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Cover of Improving Roadside Safety - Stage 3: Interim Report
Improving Roadside Safety - Stage 3: Interim Report
  • Publication no: AP-R419-12
  • ISBN: 978-1-921991-55-4
  • Published: 8 November 2012

The objective of this project is to improve the safety performance of roadsides. The Stage 3 interim report of this project presents the project findings achieved during the 2010-11 financial year. Stage 3 builds on findings and recommendations of the previous two stages by undertaking more detailed investigations of the three areas. In addition, Stage 3 sought to review road agency practices/processes for balancing environmental impacts of roadside safety management.

  • 1. INTRODUCTION
  • 2. PART 1: ROADSIDE HAZARD MANAGEMENT
  • 2.2.1. Project Stakeholder Consultation
  • 2.2.2. Literature Review
  • 2.2.3. Investigation of Severity Indices
  • 2.2.4. Analysis of Crashes into Poles (Site Visits)
  • 2.2.5. Practices for Balancing Environmental Impacts of Roadside Safety Management
  • 3. PART 2: SELECTION AND PLACEMENT OF SAFETY BARRIERS
  • 3.2.1. Project Stakeholder Consultation
  • 3.2.2. Literature Review
  • 3.2.3. Development of a Project Database
  • 3.2.4. Data Analysis
  • 3.3.1. Background
  • 3.3.2. Project Stakeholder Consultation
  • 3.3.3. Review of Literature on Barrier Performance
  • 3.3.4. Review of Safety Barrier Test Performance Standards
  • 3.3.5. Selection of Different Barrier Types – Data Analysis
  • 3.3.6. Placement of Barriers – Data Analysis
  • 3.3.7. Summary
  • 3.4.1. Background
  • 3.4.2. Barriers in Wide Medians
  • 3.4.3. Barriers in Narrow Medians
  • 3.4.4. Issues with Flexible Median Barriers
  • 3.4.5. Summary
  • 3.5.1. End Treatments
  • 3.5.2. Transitions
  • 3.6.1. Energy Absorbing Pole/Tree Buffer (EAPTB)
  • 3.6.2. Raptor
  • 3.6.3. Summary
  • 3.7.1. Background
  • 3.7.2. Motorcyclist Fatalities Due to Safety Barriers
  • 3.7.3. Conventional Barrier Systems
  • 3.7.4. Types of Solutions
  • 3.7.5. Examples of Solutions
  • 3.7.6. Relevant Testing Standards for Motorcyclist Barrier Solutions
  • 3.7.7. Summary
  • 3.8.1. Background
  • 3.8.2. Overview of Current Australasian Guidelines
  • 3.8.3. Heavy Vehicle Barriers Used in Australia and New Zealand
  • 3.8.4. Performance of Barriers in Heavy Vehicle Crashes – Crash Tests
  • 3.8.5. In-service Performance of Barriers in Heavy Vehicle Crashes
  • 3.8.6. In-service Performance of Barriers in Heavy Vehicle Crashes – Data Analysis
  • 3.8.7. Summary
  • 4. PART 3: CLEAR ZONES
  • 4.2.1. Project Stakeholder Consultation
  • 4.2.2. Literature Review
  • 4.2.3. Modelling of Clear Zone Widths and Crash Outcomes
  • 4.2.4. Clear Zone Selection Guidance
  • 4.3.1. Background
  • 4.3.2. The Clear Zone Concept
  • 4.3.3. Roadside Hazard Offsets and Crash Outcomes
  • 4.3.4. Run-off-road Crash Impact Conditions
  • 4.3.5. Roadside Safety Performance in Different Clear Zones
  • 4.3.6. Crash Reduction Factors for Clear Zones
  • 4.3.7. Summary
  • 4.4.1. Project Stakeholder Consultation
  • 4.4.2. Road Feature Data
  • 4.4.3. Crash Data
  • 4.4.4. Traffic Volume Data
  • 4.4.5. Building the Project Database
  • 4.4.6. Proposed Analytical Methods for Stage 4
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