Definitely a max of 2 Roads Goldenhord, as stated in page 6 paragraph 3.
As for the missing ‘s’ in the regional optional features … …well…look at Marsh/Marshes.
English is awkward. Without an ‘s’, it could give the impression that only 1 is allowed. With an ‘s’, it could give the impression you must have 2 or more. And an ‘a’ in front of the item could also give the impression of 1 only.
Basically, ignore the missing ‘s’ and just go by the limits in page 6 paragraph 3.