This goes along to my earlier thread from week or so back regarding helmet mounted lights vs. handlebar mounted lights. I noticed a few here use a flash pattern lamp along with thier normal headlamp.

My question is, where does this help? Unless you are riding against traffic (which you shouldn't be), what benefits would this have?

I can see this function helping at cross-roads. Any where else?

Thanks for the replies! I am curious about this.