Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 5 · column 2 of 9 · from the scan, no model involved

perimented with different pattern variations. Virginia, however, was the first state to conduct a formal evaluation of the effects prior to statewide implementation of a marking change.
A sampling of more than 1,100 motorists' opinions after travel over recently resurfaced rural highways showed that % per cent of them hadn’t noticed the change in pattern. Of those who had, 66 per cent preferred the 10-30 proportion, 10 per cent the 15-25, and 24 per cent expressed no preference.
95.6%