IDEAS ON SOME NEW TYPES OF HIGHWAY SAFETY FENCE

IDEE SU ALCUNI NUOVI TIPI DI BARRIERE DI SICUREZZA STRADALI

This paper describes and illustrates a tensioned cable safety barrier in which two metal cables are supported by a split concrete member comprising the supporting post and base. The two symmetrical concrete components have built-in half sleeves in which the cables are clamped when the posts are bolted together. The pressure on the cables can be regulated by the bolts, thereby controlling the reaction of the cables under impact. These concrete supports are shielded by a plastic cover and are free standing on the pavement between suitably spaced fixed supports designed to break off longitudinally on impact, but providing strong lateral resistance. A variation of this type of barrier uses only the fixed break off posts, omitting the free standing concrete supports. A new modification of the rigidly supported continuous steel guardrail is also illustrated and briefly described. /TRRL/

• Corporate Authors:

  Societa Autostrade

  Via Antonio Nibby 10
  00161 Rome,   Italy 
• Authors:
  • Torrisi, S
• Publication Date: 1976-11

Language

• Italian

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 15-27
• Serial:
  • AUTOSTRADE
  • Volume: 18
  • Issue Number: 11

Subject/Index Terms

• TRT Terms: Cables; Concrete; Concrete structures; Design; Fences; Guardrails; Steel; Structural supports
• Old TRIS Terms: Safety fence (Excludes guard rail); Supports
• ITRD Terms: 4530: Cable; 4755: Concrete; 9011: Design (overall design); 1686: Safety fence; 4542: Steel
• Subject Areas: Design; Highways; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 00159812
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Dec 27 1977 12:00AM