Mätning av bränsleförbrukning på asfalt och betongbeläggning norr om Uppsala: mätningar med personbil och lastbil

Bengt-Åke Hultqvist

In order to increase knowledge of how fuel consumption corresponds to pavement type, the Swedish Road and Transport Research Institute was consulted to investigate the difference between an asphalt and a concrete pavement. Measurements were made north of Uppsala, Sweden, where a highway stretch includes both of the pavements. The study involved both light and heavy goods vehicles. In June 2008, results from a previous study showed a significant fuel consumption difference for light vehicles driven on bituminous and concrete road surfaces. Fuel consumption was 1.1per cent lower on the concrete surfacing (Jonsson och Hultqvist, 2008). The aim of the current study was to determine if this difference remained, in June 2010, after two more years of traffic and operation. The investigation was also expanded to determine any effect on heavy goods vehicle fuel consumption. If there is noticeable difference in vehicle fuel consumption on the two pavement types, the difference can be used during life cycle cost calculations and help determine the choice of pavement material.



Open seminar with Mistra SAMS international scientific advisory...

Mistra SAMS international scientific advisory panel (ISAP) is visiting Stockholm, and the program will host an open seminar where the panel members will give talks in their area of expertise.

ERPUG 2017

The five year anniversary of  European Road Profile Users' Group (ERPUG) Forum will take place at Ramboll head quarter, Copenhagen, Denmark October 19-20, 2017. 



Vehicle Driver Monitoring: sleepiness and cognitive load

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Tomas Svensson new director-general

Tomas Svensson was today appointed Director-General of VTI. Tomas has been acting Director-General since January 2017. 


Crash testing bicycles at VTI

For the first time single bicycle crashes have been simulated at the VTI crash safety laboratory.


A case study exploring firefighters’ and municipal officials’ preparedness for electrical vehicles

A VTI-study presents a social perspective on new vehicle technology. It explores the self-reported preparedness of the fire departments (i.e., rescue services) in Sweden’s three largest cities regarding rescue operations involving electrical vehicles (EVs).


Pioneering research on and about bicycles at VTI

Under what circumstances might cyclists lose tyre grip? What actions could then be taken to prevent a crash? VTI is currently developing a theoretical model of the behaviour of bicycle tyres during braking and steering in different situations and on different...


Virtual pedestrians create efficient stations

If more people are to choose sustainable travel, then the public transport stations of the future must be designed so that pedestrians can get where they are going quickly, without congestion or queues. The Swedish Road and Transport Research Institute (VTI)...