Hi-rail Mobile LiDAR operations began utilizing a MBTA pilot who was in continuous communications with dispatcher to integrate the hi-rail vehicle track movements across revenue and non-revenue tracks, and through each yard facility. The hi-rail Mobile LiDAR data acquisition was completed in 4 weeks by the two crews and the MBTA pilots assigned to the task. The 3D feature extraction work started with extracting all the individual tracks at 1-foot intervals, including the “switch and frog” points. Point files for each track were created so that the design engineers could perform linear regression to define the track alignments and identify all the track “cardinal” points. Upon completion of the track work extraction 3D extraction work began on all other planimetric features to complete the base mapping. Features including guard rail, restraining rail, trip stops, impedance bonds and signals included in the project’s geospatial data base. The geospatial data base was utilized the existing track alignment data and the track feature locations to populate station and offsets for all track side features. During the creation of the track charts the database was populated with all the alignment geometry and feature locations labeled with station and offsets.