Skip to main content

Visible road markings: an essential for older drivers and intelligent vehicles

The RAINVISION project, co-financed by the European Commission, recently held its final meeting. Over the past three years, the project has researched the impact of road markings on driver behaviour under different night weather conditions (dry, wet and wet and rainy) and has assessed how different age groups and gender groups adapt their driving based on the above mentioned conditions. The results of the project were presented and in particular, the outcomes of three different trials conducted over the pro
March 20, 2015 Read time: 3 mins
The RAINVISION project, co-financed by the 1690 European Commission, recently held its final meeting. Over the past three years, the project has researched the impact of road markings on driver behaviour under different night weather conditions (dry, wet and wet and rainy) and has assessed how different age groups and gender groups adapt their driving based on the above mentioned conditions.

The results of the project were presented and in particular, the outcomes of three different trials conducted over the project period.

A driving simulator test in France investigated the influence of road markings on drivers’ errors (involuntary run-off-the-road and lane departures) under wet and rainy night conditions. On a simulated rural road combining straight sections and curves, 40 per cent less driving errors were observed with wet-night visible road markings compared to standard markings. The biggest gap was observed for elderly drivers.

The results of the second trial, a track test in Austria reinforced these findings and also showed that, under adverse driving conditions, driving task could be performed better when high-performance marking material was used. Older drivers in particular seemed to benefit from wet-night visible markings, as clearness and perceptibility of the driving trajectory increased when such materials were used.

The on-road trials were carried out in the UK in cooperation the city of Durham.  Working with project partners and traffic police, ten high accident sites were identified and high-performance marking materials were applied on these selected locations. The results of the analysis showed that, on average, those high-performance markings did not lead to an increase of speed.  At the same time, accidents had increased over the same period, although an analysis of police records could not link any of the accidents to the presence of better markings.
The meeting also examined how road markings can help maximise the safety benefits of advanced driver assistance systems (ADAS) in the intelligent vehicle.  Systems such as Lane Departure Warning and Lane Keeping Assist, that prevent drivers from head-on collisions and run-off accidents, will become more commonplace in the years to come and in this sense, it is important that markings can remain visible to tap into the significant safety gains that can arise from these new technologies.

Given that reductions in road fatalities become disproportionately harder as the road safety figures improve, all participants agreed that the introduction of ADAS technologies, in cooperation with core infrastructure elements such as road markings, could make a difference in the years to come.  In this sense, there was a consensus on the need for further research in the field, i.e. field operational tests, to better understand how the interaction of infrastructure and ADAS can work optimally to save lives and prevent injuries.

Some initial research work conducted under the auspices of EuroRAP under the Road that Cars can Read initiative found that road markings should have a minimum retroreflectivity of 150 mcd/m2/lux under dry weather conditions (R3) and 35 mcd/m2/lux under wet and rainy conditions, if they are to remain visible for the driver and the intelligent vehicle at all times. In the opinion of ERF, all A-roads within the EU should comply with this specification by March 2018.

For more information on companies in this article

Related Content

  • Intersection management, cooperative infrastructures - what next?
    February 1, 2012
    What do recent vehicle recalls mean for future cooperative infrastructures? Anthony Smith takes a look. As ITS industry stakeholders converge on Amsterdam for the 2010 Cooperative Mobility Showcase, an unprecedentedly wide range of technologies will be on display demonstrating what might be achievable in the future from innovations based on Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) communications.
  • Most Honda owners turn off lane departure warning, says IIHS
    March 8, 2016
    Owners of Hondas with crash avoidance features are much more likely to have forward collision warning turned on than lane departure warning, IIHS researchers found in a recent observational survey. The researchers observed vehicles brought in to Honda dealerships for service. They found that all but one of 184 models equipped with the two features had forward collision warning turned on, while only a third of vehicles had lane departure warning activated. IIHS says the findings are consistent with pre
  • Data crunching ‘can prevent cars crashing’
    March 25, 2013
    Having already cut traffic collisions resulting in injuries and deaths by nearly forty per cent in five years by analysing patterns from data it has collected, the city of Edmonton, Canada, is using predictive technologies to increase road safety even more. The city’s Office of Traffic Safety (OTS) has installed as many as 200 digital signs as just one element of an innovative traffic safety program that has dramatically reduced vehicle collisions in the Edmonton region since OTS launched in late 2006. Unde
  • Transport planning consultation is culturally important
    February 2, 2012
    Andrew Bardin Williams explores the efforts under way in North Dakota to consult with native tribes during the early stages of transportation project development. These efforts have led to the signing of a Programmatic Agreement between the state DOT and local tribes and the creation of a tribal consultation committee that allows Native Americans to advise on the identification, evaluation and treatment of historic properties, including those of religious and cultural significance