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Sustainable project management through project control in infrastructure projects

Article highlight

This research paper explores the ways in which a major infrastructure project – the construction of an urban road tunnel in Finland situated near to an environmentally sensitive area – was managed according to the ‘triple bottom line’ of economic, environmental and social sustainability, using a package of appropriate project control mechanisms.


  • Sustainable development
  • Project control
  • Sustainable project management
  • Public–private partnership (PPP)
  • Alliance contract
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What does the paper cover?

Focusing on a single case study – a large-scale infrastructure project in Finland with multiple stakeholders and an alliance contract – the authors examined the sustainability of the project management in terms of the ‘triple bottom line’ of economic, environmental and social sustainability. Contextualised within a literature review, their analysis draws on documentary sources and interviews with project personnel to identify and comment on the mechanisms and practices (‘control package’) for sustainability during the planning and, more particularly, the implementation phase of the project.


The researchers studied a high-profile road tunnel project with a budget of 180M€ plus VAT involving 1,000 person-years of work. It was in an urban area, with lakes situated nearby, and its potential impact on the environment elicited considerable public interest.

The researchers studied 350 newspaper articles, as well as official project documents. They conducted semi-structured interviews with five project managers and engineers from the consortium formed to implement the project. All the data was then broken down, coded according to the three sustainability criteria, and evaluated to look at how the alliance contract affected sustainable project management and what methods of project control were used to promote and ensure sustainability in the project.

Research findings

The alliance drew together key stakeholders, including local authorities and contractors, enabling the sharing of risks and benefits, and promoting open discussion, quicker decision making and innovative solutions. Twenty innovations were implemented during the construction phase, saving time and money and addressing all three sustainability criteria.

In general, the researchers found that the three strands of sustainability tended to be addressed through different types of project control. The control practices promoting sustainability could be grouped into five categories: alliance model; project planning; measurements and indicators; regulations; and external communication. The first three addressed all aspects of sustainability. Regulations focused on the social and environmental aspects, and external communication only on social sustainability.

The economic aspect was addressed through shared financial incentives that kept costs down and collectivised risk. These were underpinned by four key performance indicators (KPI) relating to the project schedule, safety, usability of the tunnel and publicity. No environmental indicator was included, and in two instances a decision was made not to apply the most environmentally sustainable solutions on grounds of cost (for tunnel ventilation and exhaust gas cleaning). By implication, where a control mainly concerns only one strand of the triple bottom line, the KPIs would be an opportunity to link it with the other strands – this is hinted at in the authors’ introduction, where they advocate further research into holistic project control packages.

The environmental aspect was mainly addressed through observance of regulations which were built into the plan and implemented with the help of monitoring and corrective measures. One interviewee commented simply, ‘we follow the goals and plans, and they result in sustainability.’

Publicity, including public hearings, addressed the social aspect. Effective external communication, for example about environmental monitoring, gradually allayed public concerns and provided transparency about what was being done to address them.

The authors noted a tendency for social sustainability to take precedence over environmental sustainability, since it was more fluid and rewarded efforts to engage the public and improve their perceptions. However, the KPI on publicity also indirectly addressed the environmental aspect, because poor environmental practice leads to negative perceptions.


The alliance contract of this major infrastructure project encouraged openness and provided an incentive model that promoted efficiency, cost-effectiveness, innovation and risk sharing.

It proved an effective mechanism for sustainable project management, though the findings confirmed a need for sustainability also to be integrated into KPIs and project control routines.

The incentive model was a key feature of project governance (internal control) and the guiding force of the control package, supported by regulatory requirements (external control). In particular, the incentive model addressed economic sustainability. Environmental sustainability was mainly addressed through regulations and social sustainability through public engagement.

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