Road structure – process – or apparatus – Traffic director – Vibration inducing member
Patent
1988-07-14
1989-03-28
Massie, Jerome W.
Road structure, process, or apparatus
Traffic director
Vibration inducing member
404 16, E01F 906
Patent
active
048158909
ABSTRACT:
A low level traffic direction pavement marker is secured, at spaced distances with others, to early alert, inform, and guide a motorist, via contrast, emphasis, and directional position, in his or her correct vehicle maneuver in a special channelization. An elongated body less than an inch high, four inches wide, and available in lengths of 6, 8, 10, or 12 inches, of elliptical top shape, has: a planar bottom surface for receiving a bonding material; a curved top surface sloping downwardly in all directions, from a highest central portion; a surrounding continuous side surface, angled inwardly at 60 degrees, from the bottom surface, and extending to the curved top surface; a reflective material optionally positioned on this surrounding continuous side surface; a transition shoulder extending about the entire bottom surface from the planar bottom surface to the surrounding continuous side surface; and a transition shoulder extending about the entire curved top surface from the curved top surface to the surrounding continuous side surface, these shoulders being effective in protecting the reflective material; and a transversely arranged group of three straight lines having a common central crossing, presented on the highest central portion, with one line being perpendicular to a longitudinal axis, and the other two lines being at respective opposite angles from the perpendicular line, used in arranging these pavement markers to indicate either a division of driving lanes, or a change in direction to the right or left.
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Massie Jerome W.
Mattern Jr. Roy E.
Smith Matthew
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