New technology for road surface measurement: transverse profile and rut depth

Download
Thomas Lundberg
Thomas Wahlman
Peter Ekdahl

The condition of the national coated road network is measured annually in Sweden and Finland. The measuring technology has been unchanged over a long period of time, which has its benefits. As the measurements are performed using the same technology, trends and measurement series are retained without any disruption. In addition, the technology currently used is reliable and can be procured at a price level that has fallen rather than risen over the years. The principal area of use for condition measurement is to provide maintenance work with an objective basis for the planning of surfacing, but when it is found that current objective condition data can only explain between 40 and 75 percent (depending on class of traffic) of the action actually taken on the road network, consideration must be given to whether new condition data need to be added. The information that is lacking is thought to be information on surface damage and cracks. This requires new measuring technology.

If new technology will be adopted, for the collection of condition data, the dependability of the basic measured quantities must be ensured before new options and measured quantities are examined. This study is therefore focused only on transverse-profile measurement and measures of unevenness in the transverse direction (rut depth and ridge height).

The study has examined two of the leading new technologies that operate with scanning lasers, LCMS from Pavemetrics and PPF from Fraunhofer. The outcome of the study shows that the technology is good, and that accuracy and repeatability are comparable to the present-day point-laser systems. It is also deemed possible to retain criteria and requirements for the procurement of measurement services when the new technology is used.

MEET US


8-9
Oct

Social sustainability and just mobility

Welcome to a research workshop on Social sustainability and just mobility, 8–9 October 2019 in Linköping, Sweden
16-18
Oct

European Road Profile User's Group, ERPUG

Welcome to the sixth ERPUG meeting in Vilnius, Lithuania. 
4-5
Dec

Vision Zero for Sustainable Road Safety in the Baltic Sea Region

The second Vision Zero for Sustainable Road Safety in the Baltic Sea Region conference will be held in Tallinn, Estonia. VTI is part of the programme committee. 

LATEST NEWS


2019-08-19

A driving licence withdrawal can have major consequences in everyday life

A withdrawn driving licence can have negative consequences for a person’s ability to shape their own life. A study from VTI investigates how individuals with visual field loss have been affected by no longer being permitted to drive.


2019-08-13

Measuring sleepiness – a challenge for researchers

Driver fatigue has been a research area at VTI for several years, and the researchers have studied various aspects such as the working hours of professional drivers, driver behaviour, accident risks, and the design of warning systems. They are now moving...


2019-05-09

Knowledge in the fight against microplastics from road traffic

The Government has commissioned VTI to develop and disseminate knowledge regarding the emission of microplastics from road traffic.


2019-05-07

How to make autonomous vehicles coexist with other traffic

The road infrastructure must be prepared for self-driving vehicles – especially in the beginning when the concepts are still new. Researchers are contributing to this through CoEXist, an EU-funded research project in which VTI participates as the largest...


2019-05-03

Electric roads: ‘Standardisation is an important factor for a future European transport system’

VTI employees recently arranged a workshop in Brussels on the standardisation of Electric Road Systems (ERS). ERS has become increasingly relevant as a possible method for reducing the transport sector's environmental impacts, especially in terms of climate...


2019-04-23

Research on passenger and freight transport research

Shift2Rail is a European railway project that works actively to create innovations within the railway sector. IMPACT-2 is a project within Shift2Rail that follows and evaluates the innovation projects. How are the innovations coming along? Are they beneficial...