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Predictions of the share that walk or bicycle to work: travel surveys combined with register based data with high geographic resolution

Year:
2014
VTI-code:
N20-2014

Authors: Gunnar Isacsson

The Swedish Transport Administration has recently developed a tool (“GC-kalk”) for assessing investments in the infrastructure for walking and bicycling. These assessments are inter alia based on the number of individuals that walk or bicycle before the investment.

This report uses the Swedish national travel survey combined with register based (administrative) data with high geographic resolution to generate predictions of the number of people walking or cycling to work in a small geographic area. The basic problem is that the register based material that includes the entire ...

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Research area

Traffic analysis
Transport system

  • Published: 2014-09-19
  • VTI-code: N20-2014

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Energy measurement on timber train transports on the route Mora–Borlänge–Gävle

Year:
2014
VTI-code:
R829

Authors: Joakim Ahlberg

The report analyze how the energy of a freight train is due to the gross weight of the train, the number of stops the train makes and drivers’ driving style.

Findings were that driving style plays a major role, between drivers the different in net energy used is up to 20 percent. Furthermore, there is differences in energy use connected to (gross) weights on the train, but it is a bit unclear how the results should be interpreted due to the lack of quality of the data. It will takes more measurements to be able to say anything more definite. The same applies to the number of stops ...

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Research area

Transport system

  • Published: 2014-09-02
  • VTI-code: R829

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Summary of results, experiences and lessons learned from ELVIS demonstration project for longer and heavier trains

Year:
2014
VTI-code:
N25-2014

Authors: Inge Vierth

The ELVIS demonstration project aims to analyze how rail freight transports can be performed more efficient. This report (VTI notat 25-2014) summarizes the results and experiences from the three previously produced sub reports.

In terms of both energy efficiency and overall efficiency for the rail transports researchers, companies and the Swedish Transport Administration conclude that there is a big need to secure the quality of the data that is produced. This applies to information about electricity consumption and the factors that possibly affect electricity consumption per ...

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Research area

Environment
Transport system

  • Published: 2014-08-21
  • VTI-code: N25-2014

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

Year:
2014
VTI-code:
R822

Authors: Rune Karlsson , Inge Vierth , Lina Jonsson , Megersa Abate

The 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 Sweden. Transport prices are a key factor when choosing the transport chain. Sea transport prices are set on the world market and fluctuate more than prices for road and rail transports. Imbalances in transport flows also affect the intermodal competition, in particular for transports to/from mainland Europe.

According to the ...

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Research area

Transport system
Transport economics

  • Published: 2014-06-18
  • VTI-code: R822

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Traffic safety and perceptions of safety in the interaction between street environment and a more energy efficient lighting

Year:
2014
VTI-code:
R816

Authors: Annika Jägerbrand

LED lighting or Light Emitting Diodes is a type of light source that is starting to be used in larger scale on pedestrian and bicycle lanes in Sweden and elsewhere. The project's aim was to study the traffic safety aspects of new lights and the interaction with the street environment for pedestrians and cyclists.

This project investigated the lighting conditions, effects on cyclists, and the interactions between lighting, traffic safety, street environmental conditions and/or other effects such as perceptions of safety for three different light sources (mercury vapour 125W, ...

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Research area

Environment
Transport system
Traffic safety

  • Published: 2014-04-23
  • VTI-code: R816

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Sustainable transport – opportunities and barriers

Year:
2014
VTI-code:
R797

Authors: Sonja Forward

This report describes the results of a survey including 1.133 people using a questionnaire covering factors that affect traveller´s intentions to cycle and how to get the "reluctant" rider to start cycling.

In the survey, participants were answering different questions based on two different theories (Theory of planned behaviour and The transtheoretical model of change) and were asked to link them to a journey they usually make in a week. Results showed that distance travelled was an important factor influencing modal choice although this was not the only one since attitude, ...

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Research area

Transport system

  • Published: 2014-03-13
  • VTI-code: R797

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Pedestrians’ valuations of footpaths

Year:
2014
VTI-code:
R806

Authors: Gunilla Björklund , Kristofer Odolinski

The background to this study is an inquiry by the Swedish Transport Administration to develop methods for benefit-cost analyses for pedestrians’ appraisals of their walking environment and how different improvements in the environment affect decisions to walk.

The issues studied are:
1. What type of road do pedestrians prefer when they choose which route to walk?
2. What is the willingness to pay to get more attractive footpaths?
3. How many persons will start to walk if it is built more attractive footpaths?

The third issue was unfortunately not possible ...

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Research area

Transport system
Transport economics

  • Published: 2014-02-21
  • VTI-code: R806

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Bicycle-friendly cities – the relevance of urban form and infrastructure

Year:
2014
VTI-code:
R769

Authors: Sebastian Bamberg , John Parkin , Aslak Fyhri , Kerstin Robertson

This report presents the results of a study with the overall aim of analysing the extent to which urban form and the design of the transport system can explain the level of cycling in cities. Distance was the most important factor associated with levels of bicycle use.

Bicycle traffic in cities can have several positive effects on quality of life. Despite these benefits bike share varies greatly between cities, both within and between countries, and in many cities there is a large potential for increased bicycle use. Better understanding of the causes of these differences is ...

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Research area

Transport system
Planning and decision-making processes

  • Published: 2014-02-19
  • VTI-code: R769

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Analysis of the effects of IMO's more stringent sulfur requirements – Model calculations on behalf of the governmental agency Transport analysis

Year:
2014
VTI-code:
N33-2013

Authors: Inge Vierth , Rune Karlsson

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 total, 18 analysis scenarios developed by Transport analysis. The reason for the large amount of scenarios is the fact that both the technical and the economic development (related to the sulfur directive) is uncertain and needs to be taken into consideration.

The results show that the demand for sea transports on the Swedish ...

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Research area

Transport system

  • Published: 2014-01-23
  • VTI-code: N33-2013

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

Year:
2013
VTI-code:
R804

Authors: Rune Karlsson , Inge Vierth , Christian Udin , Pia Larsson-Wijk , Abboud Ado , Fredrik Söderbaum , Magnus Johansson

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 independent data available that can be used for comparison, validation and calibration. The quality and availability of such data are obvious issues. It is a big advantage if these data cover many different aspects of the model results and are collected on a regular basis.

In the report, a survey of data sources useful for ...

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Research area

Transport system

  • Published: 2013-12-20
  • VTI-code: R804

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