Evaluation of Mass Action and Blackspot Treatments

Project: Research

Project Details

Project Description

The ACT Road Safety Research Action Plan for 2016-2020 includes mass action treatments (#3) and treatments to blackspot areas (#25). MUARC has a well-tested evaluation design for road infrastructure upgrades which estimates the benefits of associated crash reductions in terms of lives saved, injuries reduced and cost to society. An evaluation of these treatments of actions #3 and #25 would provide the ACT with the cost-benefits and internal rate of return associated with each treatment type, enabling them to improve future planning and spend more efficiently on infrastructure. The aim of this project is to conduct an evaluation of the mass action and blackspot treatment programs. MUARC has close to twenty years of experience in regular assessments of similar treatment programs in other jurisdictions.
The evaluation is based on associated reductions in crashes estimated via a quasi-experimental before-after treatment-control approach, which is used with design features in-built to minimise regression-to-the-mean effects. By using stratification and carefully chosen control sites the crash reductions associated with broad treatment types, road user types and locations may be estimated. The types of crashes reduced may also be estimated and the analyses may be performed for all crashes, injury crashes or casualty crashes.
Initial and total lifetime costs of the treatments can be compared with the estimated savings from crash reductions associated with the treatments in the form of benefit-to-cost ratios, net present worth and the internal rate of return.
The metrics will allow the ACT government to make informed decisions on future infrastructure improvements so that the treatments most efficient at saving lives or the most cost efficient effective treatments may be employed.
Effective start/end date1/01/1931/12/19


  • Monash University – Internal Faculty Contribution: A$66,937.00