Återvinning av tjärasfalt och krossad asfaltbeläggning vid motorvägsbygget på E4 vid Markaryd

Torbjörn Jacobson

When building a new part of the E4 motorway in the south of Sweden between the years 2004 and 2006, 100,000 tons of reclaimed asphalt was used for recycling. The reclaimed asphalt material came from the former part of the E4 which had to be excavated when building the new motorway. At the northern part of the new motorway, 30.000 tons of asphalt containing tar was recycled with a cold recycling technique using foamed bitumen. At the southern part of the new motorway, 70,000 tons of crushed asphalt pavements were recycled without adding of new bitumen. In both cases the recycled materials were used as road base which replaced a conventional unbound road base of crushed aggregate with the identical thickness, 80 and 150 mm respectively. In this report there is a description of the planning of the work, guidelines for recycling asphalt containing tar, crushed asphalt, pre-sampling methods, testing of the compaction of full-scale constructions, control sections, quality control and monitoring of the completed motorway.



Vision Zero for Sustainable Road Safety in the Baltic Sea Region

The conference Vision Zero for Sustainable Road Safety in the Baltic Sea Region is held i Vilnius, Lithuania. VTI is part of the organisation committé and also one of the speakers.



ADAS&ME is tackling the interaction between people and technology

ADAS&ME is a major EU project focused on automation, the human condition and the human environment. The budget is EUR 9.6 million and VTI is the coordinator.


Users contribute to the development of train simulators

Apart from advanced driving simulators, VTI has developed several variations of train simulators which are used for training, education and research. In recent years, interest has increased drastically among major actors in the railway sector, and VTI has...


VR study to contribute to a better working environment for bus drivers

A study where bus drivers test autonomous driving in a VR environment may contribute to a better working environment with reduced stress on the driver and safer driving.


Non-native plant species spread via transport systems

Researchers at VTI have compiled a report on non-native invasive plant species in Sweden and how they spread via transport systems.


EU-project VIRTUAL: improving road safety with virtual crash tests

Crash tests are used to improve safety on roads. Therefore the EU now funds a research project to develop virtual methods of crash testing. VTI coordinates the project, called VIRTUAL. The project now invites experts interested in Human Body Modeling to join...


EU project protects cyclists and pedestrians

According to the World Health Organisation, more than one quarter of road traffic fatalities in 2010 were pedestrians and cyclists. Every year, about 335,000 unprotected road users die because of traffic accidents, which shows the scale of the problem. The EU...