| Intersection_Ties | |
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Data format: Shapefile File or table name: Intersection_Ties Coordinate system: Lambert Conformal Conic Theme keywords: land surveying, Intersection Tie, monumentation, monument |
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Abstract:
These points are a graphical representation of monumentation activity, filed as Official Intersection Ties. Intersection ties contain data that was not included in a recorded tract or parcel map. |
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Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.
These points are a graphical representation of monumentation activity, filed as Official Intersection Ties. Intersection ties contain data that was not included in a recorded tract or parcel map.
The data set was created to provide a spatial index for land survey record research.
An individual point references possible set / found tags within a radius of 50-100 feet. Some Intersection Ties reference several intersections or areas farther apart then the 50-100 foot radius. In these instances another point is represented to indicate the monumentation that is included in the same official document, but goes beyond the scope of the 50-100 foot radius. In this case the point is identified as the same Intersection Tie Record #. Points were snapped to either the County Assessor's Roads dataset or the KNOPF Streets dataset. For more information, please see the Intersection Ties page at http://www.countyofsb.org/pwd/surveyor/pwd_itlookup.aspx
publication date
While every effort has been made to ensure that this data is complete and reliable, the Office of the County Surveyor does not assume liability for any damages caused by any errors or omissions in the data, nor as a result of improper use of the dataset. The dataset is not intended to obtain coordinate values, distances or bearings.
123 East Anapamu Street Stop 1
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Santa Barbara County, Public Works Department, Surveyor Division
Valid Values: 10,000 - 14631 and alphabetical tract names: Berglund Terrace thru Western_Village_No.2
The number records in the shapefile were compared to the amount of records in the tabular index (Excel) on 1/5/2010. All records were present in both the shapefile and the tabular index.
The dataset is registered to the County Assessor's Cadastral Parcel Landbase dataset. The County assessor's cadastral Parcel Landbase dataset has no established level of accuracy and is based on printed Assessor's Map Books. Due to the nature of its construction the County Assessor's Cadastral Parcel Landbase dataset has varying degrees of positional precision. It is useful to distinguish between positional accuracy and positional precision. In the Assessor's Cadastral Parcel Landbase feature class, the former refers to the relative accuracy of a given group of spatially related parcel polygons. In other words, for any given polygon, are the neighboring polygons in a proper or accurate relationship spatially with our subject polygon? Subjectively we find that the Assessor's Cadastral Parcel Landbase feature class positional accuracy is good to excellent. On the other hand, positional precision refers to an actual ground location and how well any determinable cadastral point in the dataset is related to this established ground location. As stated previously, this will vary depending on its general location. In those areas which were initially spatially referenced to the Flood Control Topo Map Sets, which are the areas of Santa Barbara city, the Goleta valley, the Santa Ynez valley, and the Santa Maria valley, there is consistently a positional horizontal error of between 3 and 6 feet. The lower figure would be within the city blocks themselves, and the higher figure in the areas outside the numbered orthogonal blocks. Outside of this control set, the nature of the precision may be quite varied. In the unpopulated areas outside the control of the Knopf GPS road set, there may be variances of more than 100-200 feet. For the majority of the populated areas, any horizontal positional precision would be between these general values, and more closer to the lower side given a reasonable distance and tie-in to the Knopf GPS road set. Ultimately it must be remembered that for many of the more antique legal descriptions that might reference, say, a rancho line, that a precise location of any given cadastral point is by its nature an abstraction unless referenced by a modern record of survey, and even then there may be serious discrepancies in the various surveys that are available. The southern Tepusquet Rd area is a prime example, where it would take a survey and the signed acquiescence of all of the affected property owners to truly call that area spatially precise in cadastral terms. "Notice: Assessor Parcels are for tax assessment purposes only..." In general, Rancho areas with less monuments and fewer records of measured distances are less accurate, whereas urban areas with a higher density of recorded monuments and therefore more repeated distance measurements are more accurate.
Survey-collected GPS coordinate data from a small sample of monuments were compared to corresponding vertices in the County Assessorss Cadastral Parcel Landbase (Assessor's Parcel Layer). Verifying Survey data was obtained from horizontal positions derived by GPS observations holding Continuously Operating Reference Stations (CORS) or Control Points fixed as shown in Record of Survey Books, based on California Coordinate System 1983 (CCS83) 1991.35 epoch. The County Assessor's Cadastral Parcel Landbase dataset (Assessor's Parcel Layer) was obtained from the County Assessor.
8.5"×11"
Metadata imported.
Internal feature number.
ESRI
Feature geometry.
ESRI
Type of Recorded Map
live link to scanned image
Category of record
Tract or Parcel number or name with unit
HTML formatted hyperlink
Phase or Unit
Book and Page of corresponding recorded map
Date the record was filed
Description
See Use Contraints.
COUNTY SURVEYOR
123 E ANAPAMU ST STOP 1
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