THREE CAR IMPACT TESTS ON THE COMBINED OPEN BOX BEAM SAFETY FENCE AND TIMBER NOISE BARRIER

Results of three full scale near side impacts at 112 km/h and 20 degree impact angle on combined open box beam safety fence and timber noise barriers are reported. Two 1.5 tonne cars and a one tonne car were used as the impact vehicle and in all the tests the vehicles were contained and redirected, with negligible roll, in a stable manner except that the one tonne car yawed through 180 degrees after impact. In the 1.5 tonne car impacts, the cars made contact with the energy absorbing hexagonal brackets. The degree of contact was not sufficiently severe to recommend a change in the height (610 mm) of the safety fence beams. Changes were made to simplify the fixings between the safety fence and the timber noise barrier. The tests showed that the current method of construction using long bolts passing to the rear of the timber panels could be replaced by small metal clamps fastening onto the front flange of the noise barrier posts. This aids construction, alignment and repair, with a potential to reduce costs without loss of performance. (a)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02665247
• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • MACDONALD, M D
• Publication Date: 1989

Language

• English

Media Info

• Pagination: 21 p.
• Serial:
  • TRRL RESEARCH REPORT
  • Issue Number: RR 1
  • Publisher: Transport and Road Research Laboratory (TRRL)
  • ISSN: 0266-5247

Subject/Index Terms

• TRT Terms: Automobiles; Construction management; Crash tests; Guardrails; Nearside; Noise barriers; Side crashes; Wood
• Uncontrolled Terms: Three
• ITRD Terms: 1243: Car; 3666: Construction method; 1648: Impact test (crash); 2886: Noise barrier; 9051: On the right; 1686: Safety fence; 1630: Side impact; 9079: Three; 4506: Wood (mater)
• Subject Areas: Construction; Highways; Research; Safety and Human Factors;

Filing Info

• Accession Number: 00487749
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: 19
• Files: ITRD, TRIS, ATRI
• Created Date: Sep 30 1989 12:00AM