| 摘要 |
A method and apparatus for the surveying of road length, road width and height, and ascent and incline of the road, wherein approximately equally spaced measuring marks are applied onto the road surface along the axis of the road, which measuring marks are then approached by a surveyor vehicle and the actual straight line distance between the measuring marks is exactly measured by a gauging system provided on the surveyor vehicle. The measuring marks are scanned by video cameras measurably adjustable on X, Y tables or are scanned by electromagnetic sensors while the position of the video cameras or sensors on the serveyor which can exactly be measured. For height measurements, a vertical reference line is defined by means of perpendicular bars and laser devices and the distance thereof relative to the road surface is measured at locations, the positions of which can exactly be defined by the video cameras. The measured data are stored digitally and/or as monitor images, on magnetic tapes.
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