"Sam Spade" wrote in message
news:nrctg.664$_M.186@fed1read04...

Most controllers do not design MIAs or MVAs. It is a specialty, which
requires airspace training beyond what is required to control traffic.

Steve is commenting in the abstract, rather than from real-world
practices.

In alt.binaries.pictures.aviation I have posted a two page PDF that shows
both the MIAs (LA Center) and MVAs (Palm Springs TRACON) for an identical
portion of the airspace around Palm Springs.

The title of the posting is:

Palm Springs MIAs MVAs for IFR Group

The file is:

PSP MIAs and MVAs.pdf

Note in particular how much higher the MIA is for the valley floor. This
is because the specialist at Los Angeles Center know they have no radar
coverage down in that valley, thus the MIA design in this case takes into
substantial consideration the center's radar coverage in that area.

It's a facility call to design MIAs in accordance with what they consider
to be the best fit for their airspace and terrain.


What do you base that on? FAA Order 7210.3 says MVAs are established
irrespective of the flight-checked radar coverage, that they are based on
obstruction clearance criteria only. FAA Order 7210.37 says MIAs are to be
established without respect to normal radar coverage. Have these orders
been rescinded?