as possible and anyone who gets in their way be damned. Me-first, see a gap - take it, all are attitudes of Indian drivers\riders that we need to grow out of considering the volumes of vehicles we have on the road.