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Mapping Specifications |
Please Note:Version 3.6 of the Specification has now been superseded, and is included for historical reference purposes only. Please refer to the current specifications i.e NTDB & NTMS Specifications Version 4.0 (250K & 100K). Version 3.6 GEODATA & NTMSSpecifications for Topographic Maps and DataTopographic Data and Map SpecificationsThe Topographic Data and Map Specifications presently in use are intended for 1:250 000 and 1:100 000 products where a GEODATA tile and a hard copy map are produced in a single process. Please note that these specifications are relevant to maps and data in production from 1996 onwards, using entirely digital methods. Products produced before 1996 and a limited number of manually updated maps produced after this date follow previous specifications, which are not available digitally. These Specifications are used in the production and revision of:
About the SpecificationSpecifications SourceThe latest version of the Topographic Data and Map Specifications is a result of an integration of the most recent 1:100 000 Specifications into Version 3.5 of the 1:250 000 Specifications for topographic data and map production. The two Specifications used to create the new Version 3.6 are named:
These individual specifications are now superseded and replaced by Version 3.6. Aim of the SpecificationsThese specifications set out the standards for the revision and production of Geoscience Australia topographic data and maps at 1:100 000 and 1:250 000 scale. The TOPO-250K and TOPO-100K GEODATA products are digital spatial data derived primarily from topographic map products, with supplementary revision from a variety of sources. The products are suitable for use in Geographic Information Systems. The revised 1:250 000 and 1:100 000 scale NATMAP's produced using these specifications are hard copy topographic maps produced primarily to support environmental and resource planning, emergency management planning and land navigation. These maps form part of the National Topographic Map Series (NTMS). Specifications DescriptionThe Topographic Data and Map Specifications are in three sections, supported by sixteen appendices. They are presented in two ways:
Specification ChangesThe specifications are subject to quality assurance procedures implemented by Geoscience Australia. Controlled copies of this specification will be maintained by Geoscience Australia. The specifications are subject to continuous improvement. Amendments to the specifications will be issued as required. As a result of amendments being made to the specifications over time, some differences in the respective map and data products may be evident between subsequent versions of the specification. Suggestions for improvements to the specifications and feedback on their use are welcome. These suggestions or comments on the map or data product can be emailed to: mapfeedback@ga.gov.au [an error occurred while processing this directive]Use of the Technical SpecificationsThe Topographic Data and Map Specifications are made up of three sections. Section 1 specifies the GEODATA products. GEODATA is digital spatial data derived from topographic map products. The data is designed to be suitable for use in Geographic Information Systems. Key characteristics of GEODATA are national consistency and assured quality. Section 2 specifies the National Topographic Map Series (NTMS) products. NTMS maps are hard copy topographic maps produced primarily to support environmental and resource planning and for navigation. As for GEODATA, key characteristics of the NTMS products are national consistency and assured quality. Section 3 specifies the working database used to store the information needed to produce the GEODATA and NATMAP products, material to be supplied and the submission and testing process. A number of appendices support the three sections. Sections 1 and 2 are designed to allow use outside this combined specification. However, for production, all sections of the specification should be read together, as specifications for one product impact on the others. Similarly, the specification covers both 1:100 000 and 1:250 000 scale products. Elements specific to one scale or the other are identified in the specification. Appendix A - Data Dictionary, gives information on feature classes including cross references to enable the correct feature class to be selected on secondary tables and on the symbols to be used on the maps. Users should always refer to the Entity Cross Reference list in Appendix A as a first step, to ensure the entity they are dealing with is listed, as many entities are known by different names by different individuals and organisations in different States. The column titled 'Commonly used term' of the Entity Cross Reference lists the known names for features while the 'Feature Class' column guides the user to the name used for the feature in the specifications. [an error occurred while processing this directive]Full DocumentationThe most recent version of the Topographic Data and Map Specifications can be found in the Version 3.6 July 2004 [PDF 23MB] document.
Alternatively the specifications can be downloaded or viewed in the following sections. Contents
These files are in Adobe Acrobat PDF format Copyright: The copyright of these specifications is the property of the Commonwealth of Australia. © 2004 |
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