Mobil mätning av vägbelysning

Sven-Olof Lundkvist
Stig Englundh

For most types of road equipment there are regulations that set the performance requirements. For example, a road marking must have a minimum retroreflectivity for it to have sufficient visibility. Regarding road lighting there are multiple performance requirements in the Swedish Transport Administration's requirements for road and street design (VGU), including requirements for allowed glare, demands on shielding, illuminance and road surface luminance. On most roads and streets, the luminance requirement is the most important parameter, not least because this is important for the possibility of detecting pedestrians.

For a requirement in the regulations to be meaningful, it is important that it is possible to check if the requirements are met. However, luminance measurements are complicated and susceptible to interference from ambient light sources.

The purpose of this study was to develop a prototype of an instrument which enables fast mobile measurements of road surface luminance without the risk of interference from other traffic.

Completed tests with the instrument have shown that the measurement of road surface luminance on longer sections can be performed, without light interference from other traffic. The measurements are also relatively rapid and requires a minimum of manual data processing. The measurement system additionally has good accuracy which makes it suitable for condition assessment of road lighting.



Cost Benefit Analysis (CBA) workshop in Stockholm

An open seminar and workshop in Stockholm will be held on 25-26 April 2018. The workshop deals with the use of CBA as a basis for decision-making in the public sector. The workshop is organized by, among others, Professor Jan-Eric Nilsson, VTI.



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.


Steps need to be taken to increase traffic safety of automated cars

Several steps are necessary to ensure that automated and connected cars will lead to increased traffic safety – everything from ensuring that technology takes vulnerable road users into account, to new forms of driver training. This has emerged in a position...


FALCON examines challenges in the transport sector

VTI is one of several important partners in the major FALCON project*, whose purpose is to create knowledge and insight regarding the transport sector. In an initial subproject, VTI has produced a manual on transport, logistics and multimodality.


VTI joined research cooperation in China

In December 2017 VTI became a member of China-Sweden Research Centre for Traffic Safety (CTS).


Swedish German research collaboration on Electric Road Systems

The project “Swedish-German research collaboration on Electric Road Systems” (CollERS) has now officially started. The goal of the project is to increase the common knowledge around Electric Road Systems by cooperation between Germany and Sweden and to...


Electric Road Systems Conference 2018

After a successful first conference in June 2017, the Swedish research and innovation platform for electric roads is arranging the second dedicated International Conference on Electric Road Systems (ERS) June 13th and 14th 2018.