Temporary Traffic Management
- Publication no: AP-R678-22
- ISBN: 978-1-922700-54-4
- Published: 5 September 2022
- PDF (free) Download
This report details an economic evaluation of Austroads’s proposal for national harmonisation of temporary traffic management practice.
The study used a breakeven analysis to estimate the reduction in crash costs at roadside worksites that would be needed to at least equal the costs of the Austroads proposal.
Drawing on crash data supplied by state/territory agencies for the study and other published sources, the study estimated that nationally there are 18 fatal crashes, 245 serious injury crashes and 530 minor injury crashes at roadside worksites annually. Over a 10‑year period at a 4% discount rate the total cost of those crashes would be $3.2 billion.
The study found that a crash reduction at roadside worksites of approximately 5% would yield a reduction in crash costs that was equal to the costs of the Austroads proposal. This is equivalent to the total of the following annual crash reductions: 0.8 fewer fatal crashes, 11.7 fewer serious injury crashes and 25.4 fewer minor injury crashes per year.
- Summary
- 1. Introduction
- 1.1 Purpose
- 1.2 Scope
- 1.3 Limitations
- 1.4 Methodology
- 1.4.1 Terminology
- 1.4.2 Approach to the Analysis
- 2. Methodology
- 2.1 Elements of the Methodology
- 2.1.1 Crash Costs
- 2.1.2 Agency and Industry Costs
- 2.1.3 Other Methodological Issues
- 2.2 Report Outline
- 2.1 Elements of the Methodology
- 3. The Austroads Project Proposal
- 3.1 Background
- 3.2 Project proposal
- 4. TTM Activity Description
- 4.1 TTM Industry
- 4.1.1 Description
- 4.1.2 Cross-border Operation
- 4.1.3 Industry Value
- 4.2 Agency Regulatory Activity
- 4.1 TTM Industry
- 5. Crashes and Crash Causation at Roadside Worksites
- 5.1 Incidence of Worksite Crashes
- 5.2 Factors in Crash Causation
- 5.2.1 Excessive Speed – Both Over the Speed Limit or Too Fast for Conditions
- 5.2.2 Analysis of Agency Data
- 5.2.3 Analysis of Police and Work Health and Safety Data
- 5.2.4 Summary
- 5.3 Effectiveness of Remedial Measures
- 5.3.1 Regulation, Traffic Signs and Informational Controls
- 5.3.2 Enforcement-related Controls
- 5.3.3 Operational Controls: Traffic Related
- 5.3.4 Operational Controls: Worksite/Worker Related
- 5.3.5 Physical Protection and Separation-related Controls
- 5.3.6 Driver Education and Awareness Campaigns
- 5.3.7 Summary
- 6. Estimation of Crash Costs at Roadside Worksites
- 6.1 Crash Incidence at Worksites
- 6.2 Crash Costs
- 6.3 Implications for Breakeven Analysis
- 7. Estimation of Agency and Industry Costs
- 7.1 Agency Costs
- 7.1.1 State and Territory Road Agencies
- 7.1.2 Austroads
- 7.2 Industry Costs
- 7.2.1 Training
- 7.2.2 Registration of RTOs
- 7.2.3 Accreditation of TTM Providers
- 7.3 Summary of Agency, Austroads and Industry Costs
- 7.1 Agency Costs
- 8. Breakeven Analysis
- 8.1 Decision Criterion
- 8.2 Results
- 8.3 Sensitivity Tests
- 8.4 Ramp up Implications
- References