AERIAL SURVEYED STRING DIGITAL GROUND MODELS

The results are discussed of a successful project in which the most significant error was in the initial preparation of the model. Modifications are also proposed of the storage and retrieval of information. Arising from the analysis of errors, a testing procedure is described which is simple to apply and uses the relevant statistics if mean and variance. The basic theory is set forth and the general results are discussed. Details are given of the data preparation and retrieval. The standard practice recommended in the Technical Memorandum H9/70 is discussed and ammendments to it are suggested. The ammendments to be specifications consist of a testing procedure by which the client may accept of reject the contracted ground model.

• Supplemental Notes:
  • Presented at Seminar W (Road Design 2: Specialist Topics) of the PTRC Summer Annual Meeting, Warwick University, England, 8-12 July 1974.
• Corporate Authors:

  Planning and Transport Res and Computation Co Ltd

  167 Oxford Street
  London W1R 1AH,   England 
• Authors:
  • Heatherington, S
  • Craine, G S
• Publication Date: 1974-7

Media Info

• Features: Figures; References;
• Pagination: p. 18-37
• Serial:
  • Publication of: Comision Permanente del Asfalto
  • Publisher: Comision Permanente del Asfalto

Subject/Index Terms

• TRT Terms: Aerial surveying; Data storage; Digital computers; Information retrieval; Mathematical models; Performance based specifications; Specifications; Statistical mean; Testing; Variance
• Uncontrolled Terms: Digital techniques
• Old TRIS Terms: Mean (Statistical)
• Subject Areas: Design; Highways;

Filing Info

• Accession Number: 00096295
• Record Type: Publication
• Report/Paper Numbers: PTRC/P/109
• Files: TRIS
• Created Date: Sep 10 1975 12:00AM