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Linguistic landscape refers to the visibility and salience of languages on public and commercial signs in agiven territory or region. It is proposed that the linguistic landscape may serve important informational and symbolic functions as a marker of the relative power and status of the linguistic communities inhabiting the territory. Using the theoretical framework of ethnolinguistic vitality, it was hypothesized that the experience of the linguistic landscape by members of a language group may contribute to social psychological aspects of bilingual development. Factor analysis results show that the linguistic landscape emerges as a distinct factor separate from other measures of linguistic contacts. This factor was an important correlate of subjective ethnolinguistic vitality representing perceptions of the vitality of the in-group language in various domains. The study also found relations between the Linguistic Landscape factor and degree of in-group language use, especially in institutional settings, suggesting a 'carryover effect" of the linguistic landscape on language behavior.
Landry et al. (1997) studied this question.