Review of Global Road Safety Audit Guidelines – With Specific Consideration for Low- and Middle-Income Countries - Technical Report

This report has involved a comprehensive review of current Road Safety Audit Manuals and Guidelines from a range of different countries to establish current practices and considers previous international reviews to determine key areas where additional guidance is required, or exemplar practice is well established. Initial consideration was given to the core issues facing many countries regarding implementing a comprehensive audit system. These included: Variability of situations across LMICs [...]

Best Practice Guide to Air Quality in Relation to Road Operations - Technical Report

Air pollution linked to road transport has received significant political, media and public attention since the mid 2010s. However, despite improvements in vehicle efficiencies over past decades, emissions from vehicles still contribute significantly to concentrations of air pollutants above standards in many cities around the world. The European Environmental Agency noted that:  Road transport remains an important source of some of the most harmful air pollutants. In particular, road transport [...]

Setting Credible Speed Limits - Case Studies Report

This report of case studies on the topic of speed limits includes a series of implemented countermeasures or experimental proofs of concept to help improve the road safety in a specific location or area. PIARC didn´t work on specific speed issues in the past periods, therefore this report also contains a short theoretical introduction concerning the role of speed in road safety and the importance to set speed limits that are credible for road users. Credible is in general an individual task and [...]

Big Data For Road Network Operations - Technical Report

Currently, several technological developments are influencing the day-to-day work of road network operators. Automation, internet of things (IoT), smart systems, mobility services, artificial intelligence and big data are aiming to improve traffic operations and enhance mobility. Among these technologies, big data and big data processing technologies are key enablers for all other technologies. Big data has the potential to influence the whole value chain in the road transport sector.  The scope [...]

State of the Art in Monitoring Road Condition and Road / Vehicle Interaction - Technical Report

This report is a follow-up on the report "State of the art in monitoring road condition" which was finalised in 2015 (PIARC reference 2016R17EN). The 2015 report summarises the then current state of the art regarding the collection of road condition and road/vehicle interaction data, providing an overview of current practice and emerging technologies. The current report is an update of some chapters due to new findings as a result of recent research. It also discusses technologies in the development [...]