Bear in mind that there is too much information on the roadways for drivers to process it all. Thus, they get used to taking mental short-cuts like only looking for traffic in the places they expect it. You already have one strike: you're not a car and therefore risk being "processed out" and not "seen". By putting yourself where people (and drivers) don't expect to see traffic you are much less visible than you think. Remember the gorilla films' lesson: People see what they are expecting to see. Stay in places they expect to see traffic and you will live longer.