Patent ID: 7469479

Claim:
A method for measuring tracks/roadways in relation to a survey plan of the track/roadway which contains a desired position of the track/roadway in relation to an absolute system of coordinates, and whereby a measuring platform is rolled along a track and arranged thereon is an inertia platform which is initialized and/or calibrated at the beginning of the measuring and aligned in relation to the system of coordinates, and this inertia platform detects during travel of the measuring platform the respective positions of the measuring platform in relation to the system of coordinates wherein the position data of the inertia platform are checked automatically and periodically in relation to the system of coordinates and any deviations in relation to the system of coordinates are detected as correction values and used for a correction of the measured data and/or the measured actual position of measuring platform, wherein the measuring platform is equipped with a satellite-supported navigational system, wherein position data of the inertia platform are compared to the position data of this navigational system, and whereby, when deviations are detected among this position data, corrected position data are calculated and stored as correction values.