THE EVALUATION OF VISUAL INTRUSION

The aesthetic content and quantitative content of visual intrusion are recognized, and the hypothesis is discussed which states that visual amenity could be assesed in terms of the solid angular subtense of elements of the view subtended at the observer's eye, the position in the visual field relative to the direction of view of each of these elements, and a hedonic factor to assess quantitatively the degree or pleasure which each element of the visual field contained within the context of the view. A visual index which takes into account the magnitude and visual evaluation in spatial terms is shown to correlate with directive subjective judgements. Three possible approaches to the problem of aesthetic content are suggested and includes social survey techniques and laboratory experiments. The study also included a psychophysical investigation if visual intrusion from moving traffic which lead to a predictor formula for visual intrusion based upon traffic density, precentage of heavy vehicles and distance from the band of moving traffic.

• 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:
  • Hopkinson, R G
  • Woods, P C
• Publication Date: 1974-7

Media Info

• Pagination: p. 146-162
• Serial:
  • Publication of: Comision Permanente del Asfalto
  • Publisher: Comision Permanente del Asfalto

Subject/Index Terms

• TRT Terms: Aesthetics; Evaluation; Forecasting; Formulas; Heavy vehicles; Human factors; Index tests; Laboratory studies; Psychological aspects; Quantitative analysis; Surveys; Traffic density
• Uncontrolled Terms: Quantifying; Visual intrusions
• Old TRIS Terms: Index properties
• Subject Areas: Economics; Highways; Safety and Human Factors; Society;

Filing Info

• Accession Number: 00096298
• Record Type: Publication
• Report/Paper Numbers: PTRC/P/109
• Files: TRIS
• Created Date: Sep 10 1975 12:00AM