Utvärdering av djupdränering och infiltration i innerslänt – väg 126, Torpsbruk: Del 2, kompletterande data

Download
Klas Hansson

This report contains additional data from the study of moisture, drainage and groundwater along highway 126 near Torpsbruk, Sweden. The following are the main conclusions to be drawn from the experiments with sealed road verge and deep drainage system. Deep Drainage (with the Trammel system): • the installation of a deep drainage system can be recommended in places that have high ground water table and road cut in soil. • an effective method to control groundwater. • lowering the ground water table is very fast. • deep drainage can affect groundwater levels relatively far from the road area. • it reduces the moisture content of the road structure. • it needs to be maintained regularly. Sealed road verge: • no self-evident advantage of the sealed road verge in every case. • it stabilizes the moisture content – peaks of moisture and dry periods are leveled out. • it can prevent water from coming out of the road structure if water for any reason is coming in e.g. through cracks in the coating or penetrating groundwater. On the studied site are 13 groundwater level pipes (manual reading), 7 groundwater level pipes (automatic reading) and 4 pipes with moisture content sensors installed. Previous results are published in VTI Notat 13-2012.

MEET US


13-14
Jun

The 6st Humanist Conference

The 6th HUMANIST Conference will take place 13-14 June 2018 in the Hague, The Netherlands. The scope of the conference covers a wide range of topics on Human Factors in Transport. Tania Willstrand and Alexander Eriksson will present their research results.

LATEST NEWS


2018-04-17

VTI will develop simulators for ambulance staff

VTI has initiated a pilot study for paramedics with the Centre for Teaching & Research in Disaster Medicine and Traumatology and Linköping University. The aim is to give ambulance staff the opportunity to practice critical medical tasks in a moving vehicle in...


2018-04-12

Unique electrified road opens in Sweden

The world’s first electrified road recharging the batteries of cars and trucks while driving opened in Sweden. The Swedish Minister for Infrastructure, Tomas Eneroth, was at the formal inauguration of the electrified road on April 11, 2018. VTI is one of 22...


2018-04-11

Swedish road safety spreads internationally

Sweden is a leading country in terms of road safety, and the research conducted by the Swedish National Road and Transport Research Institute (VTI) has contributed to increased safety. VTI’s remit includes disseminating research results and keeping up to date...


2018-04-06

A greater understanding of cyclists' behaviour

Cyclists are often accused of not following traffic rules and being hooligans on the road. New research shows that there is no support for this perception. "Our observations reveal no such general anarchy" says Sonja Forward, researcher at VTI.


2018-03-28

New technology for road surface measurement tested

VTI has tested a new scanning-laser technology for road surface measurement. The tests show the new technology for comprehensive transverse-profile measurement provides dependable values in measuring transverse profile and rut depth.


2018-03-15

Ulf Sandberg has been presented with the TTI Lifetime Achievement Award 2018

VTI’s Senior Research Leader Ulf Sandberg has been presented with the TTI Lifetime Achievement Award 2018 for his work on research into tyres and road surface.