Kern Council of Governments
===========================

Projection Information
----------------------

Projection:	Lambert Conformal Conic
Datum:		NAD27
Zone:		California V
Spheroid:	Clarke 1866
Units:		Feet US
Parameters:
	1st standard parallel				34.03333333
	2nd standard parallel				35.46666667
	central meridian				-118
	latitude of projection's origin			33.5
	false easting (feet)				2000000
	false northing (feet)				0



All files have been projected to the above projection including the
Valley Wide GIS files.

General Overview
----------------

Kern Council of Governments names its shape file directories based on
a modified Spatial Data Standard (SDS) developed by the CADD/GIS
Technology Center.

http://tsc.wes.army.mil/

SDS uses a hierarchy of directories to classify data by type.  The
broadest classifications are called entity sets.  Some examples of
entity sets are cadastre, hydrology, and transportation. From this
level, each entity set is broken down into entity classes.  Some
examples of entity classes are transportation_air,
transportation_railroad, and transportation_vehicle.  Entity classes
are further divided into specific types of data.  For example, the
transportation_vehicle entity class contains entity types such as road
centerline, road segment, and parking lot.

Once data is placed in an entity type and becomes an entity, a special
naming convention is used.  The entity's name references the entire
directory structure that it is a part of.  For example, a road
centerline data set would be named trvehrcl.  The "tr" refers to the
transportation entity set, the "veh" refers to the
transportation_vehicle entity class, and the "rcl" refers to the road
centerline entity type.  Further modifiers can be added to the entity
name to distinguish different data sets of similar types.  The
modifiers are not part of the SDS standard, but Kern COG has found
them helpful.


	e.g.  trvehrcl_kco_strt_cnst_ctrns_99

	trvehrcl = SDS entity type name for ArcView/ArcInfo
		_kco = real world location of data (Kern County)
			_ strt = modifier describing data (state route) - optional
				_cnst = secondary modifier (under construction) - optional
					_ctrns = source of data (Cal Trans) 
						_99 = year of data - if known

A copy of the SDS browser with a searchable listing of the standard is available at:

http://tsc.wes.army.mil/products/TSSDS-TSFMS/tssds/html/