Halkvarnare för applicering på vägbanan: test av prototyp i laboratorium och i fält
2008 (Swedish)Report (Other (popular science, discussion, etc.))
In order to draw the attention of drivers to slippery conditions, ice warning
sensors for application on carriageways have been developed. These are
expected to react to the temperature of the road surface, which would be an
advance compared with existing warning sensors in the vehicle that measure the
air temperature. The aim of this project is to investigate the function of
these types of ice warning sensors. This will be done both in a laboratory
environment and in the field in the winter before and after the warning sensor
has been exposed to the effect of studded tyres, snow ploughs and salting. The
type of ice warning sensor that was available consisted of a yellow background
plate with a symbol in the form of a snow star punched out from the middle.
According to the manufacturer, this symbol was to change colour, from yellow
to dark orange, at a temperature of +2°C. The test was divided into three
stages, preliminary field tests on roads without traffic (Stage 1), laboratory
tests in a controlled climate room (Stage 2), and field tests on roads both
with and without traffic (Stage 3).
Place, publisher, year, edition, pages
Linköping: VTI., VTI notat 26-2007 , 2008. , 40 p.
Icy road, Sensor, Detection, Surfacing, Temperature, Test, Laboratory, In situ, Measurement, Observation, Visibility, Prototype, Colour, Change
Research subject Road: Maintenance, Road: Winter maintenance
IdentifiersURN: urn:nbn:se:vti:diva-1659OAI: oai:DiVA.org:vti-1659DiVA: diva2:670371