This paper focus on challenges related to risk assessment and risk control when decking transport routes for dangerous goods with deckings. The objective is to carry out a knowledge inventory in international research literature on risk management and deckings, which also includes practice regarding different types of protection measures. This is done in combination with a current situation description of how this type of problem is handled in practice today. The review of literature is carried out with a so-called scoping study. It is expected to identify a number of possibilities for dealing with this type of risk management problem, as well as the evidence that may exist as support for different approaches. Interviews will be conducted with experts in the field who are active in Sweden. The interviews will partly be designed on the basis of the literature review and together these two methods will hopefully give a good picture of the current state of knowledge partly in the academic literature, but also in the practical context. In summary, we can state that there is some research concerning tunnels in general and the transport of dangerous goods, but when it comes to specific problems with deckings, there is a lack of studies. In some cases, the problem of deckings is mentioned, but there are no articles dealing with how this type of problem is solved in other countries, or about suggestions on how to manage risks in connection with deckings. From a risk governance perspective significant effort is necessary to facilitate sound and robust prerequisites to risk management of deckings to safe-guard that we are not drifting into failure and introduce risks in our modern society that we potentially will regret tomorrow.