In my experience, if you are talking to ATC, which you must be in class D airport zones, ATC will either advise you or the other aircraft of your position, even if conflict is unlikely. Likewise they expect you to report passing outbound so they know you are clear of their other traffic.
Inbound routing traffic should normally already be in touch with ATC before they get to any VRP, hence should be aware of you and the altitude you have declared.
I don't think it is obligatory to pass O/H, abeam should be just as good.