trails_bcpos

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How should this data set be cited?

   Dutlinger, Meredith, 1-9-2008, trails_bcpos.

   Online Links:

   • \\gis\pcshare\avdata\thematic\trails_bcpos.shp

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -105.539817

   East_Bounding_Coordinate: -105.070114

   North_Bounding_Coordinate: 40.261172

   South_Bounding_Coordinate: 39.913392

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: unknown

   Currentness_Reference: publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: vector digital data

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • String (467)

   2. What coordinate system is used to represent geographic features?

      The map projection used is Lambert Conformal Conic.

      Projection parameters:

      Standard_Parallel: 39.716667

      Standard_Parallel: 40.783333

      Longitude_of_Central_Meridian: -105.500000

      Latitude_of_Projection_Origin: 39.333333

      False_Easting: 3000000.000316

      False_Northing: 999999.999996

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000000
      Ordinates (y-coordinates) are specified to the nearest 0.000000
      Planar coordinates are specified in survey feet

      The horizontal datum used is D_North_American_1983_HARN.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.
      

7. How does the data set describe geographic features?

   trails_bcpos

   FID

   Internal feature number. (Source: ESRI)

   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI)

   Coordinates defining the features.

   FEATURE_TY

   Type of trail, determined mostly by it's regulations and it's role in the trail system. (Source: Meredith Dutlinger)

   Value	Definition
   1	Hiking Trail
   2	Multiuse Trail
   3	Access Trail
   4	Sidewalk

   LOCATION

   The location of the trail, usually by the BCPOS property that the trail is on. (Source: Meredith Dutlinger)

   FEATURE_NA

   Name of the trail. Access trails, Sidewalks, and Social Trails do not have names. (Source: Meredith Dutlinger. Pascale Fried is responsible for naming conventions.)

   SURFACE_TY

   The material that the trail is made of. (Source: Meredith Dutlinger)

   Value	Definition
   Ashpalt
   Boardwalk	Wood walkway over wet area
   Concrete
   Crusher Fines
   Natural	Natural ground; no surfaces added
   Road Base	Mixture of gravel and dirt

   WIDTH

   Width of the trail segment, in feet. (Source: Meredith Dutlinger)

   SOURCE

   The source of the spatial data. (Source: Meredith Dutlinger)

   Value	Definition
   cad	AutoCad file
   cff	cartographic feature
   dig	Digitized
   gps	Global Positioning System

   SRC_YEAR

   The year that the data was collected from the source. (Source: Meredith Dutlinger)

   DSG

   Value	Definition
   TR	Trail
   ST	Social Trail
   SW	Sidewalk

   USE

   Trail is open or closed to the public. (Source: Meredith Dutlinger)

   Value	Definition
   Public	Trail is open to the public.
   Closed	Trail is closed to the public.

   STATUS

   Trail is existing or proposed. (Source: Meredith Dutlinger)

   Value	Definition
   existing
   proposed	The trail has been approved by the BOCC and is in final design or construction phases.

   TR_MILEAGE

   Total mileage of the trail segment. All values will be the same for trails that have the same name. (Source: Meredith Dutlinger)

   ELEV_GAIN

   DIFFICULTY

   ADA

   OWNER

   The owner of the trail.

   Value	Definition
   IGA	Intergovernmental Agreement; Multiple owners
   Audobon Society	Audobon Society
   Boulder	City of Boulder
   County	Boulder County
   Private	Private ownership
   Superior	Town of Superior
   Louisville	City of Louisville
   Lafayette	City of Lafayette
   ROW	The trail is located within the County Right-of-Way
   GID	Gunbarrel Improvement District
   State	State Parks

   MAINTAINER

   Responsible for Maintenance of the Trail (Source: Meredith Dutlinger)

   Value	Definition
   County	Boulder County
   Boulder	City of Boulder
   NA	Not Maintained
   Longmont	City of Longmont
   State	State Parks
   Lyons	Town of Lyons
   Lafayette	City of Lafayette
   Louisville	City of Louisville
   IGA	Intergovernmental Agreement
   HOA	Homeowners Association

   PEDS

   Pedestrians allowed on the trail. (Source: Meredith Dutlinger)

   BIKES

   Bikes allowed on the trail. (Source: Meredith Dutlinger)

   HORSES

   Horses allowed on the trail. (Source: Meredith Dutlinger)

   DOGS

   Dogs allowed on the trail. (Source: Meredith Dutlinger)

   COMMENTS

   TYPE

   The legend for the Feature_Type (Source: Meredith Dutlinger)

   Value	Definition
   Hiking Trail	No bicycles allowed on the trail.
   Multiuse Trail	Bicycles allowed on the trail.
   Access Trail	Small trail that leads to the main trail, a restroom, a picnic shelter, etc.
   Sidewalk	Typically in a County ROW, but may be part of an integral trail system.

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Meredith Dutlinger

2. Who also contributed to the data set?

3. To whom should users address questions about the data?
   Meredith Dutlinger
   Boulder County Parks and Open Space
   GIS Technician
   

   303-678-6356 (voice)
   303-678-6177 (FAX)
   mdutlinger@co.boulder.co.us
   

   Hours_of_Service: 9-5

Why was the data set created?

To provide accurate spatial and tabular data for all trails that are owned and/or operated by Boulder County.

How was the data set created?

1. From what previous works were the data drawn?

2. How were the data generated, processed, and modified?

   (process 1 of 3)

   Dataset copied.

   Data sources used in this process:

   • \\PA113946\F\dec7\Boulder_County_Trails.mdb

   (process 2 of 3)

   Dataset copied.

   Data sources used in this process:

   • \\gis\pcshare\gispa\pos_gisdata\geodatabases\Boulder_County_Trails.mdb

   (process 3 of 3)

   Dataset copied.

   Data sources used in this process:

3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?

   Many meetings were held with Operations and Law Enforcement staff to ensure that attribute values were agreed upon and corrected from the previous dataset. Niwot and Rock Creek/Coal Creek are the most complex trail systems since there are multiple entities involved in the ownership and maintenance of individual trail segments. The data is accurate to the best of the knowledge by BCPOS staff.

2. How accurate are the geographic locations?

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

5. How consistent are the relationships among the observations, including topology?

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: There are no access constraints.

Use_Constraints:

The user must have a GIS program in order to view and use the data.

1. Who distributes the data set?[Distributor contact information not provided.]

2. What's the catalog number I need to order this data set?

   Downloadable Data

3. What legal disclaimers am I supposed to read?

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	Size: 0.293

   • Cost to order the data:

Who wrote the metadata?

Dates:

Last modified: 20-Mar-2008

Metadata author:

REQUIRED: The organization responsible for the metadata information.
c/o REQUIRED: The person responsible for the metadata information.
REQUIRED: The city of the address., REQUIRED: The state or province of the address. REQUIRED: The ZIP or other postal code of the address.

REQUIRED: The telephone number by which individuals can speak to the organization or individual. (voice)

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:

• <http://www.esri.com/metadata/esriprof80.html>