Description: This dataset can be used for two purposes:1. Geocoding addresses in LA County – this file currently geocodes > 99.5% of the addresses in our test files (5,000 out of 8 million addresses) using the County’s geocoding engines.This last statement is important– the County splits the street names and addresses differently than most geocoders. This means that you cannot just use this dataset with the standard ESRI geocoding (US Streets) engine. You can standardize the data to resolve this, and we will be publishing the related geocoding rules and engines along with instructions on how to use them, in the near future. Please review the data fields to understand this information.2. Mapping street centerlines in LA County – note that the street types in this file are not fully updated yet. Use with caution.This file should NOT be used for:Routing and network analysisJurisdiction and pavement managementFor more information, click here to see the Data Portal Entry
Description: This is the road linework for Riverside County, including cities. This data layer replaces centerlines as the main cartographic and geocoding engine in analysis and mapping. The differences between this layer and TLMA's centerline data are as follows:This layer follows aerial photos as evidence of street existence.This layer tries to eliminate "paper streets", which appear in legal documents but does not exist in real life.Graded tracts with centerlines will be considered as "tentative" rather than full validated streets.This layer will contain address ranges.This layer will update city streets as needed.CLASS: Roads classification.1 - Interstate2 - Interstate Ramp3 - US Highway4 - US Highway Ramp5 - CA Highway6 - CA Highway Ramp7 - Expressway8 - Expressway Ramp9 - Major Road10 - Arterial Street11 - Collector Street12 - Residential Street13 - Tentative
Description: 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.
Copyright Text: SanGIS using information from documents recorded with the County of San Diego and the addressing authorities in the 18 cities in San Diego County.