Application of new spelling rules can make it necessary for toponymic
databases to change hundreds or even thousands of names in order
to comply with the new orthographic rules. Examples of recent
orthographic changes are those in Germany regarding:
ß and ss: In reformed
orthography the grapheme ß
is considered a separate letter that is to appear only after long
vowels and diphthongs.
Otherwise it should be written ss.
Triple consonants
preceding a vowel are no longer reduced (but hyphenation is often
used in these instances anyway):
- Flußschiffahrt
Flussschifffahrt,
Mißstand
Missstand
Several loan words now allow spellings that are closer
to the German norm. In particular, the affixes -phon, -phot,
and -graph can be spelled with f for ph.
Although the
new spelling rules do not apply to geographical names and personal
names, they do apply to derived geographical names, for instance
when used as adjectives. Application of all the ensuing changes
may severely tax the toponymic authorities, and call for some
planning measures.
Example: The 1995 amendment to the
Dutch spelling law of 1947 called for separating name parts that indicated cardinal directions from
the geographical name parts by way of a hyphen, for instance Noordhollands
was to spelled Noord-Hollands fortwith (see images below). That meant
that, on the map, the geographical name Noordhollands Kanaal was
to be spelled Noord-Hollands Kanaal. In total, for the Bos school
atlas in the Netherlands with a names register of some 30 000
names, this entailed changing some 600 geographical names both
on the maps and in the register.
Below the Dutch
examples (Noordhollands>Noord-Hollands and Zuidchinesezee>Zuid-Chinese
Zee) from Bos van Balen Atlas 1960 and Noordhoff Bosatlas 2006.

(1960)

(2006)
(1960)
(2006)