System devised by J. H. Holmes and Co which enables pedestrian to exercise some control over vehicular traffic along road over which he wishes to cross; control is effected by pressing button.
Pedestrian-actuated traffic signals
Engineering
Engineering ; 138 , n 3589
1934
Article (Journal)
English
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Pedestrian protection under traffic actuated control
Engineering Index Backfile | 1931
|New pedestrian-vehicular traffic control signals
Engineering Index Backfile | 1934