[jameshart]

By priority to the right do you mean a French style priorité a droite? Or American style stop sign priorities?

Neither system describes how Indian traffic works, which is much more of an iterated cooperative fluid dynamics simulation, with the main rule being ‘don’t drive into people who are in front of you’.

And they drive on the left, so priority to the right makes no sense.

[jabl]

> By priority to the right do you mean a French style priorité a droite? Or American style stop sign priorities?

I mean

https://en.wikipedia.org/wiki/Priority_to_the_right

That is, unless there are other signs overriding it (like yield or stop signs), you must yield to someone coming from the right in an intersection.

> And they drive on the left, so priority to the right makes no sense.

Not sure that matters. The important thing is to have a consistent rule that everyone can follow. Whether the rule is to yield to the right or left doesn't per se matter, nor does it depend on which side of the road you drive on.

[vel0city]

I do agree consistency is probably the most important thing, but deciding which side should go first can have differences based on if you're driving on the left or the right.

Imagine a 4-way stop of 1 lane each way roads. Cars drive on the right in this example. One car rolls up traveling from west to east and another car from south to north.

If we give priority to the right, meaning the south->north traffic, they end up out of the way of the other car sooner than the car on the west to east traffic. They only need to cross halfway before they're unblocking the other traffic. If we give priority to the left, meaning the west-east traffic, the west-east car needs to cross the entire road before they start to unblock.