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Halkvarnare för applicering på vägbanan: test av prototyp i laboratorium och i fält
Swedish National Road and Transport Research Institute.ORCID iD: 0000-0001-5769-7193
Swedish National Road and Transport Research Institute.
2008 (Swedish)Report (Other (popular science, discussion, etc.))
Abstract [sv]

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.
VTI notat
Keyword [en]
Icy road, Sensor, Detection, Surfacing, Temperature, Test, Laboratory, In situ, Measurement, Observation, Visibility, Prototype, Colour, Change
Research subject
Road: Maintenance, Road: Winter maintenance
URN: urn:nbn:se:vti:diva-1659OAI: diva2:670371
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2016-02-25

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Nygårdhs, SaraMöller, Staffan
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