| 摘要 |
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. |
