4. And let's not forget since RVFPs are visual approaches they must be flown in VMC. Aircraft can be routed through waypoints in RVFPs in IMC all day long, but before they're actually cleared for the RVFP the pilots must have the airport environment (or preceding aircraft) in sight and be able to remain clear of clouds. Thus the level of safety of RVFPs is no less than a CVFP.
Bears the question what 'airport environment' effectively means.
To me this means and includes that the active runway must be
clearly identified.