Map the location of the pipeline and its ancillary facilities as well as the terrain and geomorphology around the pipeline and the terrain and geomorphology around the stations and yards. Investigate the environment along the pipeline and around the stations and yards, and form the vectorization results of the line strip map and the terrain mapping and geomorphology results around the stations and yards. Responsible for the integration of pipeline surveying and mapping results into the system, and report the surveying and mapping results to the local planning and construction authorities for the record.