This paper considers the path choice problem, formulating and discussing an econometric random utility model for the choice of path in a network with no restriction on the choice set. Starting from a dynamic specification of link choices we show that it is equivalent to a static model of the...

The amount of time individuals and households spend in travelling and in out-of-door-activities can be seen as a result of complex daily interactions between household members, influenced by opportunities and constraints which vary from day to day. Extending the deterministic concept of travel...

The aim of this paper is to describe the relationship between transport buying companies and carriers, with a focus on the transport contracts in Sweden for land based transports. Based on the aim of this study, the following research questions have been defined: How can contracts be...

Rank dependent utility maximization is applied in maximizing a linear and a quadratic scheduling model considering a subjective weighting over uncertain outcomes. The optimal departure time and maximal utility are different from that under expect utility maximization in the transformed travel...

Data sources using new technology such as the Geographical Positioning System are increasingly available. In many different applications, it is important to predict the average speed on all the links in a network. The purpose of this study is to estimate the link speed in a network using sparse...

In this paper, we introduce a discrete penalty for excessive travel times into scheduling models whose maximal expected utilities have attractive theoretical features of linearity in standard deviation or variance. The extended models maintain the properties of linearity, and its maximal...

This paper uses discrete choice and count data models to analyze the effects of a tax on vehicle insurance levied in Sweden in 2007. The analysis is based on a large set of micro-level panel data on individual insurance holders at the largest insurance company in Sweden for the period 2006-2010....

Denna rapport analyserar Trafikverkets, Transportstyrelsens, Konkurrensverkets och Konsumentverkets aktiviteter med järnvägs- och kollektivtrafikmarknaderna under januari till augusti 2012. Vi finner inga indikationer på att företag av Trafikverket förfördelats i tilldelningen av...

The benefits captured in an appraisal of a railway investment are determined by what timetables the analyst assumes in the scenarios with and without the investment. Without an explicit, objective and verifiable principle for which timetables to assume, the appraisal outcome is virtually...

A number of highly cited papers by Flyvbjerg and associates have shown that ex-ante infrastructure appraisals tend to be overly optimistic. Ex post evaluations indicate a bias where investment cost is higher and demand lower on average than predicted ex ante. These authors argue that the bias...