This dataset comprises road centerlines for all roads in San Diego County. Road
centerline information is collected from recorded documents (subdivision and
parcel maps) and information provided by local jurisidictions (Cities in San Diego
County, County of San Diego). Road names and address ranges are as designated
by the official address coordinator for each jurisidcition. Jurisdictional information
is created from spatial overlays with other data layers (e.g. Jurisdiction, Census
Tract).The layer contains both public and private roads. Not all roads are shown on
official, recorded documents. Centerlines may be included for dedicated public
roads even if they have not been constructed. Public road names are the official names as maintained by the addressing authority for the jurisdiction in which the
road is located. Official road names may not match the common or local name
used to identify the road (e.g. State Route 94 is the official name of certain road
segments commonly referred to as Campo Road).Private roads are either named
or unnamed. Named private roads are as shown on official recorded documents or
as directed by the addressing authority for the jurisdiction in which the road is
located. Unnamed private roads are included where requested by the local
jurisidiction or by SanGIS JPA members (primarily emergency response dispatch
agencies). Roads are comprised of road segments that are individually identified by
a unique, and persistent, ID (ROADSEGID). Roads segments are terminated where
they intersect with each other, at jurisdictional boundaries (i.e. city limits), certain
census tract and law beat boundaries, at locations where road names change, and
at other locations as required by SanGIS JPA members. Each road segment
terminates at an intersection point that can be found in the
ROADS_INTERSECTION layer.Road centerlines do not necessarily follow the
centerline of dedicated rights-of-way (ROW). Centerlines are adjusted as needed
to fit the actual, constructed roadway. However, many road centerline segments
are created intially based on record documents prior to construction and may not
have been updated to meet as-built locations. Please notify SanGIS if the actual
location differs from that shown. See the SanGIS website for contact information
and reporting problems (http://www.sangis.org/contact/problem.html).Note, the
road speeds in this layer are based on road segment class and were published as
part of an agreement between San Diego Fire-Rescue, the San Diego County Sheriff's Department, and SanGIS. The average speed is based on heavy fire
vehicles and may not represent the posted speed limit.
