The invention discloses a highway reorganization and expansion surveying method and relates to the fields of surveying and mapping and
highway engineering design. The method comprises the following steps of: laying a ground
target control point, and acquiring a three-dimensional space coordinate; performing vehicle-mounted movable
laser scanning measurement, and acquiring a vehicle-mounted measured
original data result; taking the three-dimensional space coordinate of the ground
target control point as a reference, performing
data processing on vehicle-mounted
point cloud in the vehicle-mounted measured
original data result, and acquiring a high-precision vehicle-mounted ground
point cloud; establishing a first
triangulation network for the high-precision vehicle-mounted ground
point cloud, and generating a highway pavement
digital elevation model; performing survey area vehicle-mounted
LIDAR aerial survey, and acquiring a vehicle-mounted measured
original data result; acquiring a
digital elevation model and a high-precision central
pile cross section map by using a 1:2000 measuring scale according to the vehicle-mounted measured original data result; and taking the vehicle-mounted measured original data result as the basis, and manufacturing
digital line graphs by using the 1:2000 measuring scale in a respective 300m range on two sides of the highway by integrating the vehicle-mounted ground point cloud and digital
aerial photos.