I think you make a very good point about truckers being educated and assisting in this. My cousin Tamara has been missing. Her dad Tom is a trucker. He trucks from Terrace to Alberta and sometimes into Saskatchewan quite regularly. Yes, it would definitely be a huge help if they used their network to help get the word out when a woman goes missing.
I think there also needs to be a proper active list of women who are missing based on location. If I were to be, say, in Winnipeg and saw an active list of who's missing, I'd know who to look out for. Of course, that would be voluntary for anybody who wants to look, but I think you'll find that, for those of us doing the work already, it's something we would definitely look into.