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.

LATEST NEWS


2017-11-30

Millions for research into maritime transport and the environment

Maritime transport is a major source of emissions of harmful air pollutants and carbon dioxide. In a new project, a research team from the Swedish National Road and Transport Research Institute (VTI) and the University of Gothenburg has received SEK 6.4...


2017-11-30

New research programme for more efficient travel

The Swedish National Road and Transport Research Institute (VTI) is playing an important role in a major new research programme to find radical solutions leading to fewer trips and more efficient travel, along with tools to enable better use of roads and...


2017-11-30

Simulator used to practice emergency responses safely

Emergency responses of the police, ambulance, and rescue services are associated with a high risk of accidents, but practicing them in real traffic is neither safe nor permissible. A simulator-based method developed by the Swedish National Road and Transport...


2017-10-26

Simulation of cut-in by manually driven vehicles in platooning scenarios

A study in a VTI-driving simulator has showed that a platoon will be able to handle a cut in from a manually driven car. The results of this study have recently been presented at two conferences in Japan.


2017-10-16

ERPUG Forum

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.


2017-09-29

Self-driving buses in Sweden next year?

A self-driving, fossil-free bus. This idea might become reality through a forthcoming collaborative project involving the Swedish National Road and Transport Research Institute (VTI), Linköping University and several other participants. The project group aim...