Thank you all for so far, keep the replies coming. Everyone of them was very helpful. I had some questions and remarks on some of the replies. Everyone is free to participate in the discussion
@Grivooga:
This is actually really helpful. I already thought of this in a way, but now I have some back up on this problem. Do you think a sort of dynamic system with sensors that determine if you are in a well lit area or not could be an idea?
@wsbob:
This is a good idea. But don't you think, after seeing the video, that he is still not very visible. Only his head is noticeable, I could imagine that it is a bit confusing for the other traffic.
@Scrabbler:
Thanks, I know, but now I can keep the conversation going a bit and reply on good input.