California Railroad Commission's statistical investigation discloses steady increase in casualties; grade crossings classified as to type of protection; relationship between automobile registrations and casualties at grade crossings; frequency of accidents at various kinds of crossings; experimental automatic-gate installations; character of grade-crossing collisions; hourly variation in grade-crossing accidents; future trend in protection.
Analysis of grade crossing accidents
Ry. Age
Railway Age ; 86 , n 25
1929
7 pages
13 Figs.
Aufsatz (Zeitschrift)
Englisch
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