国内外评定路面工程质量一般都以强度、平整度和粗糙度三个特性指标来衡量。其中平整度与行车速度、行车安全、车辆使用寿命和乘客的舒适等方面有着直接关系。因此,路面平整度就成了土木工程师和汽车工程师共同关心的课题。测量路面平整度的仪器,国内外种类很多,一般不外乎两大类。一类是测量路面真 The quality of pavement engineering both at home and abroad is generally measured by the three characteristics of strength, flatness and roughness. One flatness and driving speed, traffic safety, vehicle life and passenger comfort and so has a direct relationship. As a result, road roughness has become a common concern for civil engineers and automotive engineers. Measuring the roughness of the road surface of the instrument, many types at home and abroad, generally no more than two broad categories. One is to measure the road surface really