If you're on a bicycle, even if you're naked on that bicycle, drivers won't pay attention to you. So it's up to the average cyclist to devise ways to make themselves more visible. This can include everything short of sticking a strobe light on their heads.
Here's a little help: badass reflective tires. If that flashing light on your messenger bag and obnoxious orange vest don't work, try adding these. They look pretty cool in the daylight too.