Principdiskussion kring LCC-kalkyler för väginvesteringar

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In the current study, we analyze how the Swedish Transport Administration (STA) should involve LCC analysis in their activities regarding road investments. The basis for the study is the LCC analysis and its similarities and differences compared to cost-benefit analysis (CBA), where the latter for a long time has been an important part of STA’s decision basis for infrastructure measures.

We have made three important observations in our analysis. First, a generic observation is that LCC analysis should be used as a complement to CBA but preferably on a more detailed level to choose between different technical solutions. This implies that LCC analysis may, and should, be treated as a decision basis to conduct measures with a given operational function in an efficient way.

Furthermore, another observation is the risk for not conducting the efficient amount of maintenance, partly due to the lack of resources, but also since the maintenance measures and infrastructureinvestment measures are based on different, politically decided, budget constraints. Also, the budget process within the organization makes it difficult to optimize for the complete life cycle. Both these issues are organizational, that only can be solved on the governmental level or within STA with directions regarding the investment measures to conduct and which decision basis to rely on.

In addition, we have observed methodological differences between LCC analysis and CBA considering the road-user costs in connection to disturbances of planned road maintenance. Our view is that these costs should be included in an LCC analysis and our analyze confirm the observation of Eriksson and Edelman (2014), namely that a relatively high traffic volume leads to that measures with a small maintenance requirement in the future in general will have a lower life cycle cost.

Finally, our recommendation is that LCC analysis has an important role within STA when aiming for efficient design of infrastructure measures. However, it is of importance to develop the LCC methods and, especially, eliminate the organizational barriers for implementing LCC as a way for efficient measures

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