Roads
Keywords: Roads, Transportation, Centerline
Published: 2004.05
Richmond GIS Layer Inventory
Contact Richmond GIS
 
Description
  Abstract: Represents "Roads," which are linear features positioned along the center of the Traveled Way between two at-grade intersections. (It is always a single line representation, even when a divided street is present, such as with a median)
  Purpose: Used for alternate street naming methodologies, and for alternate cartographic display of street centerlines as a single line, which is helpful for mapping at smaller scales, i.e. 1:30,000+. According to the City's GIS Data Quality Standards, Roads are of the highest priority feature type upon which thematic/administrative area boundaries are to be defined; they are used in topological constructs of features.
  Supplemental Information: Roads are not used for linear referencing or for street routing analysis; the City uses Carriageways for those purposes. Notes: Must only touch other Roads at their endpoints (nodes) unless the intersection is a bridge or tunnel. May be split to accommodate attribute changes (such as street name or address range). Generally follow the center of the median along divided roads. This may not always be the exact center of the traveled way, but it presents a neat appearance. Do not model traversability. Intersections of Road features will sometimes lie inside a median. Provide edges for many polygon feature classes. Relate to one or more Carriageways. Feature level metadata is provided in the EditBy and EditDate fields. Every feature in the GIS layer tracks who edited it, and when it was last edited. Detailed Road Documentation: http://www.richmondgov.com/GIS/documents/Centerlines_Documentation.pdf Documentation available internally to GIS professionals: Q:\Infrastructure\Geodatabase\Datasets\Centerlines\
 
Contact
  Custodian: Pravin Mathur
  Department: Public Works
  Position: GIS/Cityworks Manager
  Address: 900 E Broad St, 7th Floor
  City: Richmond
  State: Virginia
  Zip Code: 23219
  Email: Pravin.Mathur@richmondgov.com
 
Time Period of Content
  Date: 200611
 
Status
  Progress: Complete
  Update Frequency: As needed
 
Spatial Domain
  West Coordinate: -77.634961
  East Coordinate: -77.344780
  North Coordinate: 37.624046
  South Coordinate: 37.436664
 
Spatial Data Information
  Data Type: vector digital data
  Data Format: SDE Feature Class
  Data Projection: Lambert Conformal Conic
 
Access and Usage Information
  Access Constraints: none
  Use Constraints: All GIS layers and datasets are owned by the City of Richmond and can not be modified, re-distributed, and/or re-sold without a sub-licensing agreement. All guarantees of validity expire once a dataset leaves the City of Richmond firewall or physical premises. Acknowledgement of the City of Richmond GIS would be appreciated in products derived from these data.
 
Entity and Attribute Information
  Entity Name: vector.ric.tran_Road
  Entity Type: Feature Class
  Entity Count: 23608
  Entity Name: vector.ric.tran_RoadHasAddressRanges
  Entity Type: Relationship
  Entity Name: vector.ric.tran_RoadsHaveIntersections
  Entity Type: Relationship
  Entity Name: vector.ric.tran_RoadHasCarriageways
  Entity Type: Relationship
  Entity Name: vector.ric.tran_StreetNameHasRoads
  Entity Type: Relationship