Vicmap Hydro - Navigation Point

dataset: HY_NAVIGATION_POINT
This layer is part of Vicmap Hydro and contains point features delineating hydro/navigation features. Includes; Buoys, Beacons, Rocks & Wrecks.
 
Citation proposal Citation proposal
(2020)

Vicmap Hydro - Navigation Point

Department of Transport and Planning
 

Description

Title
Vicmap Hydro - Navigation Point 
Alternate title
HY_NAVIGATION_POINT 
Resource Type
Dataset  
Purpose
Vicmap Hydro provides an accurate representation of natural and man made Hydrographic features across Victoria, at a capture scale of 1:25,000. It is used in a variety of applications, particularly in emergency services, natural resource management, planning and development, and digital map publication. 
Supplemental Information
Related Documents: None www.delwp.vic.gov.au/vicmap 
Status
Completed  
 
 

Temporal

Time period
1999-01-012000-12-31 
 
 

Spatial

Spatial representation type
Vector  
Horizontal Accuracy
25m  
Code
4283 


 

 

Maintenance

Maintenance and update frequency
Irregular  
 
 

Format

 
 

Contacts

  Point of contact

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.
 
 

Keywords

Topic category
  • Elevation
  • Inland waters
  • Environment
  • Farming
  • Geoscientific information
 
 

Resource Constraints

Use limitation
. 
Classification
Unclassified  
 
 

Lineage

Statement
Dataset Source: The line work and points were derived from the Vicmap Digital Topographic (VDT) map base coordinated by LIG. VDT evolved from Victoria's printed 1:25,000 Topographic Map Series program together with the need to supply a control framework for the creation of the rural Digital Cadastral Mapbase. The capture scale is 1:25,000 Statewide and the coverage, except for minor border issues is also statewide. Dataset Originality: Primary 
Description
Collection Method: Conversion of existing mapping, digital stereo capture 
Description
- Conversion of existing mapping - compilation conversion 30% and repromat conversion 50% - digital stereo capture - 20% -The majority of the conversion of existing mapping and approximately 30% of the digital stereo capture were outsourced to private contractors and the remainder was captured in house. Contractor's primarily scanned and vectorised existing repromat with a small amount of hand digitising done in some instances. 
 
 

Metadata Constraints

Classification
Unclassified  
 
 

Quality

Attribute Quality
Comments
The allowable error in attribute accuracy ranges between a 1% allowable error to 5% error. For this product attribute accuracy ranges between a 1% to 5% error. For this product attribute accuracy is a measure of the degree to which features and attribute values of spatial objects agree with the information on the source material. 
Positional Accuracy
Comments
The planimetric accuracy attainable will be the sum of errors from three sources:the positional accuracy of the source material, errors due to the conversion process, errors due to the manipulation process. For topographic base derived data this represents an error of 8.3m on the ground for 1:25,000 data. A conservative estimate of 10m for the standard deviation will be used in any data quality information. Alternate and equal ways of expressing this error are: not more than 10% of well-defined points will be in error by more than 16 m. The worst case error for the data is +/- 30 m. For vertical positional accuracy of points determined from contours there is an expectation that the elevation accuracy (standard deviation) will be half the value of the contour interval. 
Conceptual Consistency
Comments
The allowable error in attribute accuracy ranges between 1% to 5% error. Logical consistency is a measure of the degree to which data complies with the technical specification. The test procedures are a mixture of scripts, microstation MGE program and on-screen visual checks. 
Missing Data
Comments
The dataset does not contain all Navigation points in the state. However there is no intention to capture all the points. In this sense the dataset is complete. 
Excess Data
 
 

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