i think most dr's would prefer a c-section over a vbac so if that is what you want to do then mention it and you will most likely get to have an elective c-section.
i had an elective c-section with DS2 at a public hospital. with DS1 i had a natural birth in a private hospital, but because of complications (failure to progress, forceps, 4th degree tear and PPH) my original private OB recommended a c-section for future births. i spoke to 2 different OB's at the public hospital, at my 22 week appt and again at 36 week appt, and both said i could try to have a natural birth if i really wanted to, but if it were them they would have a c-section due to the complications from last time.
so i guess it just depends on what exactly happened with your last birth.