Signs are getting bigger
Differentiation of languages in sign design
Bilingual ‘time delay’…
Wales’ bilingual solution takes longer to read than a one-language sign (Rutley 1972). This is not surprising, because increased information on a sign increases comprehension time. And the time is increased further, especially for English-speaking drivers, when Welsh is placed above English.
It does suggest the importance of differentiating our Irish place names from the English. In view of the status of the Irish language, how is a level of differentiation best achieved, whilst preserving ‘equal prominence’? 
Above: Welsh/English sign
Read More...The use of English on Ireland's signs
All uppercase versus lowercase – readability and practicality
When upper- and mixed-case words occupied the same sign area Forbes and his colleagues found a significant improvement in reading distance with the mixed-case words.” (Garvey 2006)
Above: Illustrates the advantage of upper and lowercase over all uppercase – in terms of word shapes produced. Both words occupy the same sign area.
Read More...The reduced status of Irish – made visible
Reduced status of Irish made visible.
In the context of the government’s statement on language, following are examples of how the current road sign design effects the reduced status of Irish relative to English...
The relatively larger size of upper case words…
Above: Illustrates the greater space occupied by the same legend set in all upper case.
A consideration in the light of government’s regulation and aspirations for the Irish language is the fact that words in upper case occupy 40% more area (Jury 2002) and are thereby more prominent than lowercase. While this achieves a level of differentiation with the Irish place name, it is at the expense of the relative prominence of the Irish.
It is hard to see how this can be argued to give equal status to Irish. It certainly is not in keeping with the spirit of the regulation…
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Old Irish meets modern European
Letter confusion – old Irish meets modern European…
Inexpert handling of drawing new letters is likely to cause confusion – an uppercase faux Irish ‘A’ (In lowercase style) and a lowercase ‘i’ without a dot are examples of this confusion in the design of the ‘Irish language italic’ in Ireland’s bilingual road signs.
Characters commonly mistaken for each other (Jury 2002) must receive particular attention from the designer of road signs, this is confirmed by (Spencer et al. 1973b). Lowercase ‘a’ and ‘o’ are cited as such problematic letter forms. Even if this re-design of the type were well executed, it is inappropriate to create stylised letter shapes. Unusual letter forms are likely to inhibit readability of place names. Moreover, in common usage Irish is set in contemporary typefaces and this should be reflected in signs.Read More...
Some background on the evolution of the UK's signs
A little of the history of the UK’s road signs.
Looking at the UK’s National Archive I was struck with the fact that the situation there could have been very different, were it not for the intervention of one or two decisive individuals...
“...it has long been my belief that we would do best to submit all our proposed traffic signs to a consultant industrial artist, who is a expert on lettering. I know it can be argued that, having adopted an alphabet, all the rest is merely routine. I know too that a special relationship has been built up between the Ministry and the sign manufacturers, which introduction of a third party in the form of a consultant would complicate. Nevertheless it is remarkable what a good designer can do to the appearance of simple things, as any attentive reader to the productions of the Council of Industrial Design must know. A decision to appoint a consultant of this kind would not be popular in the Department, but outside it would, I believe, be well received.” (Allen, National Archives, 1957)
It appears, unfortunately, there was no such champion of design in Ireland, but here I’ll outline a few points around the genesis of the UK solution.
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What's wrong with this sign?
