Datum and Coordinate System Vertical Orthometric Height Datum: NAVD88 Geoid Model: GEOID09 Horizontal Coordinate System: Ohio State Plane, South Zone Map Projection: Lambert Conformal Conic Reference Frame: NAD83(CORS96) Ellipsoid: GRS80 Combined Scale Factor: 1.0000000000 Units: All units are US Survey Feet. Table 6.1. LiDAR dataset georeferencing Parameters Study Area Test Areas SR 666 SR 666 2008 2012 No. of DEM points 216,182 Point spacing 1.8 / 54 1.5 / 46 2.6/81 2.1/65 3.8/115 2.6/78 2.8/85 2.3/69 [ft/cm] Density [ft-2/m-2] 0.3 / 3.3 0.4 / 4.4 0.1/1.5 0.2/2.4 0.1/0.8 0.2/1.6 0.1/1.4 0.2/2.1 Date of Survey 2/4/14 1/2/14 3/24/14 2/28/14 2/22/14 12/30/08 4/5/12 Reference Yes Yes No No No No No No No reference, but Slide Slide Slide Slide Slide ODOT indicates N/A N/A N/A Repair Repair Repair Repair Repair activity Accuracy RMS hard N/A N/A N/A N/A N/A N/A 0.15 / 4.6 N/A surface
Datum and Coordinate System Vertical Orthometric Height Datum: NAVD88 Geoid Model: GEOID09 Horizontal Coordinate System: Ohio State Plane, South Zone Map Projection: Lambert Conformal Conic Reference Frame: NAD83(CORS96) Ellipsoid: GRS80 Combined Scale Factor: 1.0000000000 Units: All units are US Survey Feet. Table 6.1. LiDAR dataset georeferencing Parameters Study Area Test Areas SR 666 2008 SR 666 2012 No. of DEM points 216,182 Point spacing [ft/cm] 1.8 / 54 1.5 / 46 2.6/81 2.1/65 3.8/115 2.6/78 2.8/85 2.3/69 Density [ft-2/m-2] 0.3 / 3.3 0.4 / 4.4 0.1/1.5 0.2/2.4 0.1/0.8 0.2/1.6 0.1/1.4 0.2/2.1 Date of Survey 12/30/08 4/5/12 2/4/14 1/2/14 3/24/14 2/28/14 2/22/14 Reference Yes Yes No No No No No No No reference, but ODOT indicates activity N/A N/A Slide Repair Slide Repair Slide Repair Slide Repair N/A Slide Repair hard surface RMS 0.15 / 4.6 N/A N/A N/A N/A N/A N/A N/A Accuracy
134609_Draft%20Final%20Report.docx