This is a subset of Maryland's centerline roads originally derived from the "es_centerlines" layer. Urban3 utilized NOAA's SLR polygons to estimate the length of roads that may be damaged/inaccessible after each 1-foot increment of sea level rise. Link to NOAA metadata here: https://www.fisheries.noaa.gov/inport/item/48106

Link to centerline metadata: https://www.arcgis.com/sharing/rest/content/items/7d88159091854e55a3e6f237fcd45c1a/info/metadata/metadata.xml?format=default&output=html

Topic Categories: Centerline roads, sea level rise

Dates: Original data was retrieved from MD DOT in October 2024. All modifications by Urban3 were also completed in October 2024.

Contact Information: Urban3, phillip@urbanthree.com

Contact Role: Chief Analyst

Update Frequency: Dataset was last updated in October 2024 and will not be updated by Urban3 hereafter.

Spatial Extent:

Top 4,774,008.943400 m

Bottom 4,573,278.761300 m

Left -8,501,517.829000 m

Right -8,356,020.441100 m

Min Z 0.000000

Max Z 0.000000

Min M NaN

Max M NaN

Spatial Resolution and Scale:

Min Y -30,241,100.00 Meters

Max Y 900,689,684,374.10 Meters

Min X -20,037,700.00 Meters

Max X 900,699,887,774.10 Meters

Min Z -100000

Max Z 900719825474.099

Min M -100000

Max M 900719825474.099

XY Resolution 0.0001 Meters

Z Resolution 0.0001

M Resolution 0.0001

XY Tolerance 0.001 Meters

Z Tolerance 0.001

M Tolerance 0.001

Spatial Reference:

Projected Coordinate System WGS 1984 Web Mercator (auxiliary sphere)

Projection Mercator Auxiliary Sphere

WKID 3857

Previous WKID 102100

Authority EPSG

Linear Unit Meters (1.0)

False Easting 0.0

False Northing 0.0

Central Meridian 0.0

Standard Parallel 1 0.0

Auxiliary Sphere Type 0.0

Source and Collection Methods: Data originates from Maryland DOT (2024)

Access Constraints: any use and publication of this data must credit Urban3. The Spatial Data, and the information therein, (collectively the "Data") is provided "as is" without warranty of any kind, either expressed, implied, or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the Urban3 be liable for direct, indirect, incidental, consequential or special damages of any kind. Urban3 does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data, nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland and Urban3 in the metadata.

Provenance: Data originates from Maryland Department of Planning and Maryland Assessor (2024). Urban3 modified the dataset to correct for parcel duplicates. Additional fields were created for economic and sea level rise analyses.

Known Limitations or Disclaimers: All fields added by Urban3 may not be modified by an external organization.