On The Results of a Workshop on Generic Data Model for Linear Referencing Systems
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates

to

Document Data
Library
People
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page

i

On The Results of a Workshop on Generic Data Model for Linear Referencing Systems

Filetype[PDF-845.66 KB]


English

Details:

  • Creators:
  • Subject/TRT Terms:
  • Resource Type:
  • Geographical Coverage:
  • Corporate Publisher:
  • Abstract:
    The significance of linear referencing methods and systems to transportation applications has been recognized for some time. A recent executive-level commitment to the concept of a National Spatial Data Infrastructure (Mapping Science Committee, 1993) has spurred interest in the development of standards and common models for data. The Ground Transportation Subcommittee of the Federal Geographic Data Committee has recommended that a linear referencing system be incorporated in standards efforts. On August 6, 1994, forty-two transportation professionals, systems developers, and academics came together in a workshop in Milwaukee, Wisconsin with the objective of preparing a draft consensus conceptual data model, at the entity- relationship level, for linear referencing systems. Recognizing that it was not feasible to derive a data model that would meet all the needs of all application areas, a generic model was sought that met common needs and formed a core that could be extended as needed in specific application areas. The resulting draft data model, in object modeling form, associates transportation data with multiple cartographic representations and multiple network models through a single linear datum. The datum links the data model to real-world features and provides the referencing space that enables transformations among linear referencing methods, networks, and cartographic representations at various scales. The data model supports a set of fundamental operations that cause data to flow between the database world and the real world. The data model as presented is intended to represent the requirements for a linear referencing model - it is not intended as a specification.
  • Content Notes:
    Note: In order to continue to make this intellectual content available to the public, the National Transportation Library (NTL) copied the contents of this document from its original HTML file. The link to the original HTML file, which was last accessed on 2020-07-29, is https://ntlrepository.blob.core.windows.net/lib/4000/4200/4256/report.html. NTL has preserved this content as it was presented in the HTML file, and has checked this document to ensure as complete a representation as possible. Questions about this file can be directed through the NTL Ask a Librarian service at: https://transportation.libanswers.com/form.php?queue_id=1810
  • Format:
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at rosap.ntl.bts.gov