[QUOTE 4495239, member: 259"]If the stickers that people are seeing are these:
They are part of a national campaign in NL called
Velilig op de weg (Safe on the roads) which is run by cycling safety and trucking industry organisations.
Kids get lessons at school on how to avoid blind trucks' spots and they are told that the best place to be in relation to a truck, esepcualliy at traffic lights, is on the right and a few meters behind. The stickers are meant to reinforce this.
They do a similar thing for schools in Flanders.[/QUOTE]
I've never noticed one of the stickers, although I think two of my kids have had the training.
The only truck I saw today had a sticker "Grandpa Frits" where the bike sticker would have been.