Can light engineering measures make a difference? An overview of the effect of delineation and signage on road safety

Abstract

The objective of this study is the examination of several light engineering measures with the explicit purpose of
assessing their impact on road safety. Examined categories include delineation and road markings, which can be
longitudinal for road segments and transversal for junctions, and installation and maintenance of traffic signs,
investigated both in functioning workzones and otherwise. This analysis was carried out within the SafetyCube
project. Existing studies were selected and analysed in a set taxonomy consisting of 5 measures: signage
installation and improvement for workzones, road markings implementation, installation of chevron signs,
edgeline rumble strips and lastly traffic sign installation and traffic sign maintenance. A clearly defined
methodology was developed including rigorous literature search, analysis of studies in terms of design, methods
and limitations and synthesis of findings and meta-analyses, when feasible. The results of the present study offer
valuable insights that were previously undefined can be generalized for other cases with the essential caution due
to study particularities.

Original document

The different versions of the original document can be found in:

• https://zenodo.org/record/1486650 under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode

• http://dx.doi.org/10.5281/zenodo.1486649,

https://zenodo.org/record/1486650 under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode

• https://zenodo.org/record/1486650,

http://dx.doi.org/10.5281/zenodo.1486650 under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode

DOIS: 10.5281/zenodo.1486649 10.5281/zenodo.1486650