Geoplan Consultants has recently completed a pilot project for the New Brunswick Department of Transportation (NBDOT) in which a GPS receiver was integrated into a laptop computer based field inventory system for the collection of highway inventory features. The system also incorporated an electronic Distance Measurement Instrument (DMI) to record linear offset measurements. A commercial data collection software package was chosen for the study and configured for the data collection requirements of NBDOT through the development of custom function key based macros. A user requirements study and GPS technology assessment were undertaken at the outset of the project. In addition to the development of the integrated field collection system, a comprehensive field procedures manual was prepared and NBDOT staff were trained to operate the system. Custom data reduction procedures were written to edit the data and prepare files for loading into the CARIS GIS as point and line features, and into an ORACLE database as dynamic segmentation linear and point event features. A further objective of the pilot project was to compute Linear Reference System (LRS) locations from the GPS coordinate measurements obtained in the field, and compare these derived locations to the actual field measured LRS distance offsets. This paper describes the work undertaken during the course of the project, including the various technologies comprising the prototype data collection system. Preliminary results and conclusions from the study are also presented.


  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 27-40

Subject/Index Terms

Filing Info

  • Accession Number: 00727014
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 1 1996 12:00AM