Monetising time savings makes toll roads financially stack up, says research

Putting a financial value on the savings from traffic congestion, noise and air pollution as a result of toll roads and tunnels will make large infrastructure projects more cost effective, according to a new study by Australia’s Queensland University of Technology (QUT). Sae Chi, from the university’s Science and Engineering Faculty, has compared the financial and economic cost of public and privately operated toll roads and tunnels, and found the net impacts to the community should be taken into account
September 29, 2017 Read time: 2 mins
Putting a financial value on the savings from traffic congestion, noise and air pollution as a result of toll roads and tunnels will make large infrastructure projects more cost effective, according to a new study by Australia’s Queensland University of Technology (QUT).


Sae Chi, from the university’s Science and Engineering Faculty, has compared the financial and economic cost of public and privately operated toll roads and tunnels, and found the net impacts to the community should be taken into account in decision-making about transport infrastructure investment.

The research has been published in the Journal of Transportation Engineering titled Measuring impacts and risks to the public of a privately operated toll road project by considering perspectives in cost-benefit analysis.

The report claims that the financial bottom line should not be the only consideration when determining whether or not to invest in toll roads and tunnels.

Governments often partner with the private sector to share the costs and risks of building and operating toll road and tunnel projects. However, the report says that while private operators were looking for a bottom line return on investment, governments needed to consider benefits in addition to toll charges and traffic flows that can result in profits. Even when partnering with the private sector, it is important that governments consider the public benefits and monetise savings such as travel time, reduced costs to drivers and the positive outcomes for the environment. Chi believes that when governments put a financial cost on these factors the cost-benefit analysis sways much more heavily in favour of supporting infrastructure investment.

Chi said current cost-benefit analysis for road and tunnel projects was limited in Australia, and in most cases focused on the financials and not the public benefits. “But governments are responsible for public decision making for the good of their constituents and this includes ensuring that public funds are invested wisely and that regulation of private sector activity ensures a net benefit to society,” she said.

Chi believes the study findings would help support increased infrastructure investment across the nation, especially in high-growth population areas.

Charging, Tolling & RUC

Related Content

  • GPS accuracy concern in US
    April 17, 2012
    Pressure is growing in the US over concerns that GPS accuracy could be affected. A coalition has formed that comprises an array of the leading construction equipment manufacturers, GPS technology providers and other concerned bodies including those from the agricultural and airline industries. The coalition claims that up to 3.3 million US jobs could be affected by the threat to GPS accuracy, with an economic impact of some US$96 billion in annual direct economic benefits to the US economy.
    Read More
  • EU defines and limits scope of tolling concessions
    September 16, 2014
    New regulations are set to standardise the process of awarding concessions across the European Union. In the wake of several inconsistent judgements at the European Court of Justice, the European Commission has approved new legislation that defines a concession. The basic demarcation from a public contract remains the same in that concessions include the right to exploit the work or services provided instead of payment. However, at the point of signing, the regulations impose an all-inclusive threshold of €
    Read More
  • Average speed cameras reduce injury collisions, says report
    October 31, 2016
    Research carried out into average speed camera (ASC) effectiveness by the UK’s RAC Foundation concludes that the implementation of ASCs in the locations that have been assessed in its report has had the effect of reducing injury collisions, and especially those of a higher severity. Even taking into account other influencing factors, the report says the reductions are large and statistically significant. Researchers analysed detailed accident data taken from 25 sites where average speed cameras were inst
    Read More
  • HS2 ‘crucial to Britain’s future transport needs’
    October 30, 2013
    Britain cannot meet its future transport needs without HS2, according to new evidence published by the government. Even with over US$80 billion of planned transport investment over the next six years the country’s railways will be overwhelmed. The strategic case for HS2 sets out in detail the need for a new railway line to provide the vitally needed extra capacity. Central to the case is new data that reveals the true extent of the crisis facing the UK rail network and the impact alternatives to buildin
    Read More

Highlighted Content