Inge Vierth


Picture of Inge Vierth

Research results from Inge


What determines the choice of mode for freight transports?

The purpose of this report is to compile and assess the research and knowledge base with regards to what determines the choice of mode from a business perspective. The literature review is based on grey research and scientific articles within...

The cost of Swedish maritime accidents

For road transport there is a well-developed literature and practice regarding the valuation of accidents. In the maritime sector less progress has been made. This report adds valuations for three types of maritime accidents: injuries including...

Challenges and future research needs towards international freight transport modelling

The advanced internationalisation of markets and production processes continuously adds to the complexity of supply chains. At the same time improving the sustainability of the related international freight transport processes and optimising their...

Analyzing model uncertainty and economies of scale of the Swedish National Freight model...

The purpose of the paper is to analyze model uncertainty and economies of scale of the Swedish national freight transport model system Samgods to changes in its zone-to-zone base matrices. Even though economies of scale is important for freight...

The policy relevant maritime marginal social costs

The report aims to identify and as far as possible, quantify the policy-relevant (external) short-term marginal social costs of the use of the national maritime infrastructure and the external costs that maritime transport cause. The (internal)...

Validation of sea transports in Samgods model

The project analyzes how well sea transports are modelled in the Swedish national freight model system Samgods. This first report comprises a short description of Version 1.1 of the model including calibration, a comparison of model results and...

Evaluating cost benefit analyses for investments in fairways

On behalf of the Swedish National Audit Office, VTI has analyzed the cost benefit analyses (CBAs) of three fairway investments. The CBAs for the fairways into the ports of Gothenburg, Norrköping and Gävle have been analyzed from a comparative and...

Why do CO2 Emissions from Heavy Road Freight Transport Increase in Spite of Higher Fuel...

The chapter analyzes why CO2 emissions from heavy road freight transports increase in spite of higher fuel prices. Swedish time series data for 1990-2011 are analyzed with the help of indicators. The logistic efficiency and the energy efficiency...

Regress – relevant for Sweden’s railway sector?

VTI has been commissioned to analyze the preconditions for, and possible consequences of introducing the possibility of regress in the railway industry. Regress refers to the possibility of anyone that is stricken by financial consequences of train...

Cost benefit analysis for sea transport projects

The Swedish Transport Administration states that there are no methods and tools for cost benefit analysis (CBA) of sea transports as there are for road and rail. The project analyses existing knowledge and recommends how a CBA-tool for sea...

Electricity consumption of longer and heavier trains

The ELVIS demonstration project aims to analyze how rail freight transports can be performed more efficiently. Hypotheses are that the transport efficiency can be improved by using longer and heavier freight trains and by implementing energy-related...

Baserunning - analyzing the sensitivity and economies of scale of the Swedish national...

The purpose of the paper is to analyze how sensitive the Swedish national freight model system Samgods is to uncertainties in its production-consumption matrices (PC-matrices). This is done by studying how sensitive outputs from one of its key...

The Swedish railway freight market

This report aims to describe how the Swedish rail freight market works and how it might develop in the future. It is written as background material for the Committee Reviewing the Organisation of the Railway Sector. This report follows up on the...

External costs in the transport scenarios with increased use of sea transports

The goal of this study is to provide material that illustrates how the external costs caused by freight transports are affected when today’s transport solutions are replaced by alternatives that use sea transports to a larger extent. This is...

Effects of more stringent sulphur requirements for sea transports

In 2008 the International Maritime Organization (IMO) decided on more stringent requirements from 2015 for airborne emissions of sulphur dioxide from sea transports in the sulphur emission control areas (SECA). The European SECA comprises the Baltic...

Analysis of the effects of IMO's more stringent sulfur requirements

On behalf of the governmental agency Transport analysis VTI has analysed the consequences of the stricter sulphur regulations for marine fuel with the Swedish national freight transport model Samgods. The base scenario has been compared with, in...

Precautionary and operative costs of freight train delays

There is limited knowledge about the valuation of reduced transport time variability for freight transports. This paper analyses a Swedish grocery company’s transports by shuttle train, as a case study. The distribution of the train arrival time is...

Freight transport, policy instruments and climate

The impact of policy instruments supposed to reduce greenhouse gas emissions from road freight transports may seem smaller than expected. Using insights from economics and contract theory, the paper sorts out the (possible) instances of market...

Joint econometric models of freight transport chain and shipment size choice

In freight transportation, decisions regarding the choice of transport mode (or chains of modes) and shipment size are closely linked. Building on this basic insight, in this paper we estimate and review various joint econometric models using the...

Competition between land based modes and sea transports for Swedish freight transports

This project aims to investigate the competition between road and rail transports on one hand and the sea transports on the other. Shippers choose different unimodal or multimodal transport chains to carry various types of goods in, to and from...

Updated calculation of transport costs for firms in Northern Sweden

The transport grant (Transportbidrag) is designed to compensate companies in the Northern part of Sweden for the higher transport costs that are caused by a disadvantageous geographic location. A total of 44 municipalities in the counties of...

Actual conditions for using longer trains and trial with longer freight train between...

The second sub-project of ELVIS demonstration project for longer and heavier freight trains aims to analyze the actual conditions for the use of longer trains and to evaluate the trial where a 730 metres long demonstration train (instead of a...

Summary of results, experiences and lessons learned from ELVIS demonstration project for...

The ELVIS demonstration project aims to analyze how rail freight transports can be performed more efficient. Hypotheses are that the transport efficiency can be improved by using longer and heavier freight trains and by implementing energy-related...

Why do CO2 emissions from heavy road freight transports increase in spite of higher fuel...

The paper analyses why CO2 emissions from heavy road freight transports increase in spite of higher fuel prices. Swedish time series data for 1990-2011 are analyzed with help of indicators. The logistic efficiency and the energy efficiency improved,...

Effects of Longer Lorries and Freight Trains in an International Corridor between Sweden...

The effects of enabling the use of longer road vehicle combinations and/or longer trains in an intermodal freight corridor that extends from central Sweden to the Ruhr area in Germany are studied. Transports are designed based on the smallest...

Brief structural analysis for sea transports

The purpose of the report is to analyze trends and specific events that could affect trade flows, the transport system, the sea transport volumes and the fee revenues of the Swedish Maritime Administration in 2020. In three parts the researchers...

[Land based freight transports, climate and policy]

VTI notat 28-2014 contains the ten underlying reports which is the base for VTI report 831: “Land based freight transports, climate and policy – Summary report”. In VTI report 831, the researchers discuss greenhouse gas emissions from freight...

Effects of longer trucks and freight trains in an international corridor between Sweden...

The effects of enabling use of longer road vehicle combinations and/or longer trains in an intermodal freight corridor that extends from central Sweden to the Ruhr area in Germany are studied. For the time being the transports are designed based on...

Spatial, Temporal and Size Distribution of Freight Train Delays

This paper analyzes how freight train delays are distributed with respect to size, location and time of their occurrence. Arrival delays are analyzed in detail using data covering all freight train departures and arrivals during 2008 and 2009 in...

Development of validation tool and collection of ITS-based validation data for freight...

This report deals with questions concerning validation of the Swedish national goods transportation model, Samgods. To some degree, also more general issues of validation are discussed. When developing transportation models it is essential to have...

Value of freight time variability reductions

Unreliable rail transports are the main contributor to the transport time variability. The Swedish Transport Administration registered around 40 000 delay hours in 2012, which corresponds roughly to 20 million tonne-delay-hours, given that 500...

Internalisation of external effects in European freight corridors

This project was conducted upon a request from the Swedish Agency for Transport Analysis (Trafikanalys), with a governmental assignment to annually report the rate of internalisation per mode for passenger and freight transports. In its 2013 report,...

Internalisation of External Effects in European Freight Corridors

External effects or externalities “consist of the costs and benefits felt beyond or ‘external to’ those causing the effect” (Anderson, 2006). In the case of transportation, the negative externalities (costs) can take the form of air pollution, noise...

Allocation of user benefits for international freight transports

The aim of this project is to analyse when, if and how a transport cost reduction, following an infrastructure investment affecting international freight transports, should be allocated between countries in a cost-benefit analysis (CBA). In order to...

External costs and infrastructure fees for five border crossing freight transports

Summary: For five international freight relations with origin or destination in Sweden, a total of fifteen alternative transport chains have been studied:- Case 1: Container transport from Hamburg to Eskilstuna- Case 2: Trailer transport from...

Freight transport CBA

The latest winters have caused problems for freight transport in Sweden. The subsequent discussion is about how well the freight transport is captured in the socioeconomic calculations, i.e. within cost-benefit analysis (CBA) of infrastructure...

An updated analysis of transport effects of IMO's more stringent emission requirements

VTI has been commissioned by the Swedish Maritime Administration (SMA) to analyze the impact of the International Maritime Organization’s (IMO) more stringent sulfur regulations, which will enter into force in 2015 in the Sulphur Emission Control...

Why do CO2 emissions from heavy road freight transports increase in spite of higher fuel...

The paper analyses why CO2 emissions from heavy road freight transports increase in spite of higher fuel prices. Swedish time series data for the period 1990-2011 are analyzed with help of indicators. The logistic efficiency of the road transports...

Recent developments in national and international freight transport models within Europe

The past decade has seen many new freight transport models for use in transport planning by public authorities. Some of these models have developed new concepts, such as logistics modules, inclusion of transshipments, storage and sourcing and the...

Valuation of transport time savings and improved reliability in freight transport CBA

The purpose of this chapter is to show how freight transport time savings (VTTS) and reduced variability in transport time (VTTV) are valuated in cost-benefit analysis (CBA) and to discuss alternatives. The chapter suggests a structure of the...

Survey of freight transport in Sweden

This report summarizes VTI’s contribution, assigned by Transport Analysis, to a project commissioned by the Swedish government on freight transport in Sweden. The focus of this report is to generate a knowledge base and an analysis of the present...

Follow-up study of the deregulation of rail freight traffic

Sweden, Germany, Great Britain and the Netherlands were among the first EU countries that deregulated their rail freight markets in the mid-1990s. In 2007 the international rail freight market was opened. Given that all EU countries have committed...

Cost benefit analysis of round wood transports using 90-tonne vehicles

The purpose of this report is to make a cost benefit analysis, showing how costs for truck transports of round wood would change if vehicles with a total weight of 90 tonnes were used instead of the 60-tonne vehicles that are currently in use. The...

Effects of longer trucks and freight trains in an international corridor

The project studies the effects of enabling the use of longer road vehicle combinations and/or longer trains in an intermodal freight corridor that extends from central Sweden to the Ruhr area in Germany. For the time being the transports are...

Trade and industry perspectives on the European Commission proposal on TEN-T and...

The suggested guidelines for the proposed Trans European Network – Transport (TENT) comprise two levels: a comprehensive-network and a core network. The purpose of the networks is amongst others to offer infrastructure services that support user...

Can the market for freight transport be expected to deliver efficient services?

A large share of Sweden’s aggregate use of energy is used in the transport sector, a third of which is used for freight transport purposes. Excluding the recent downturn in the business cycle, traffic and therefore also the use of energy, increases...

An outline for a validation database for SAMGODS

A new Swedish national goods transportation model, SAMGODS, has been developed through collaboration among Swedish transport authorities. As the model recently has begun to be applied to real world problems, the need for a validation database has...

Experience of international freight

National freight model development and application in Finland, Norway, Denmark, Germany and the Netherlands and within the EU has been compiled. This has been done based on questions formulated by the Swedish government agency Transport Analysis....

Valuation of transport time savings and improved reliability in freight transport in the...

This pre-study on behalf of the Swedish Road and Rail Administrations addresses the values for time savings and improved reliability in freight transport in the cost benefit analyses (CBA). - Values of transport time savings (VTTS)' are assumed to...

Effects of Eurovignette directive Dir. 1999/62/EC as amended by Dir. 2006/38/EC

The basis for the national report is the request in article 11 of the Eurovignette directive (Directive 1999/62/EC as amended by Dir. 2006/38/EC). "No later than 10 June 2011, the Commission shall present a report to the European Parliament and the...

Economic bases of port policy

The report contains a review of the transport policy issues and the economic literature relating to ports, including connections on the seaward and landward side. The prerequisites for a efficient port policy are discussed as well as the supporting...