PD 6634-5:1999

Committees responsible
      Foreword
1 Scope
2 Barrier transition and terminal concepts
3 Practical trials and simple theoretical design concepts for safety
      barrier transitions
      3.1 Practical vehicle impact trials
      3.2 A simple analytic design criterion for safety barriers of
             different lateral stiffness connected by a transition
      3.3 Analytic equations for prototype barrier design, of vehicle
             contact length and transition length
      3.4 Example of calculations for prototype barrier design,
             vehicle contact length and transition length
      3.5 Summary
4 Practical trials and simple theoretical design concepts for safety
      barrier terminals
      4.1 General
      4.2 Practical vehicle impact trials
      4.3 Simple analysis and design assessment of vehicle end-on
             impacts into a safety barrier soft terminal
      4.4 Vehicle deceleration and resistive force in a central end-on
             terminal impact
      4.5 Resistive force of the terminal and vehicle spin-out
      4.6 Limitation of spin-out by tyre side force
      4.7 A design for side impact on a soft terminal
      4.8 Design example of a graded soft terminal
      4.9 Summary
Bibliography

Deals with the development of barrier transitions and terminals for vehicle highway safety barriers in the United Kingdom. Theoretical designs and practical tests involving vehicle impact into transitions and soft terminals are covered..

This part of PD 6634 describes the development of barrier transitions and terminals for vehicle highway safety barriers in the United Kingdom. Theoretical designs and practical tests involving vehicle impact into transitions and soft terminals are described.