Land/Surface segments (or open Jaw) count towards your 16 segment overall limit, but
do not count for your continental limit.
So
-HNL-LAX-EWR,LGA-DFW-FLL,MIA-DFW- is quite valid as it only has five NA segments.
Note that this N/A part does use up seven of the sixteen allowable segments; so
AKL-SYD-HNL-LAX-EWR,LGA-DFW-FLL,MIA-DFW-LHR-BCN-MAD-LHR-SIN-SYD-AKL uses all of those sixteen segments. (14 flight and 2 surface segments)
Note the distinction in the rules between 'segments ... including surface ...' and 'flight segments', even to the point of the word flight being bolded. (
http://www.oneworld.com/content/libr...r.pdf#pageno=3)
Code:
(h) A minimum of 3 and maximum of 16 segments, including surface
segments between any 2 airports, are permitted for the entire
journey. Free flight segments within each continent
are limited as follows:
Africa 4
Asia 4
Europe Middle East 4 ...
North America 6
South America 4
South West Pacific 4