Assessment model for the transport of dangerous goods through road tunnels

In many cases decisions have to be made with respect to the safety level that has to be maintained in tunnels. In this paper the central question is how one can decide between (a) a tunnel with limited allowance for dangerous goods and a deviation route for the prohibited goods or (b) a tunnel allowed for all dangerous goods and possibly equipped with additional safety measures. In principle these type of decisions should be taken, at least partly, by comparing the costs and benefits of the various alternatives. This paper gives an outset of such an approach and discusses the needs for further research