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Trafikanters fysiske formåen – Powerpointserie - NMF

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Sammenhæng mellem luminans og læsbarhedsindeks<br />

Carlssons resultater fra 2003<br />

Sammenholdt med tidligere<br />

Resultater (T. W. Forbes 1975<br />

og Sivak & Olson 1985)<br />

Legibility Index (m/cm)<br />

7<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

T. Forbes, white on green<br />

T. Forbes, white on blue<br />

P. Carlson, guide signs<br />

P. Carlson, street name signs<br />

Sivak & Olson<br />

0<br />

0.1 1 10 100<br />

luminance of letter or sign L (cd/m2)

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