Vehicle mass is a crucial factor for the distribution of injuries between occupants in involved vehicles in a two-vehicle crash. A larger vehicle mass protects the occupants in the vehicle while on the same time inflicts a higher injury risk on the occupants in the collision partner. This mass...

Gross contracts appear to be the most common contract form for procured public transport in Sweden and elsewhere. This contract form, it has been argued, gives weak incentives for operators to deliver the desired quality level. Therefore many procuring public transport authorities amend...

Today’s dominant mechanism for infrastructure project tendering is the Unit Price Contract (UPC). While the winning bidder retains risk related to the unit price bids submitted, the Principal carries all risk related to misspecification of the activities required for having a project build....

Economic theory advocates marginal cost pricing for efficient utilisation of transport infrastructure. A growing body of literature has emerged on the issue of marginal infrastructure wear and tear costs, but the majority of the work is focused on costs for infrastructure maintenance. Railway...

This study outlines a method to estimate the short run marginal cost (SRMC) for road and railway noise. It is based on standardized calculation methods for total noise levels and monetary cost estimates from well established evaluation methods. Here official calculation methods and monetary...

Determining the monetary impact of transportation noise is increasingly important. Several methods exist to estimate the monetary values. In this paper two different methods are compared; monetary values based on noise levels and annoyance data. It is demonstrated that using published data on...

Risky driving behavior is regarded as being one of the best predictors of traffic accidents. Traffic violations certainly signal risky driving behavior, but the analysis of the linkage of traffic violations, individual and vehicle characteristics and annual mileage has so far been hampered by...

Contract relevant information asymmetries are known to cause inefficiencies in markets. The information asymmetry is largest in the beginning of the customer insurer relationship but reduces over time; the longer a policyholder stays with the insurer the more the insurer learns about the...

A common approach for procuring large construction projects is through Unit Price Contracts. By the means of a simple model, we study the optimal quantity to procure under uncertainty regarding the actual required quantity given that the procurer strives to minimize expected total costs. The...

Inom samhällsekonomiska analyser utgör kostnad-nyttoanalys (CBA) ofta en viktig funktion och detta gäller särskilt vid dagens transportpolitiska beslutsfattande. Samtidigt är det en metod som är i centrum för en del diskussioner. Följande uppsats avser att analysera dessa diskussioner ur...