DESIGN PHILOSOPHY AND STATISTICAL METHODS

The provision of low cost roads requires careful evaluation of the relationship between construction and maintenance costs. This in turn necessitates appraisal of the nature of the design codes and especially their component elements. The utility of various current and new design elements, including density, grading, plasticity, bearing value, elastic modulus and other criteria is critically examined to determine their value for future codes of practice. An account is given of some new methods which may offer greater economy and better performance design. Based on bayesian decision theory, these methods permit the field survey data to be upgraded by a predictable, controlled application of existing engineering experience. Ideally, they might be coupled with commercial insurance principles, and such objectives seem now to be within the scope of realization. /TRRL/

• Corporate Authors:

  Commonwealth Scientific Indus Res Org, Australia

  Division of Applied Geomechanics
  East Melbourne, Victoria,   Australia 
• Authors:
  • Ingles, O G
• Publication Date: 1976

Language

• English

Media Info

• Features: Figures; Tables;
• Pagination: 16 p.

Subject/Index Terms

• TRT Terms: Bayes' theorem; Bearings; Costs; Density; Design; Evaluation and assessment; Grading (Earthwork); Highway maintenance; Methodology; Modulus of elasticity; Pavements; Plasticity; Road construction; Standards; Statistics
• Uncontrolled Terms: Grading; Low cost roads
• ITRD Terms: 3085: Bearing capacity; 224: Cost; 5908: Density; 9011: Design (overall design); 9020: Evaluation (assessment); 2855: Highway design; 8516: Lecture; 2986: Low cost road; 3847: Maintenance; 9102: Method; 5919: Modulus of elasticity; 6200: Particle size distribution; 2955: Pavement; 3055: Pavement design; 5922: Plasticity; 3665: Road construction; 187: Specification (standard); 6555: Statistics
• Subject Areas: Data and Information Technology; Design; Finance; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00164304
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Lecture Series N31 Analytic
• Files: ITRD, TRIS, ATRI
• Created Date: Jan 13 1978 12:00AM