HIGHWAY ENGINEERING SURVEYS BY ELECTRONIC TACHEOMETRY - COST AND QUALITY BENEFITS FOR THE ENGINEER

For the past 60 years, data for road design have been collected by surveyors using cross-section methods. These methods were dictated by the restricted computing facilities available for grade and earthwork volume determinations. Introduction of computers and digital ground model programs has removed this constraint. Analyses of alternative survey techniques, and in particular electronic tacheometry, have revealed that cross-section methods are less efficient and less accurate and should only be employed under specific circumstances. Reference is made to the inter-relationship between ground surveys and photogrammetric surveys including digital mapping techniques. The use of co-ordinates in design and construction and further side benefits to be gained by electronic tacheometry are discussed. Areas where cross-section methods would still be beneficial are considered. /TRRL/

• Record URL:
  http://arrbknowledge.com
• Supplemental Notes:
  • This paper was presented at the 8th Conference of the Australian Road Research Board, Perth, Australia, August 23-27, 1976.
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Proter, J R
• Conference:
  • Australian Road Research Board Conference Proc
• Publication Date: 1976

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 10-14
• Serial:
  • Volume: 8
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Alignment; Benefit cost analysis; Computer programs; Conferences; Cross sections; Digital computers; Digital maps; Digital simulation; Earthwork; Electronics; Highway design; Mathematical models; Measuring instruments; Photogrammetry; Quantitative analysis; Setting out (Surveying); Surveying; Terrain
• Uncontrolled Terms: Models; Selection
• Old TRIS Terms: Digital photo map
• ITRD Terms: 2894: Alignment; 6155: Apparatus (measuring); 8525: Conference; 6404: Cross section; 6483: Digital model; 2855: Highway design; 4004: Photogrammetry; 3632: Quantification of earthworks; 9072: Selection; 2868: Setting out (surveying); 4025: Surveying (land); 4035: Terrain
• Subject Areas: Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00164148
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS, ATRI
• Created Date: Jun 28 1978 12:00AM