[Sapient]

There could be cultural differences at play here I suppose. The British seem to have a knack for queuing which may be missing in other cultures.

I live in South Africa, and I have definitely seen improvements in traffic when certain lights are out during rush hour (4-way stops on highways in particular).

[gawker]

I agree with the knack of queuing being missing in different cultures. In Malaysia, when the traffic lights go out, it's absolute deadlock.