Welcome on piarc.org!

PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

This site uses cookies to optimize its operation. They allow you to securely access your personal space and download our publications. You accept their use by clicking on the "Accept" button.

All PIARC Publications

There are 87 results for your search

  • Impact of New Propulsion Technologies on Road Tunnel Operations and Safety - A PIARC Technical Report

    Alternative propulsion technologies, including battery-electric vehicles, are becoming more prevalent. Whilst such vehicles remain a small overall proportion of the vehicle fleet, the combination of impacts of Government policy and technological advances in alternative fuels is expected to accelerate [...]

    • Date : 2023
    • Pages : 74
    • PIARC Ref. : 2023R34EN
    • ISBN : 978-2-84060-822-6
  • Saving Lives Around the World With Proven Countermeasures - Technical Report

    Saving Lives Around the World With Proven Countermeasures - Technical Report

    • Date : 2023
    • Pages : 44
    • PIARC Ref. : 2023R32EN
    • ISBN : 978-2-84060-811-0
  • Improving Road Tunnel Resilience, Considering Safety and Availability - Technical Report

    This report presents a road map to improve the resilience of road tunnels, based on a literature review, a collection of case studies and the knowledge and experience of the members of Working Group 2 “Safety and Resilience” of PIARC Technical Committee 4.4 “Tunnels”. The content of the report [...]

    • Date : 2023
    • Pages : 309
    • PIARC Ref. : 2023R26EN
    • ISBN : 978-2-84060-801-1
  • Specific Road Safety Issues for LMICs: Illustrative Examples - Collection of Case Studies

    The overview of illustrative examples of road safety measures in LMICs as described in this report is a follow up of an earlier literature review, in which we indicated which specific issues do need further attention in LMICs in the coming period up to 2030. The following issues were considered: [...]

    • Date : 2023
    • Pages : 30
    • PIARC Ref. : 2023R13EN
    • ISBN : 978-2-84060-775-5
  • Road Safety in LMICs: Identification and Analysis of Specific Issues - Literature Review

    This report is a deliverable of PIARC working group 3.1.1 Specific road safety issues for LMICs. The working group performed its activities in the period 2019 – 2023. We prepared two deliverables: a) a literature review and b) an overview of case studies. The present report gives the literature [...]

    • Date : 2023
    • Pages : 44
    • PIARC Ref. : 2023R07EN
    • ISBN : 978-2-84060-749-6
  • Good Practices in Maintenance and Traffic Operation of Heavily Trafficked Urban Road Tunnels - Technical Report

    Maintenance and operation of heavily trafficked urban road tunnels is one of, if not the most outstanding challenge for authorities, owners, operators and designers of tunnels. This full report makes amends in detailing the challenges and inherent good practices for maintenance and operation from traffic [...]

    • Date : 2022
    • Pages : 59
    • PIARC Ref. : 2022R34EN
    • ISBN : 978-2-84060-734-2
  • Well-Prepared Projects

    This collection of case studies includes 17 cases from 10 different countries participating in this task force, plus one case dedicated to the use of the SOURCE platform in the preparation of transportation projects. It comes after our first report delivered earlier in 2021 in which we reviewed the [...]

    • Date : 2022
    • Pages : 123
    • PIARC Ref. : 2022R12EN
    • ISBN : 978-2-84060-687-1
  • Documents Relevant to Road Infrastracture and Transportation Security - Literature Review

    This document contains a review of literature on road infrastructure and transport security. The review focuses on the following topics: · Legislations and policies; · Standards; · Studies and researches; · PIARC reports; · Other reports; · Manuals and books; · Case studies [...]

    • Date : 2022
    • Pages : 265
    • PIARC Ref. : 2022R07EN
    • ISBN : 978-2-84060-682-6
  • Good Practices in Maintenance and Traffic Operation of Heavily Trafficked Urban Road Tunnels - Collection of Case Studies

    The aim of the case study collection report is to gather, evaluate and comment on international expertise related to maintenance and traffic management in highly trafficked urban road tunnels. A large number of cases were collected, which were particularly suitable for providing an insight into the [...]

    • Date : 2022
    • Pages : 32
    • PIARC Ref. : 2022R06EN
    • ISBN : 978-2-84060-681-9
  • Impact of New Propulsion Technologies on Road Tunnel Operations and Safety - Literature review

    Alternative propulsion technologies, including battery-electric vehicles, are becoming more prevalent. Whilst such vehicles remain a small overall proportion of the vehicle fleet, the combination of impacts of Government policy and technological advances in alternative fuels is expected to accelerate [...]

    • Date : 2022
    • PIARC Ref. : 2022R05EN
    • ISBN : 978-2-84060-680-2
  • Improving Road Tunnel Resilience, Considering Safety and Availability - Literature Review

    This report presents a review of literature on the improvement of road tunnel resilience as well as a collection of case studies that illustrate how this topic is being dealt with in practice. The content of the report is addressed at several target groups involved in the planning, design, implementation, [...]

    • Date : 2022
    • Pages : 191
    • PIARC Ref. : 2022R04EN
    • ISBN : 978-2-84060-679-6
  • Automated Vehicles - Challenges and Opportunities for Road Operators and Road Authorities - Technical Report

    Vehicle Automation – at SAE levels 3, 4 and 5 – is still in a testing phase in most countries. Many tests at level 3 have been performed successfully on open roads without any changes to the road infrastructure and without any observed impacts on congestion. There are various situations which necessitate [...]

    • Date : 2021
    • Pages : 83
    • PIARC Ref. : 2021R03EN
    • ISBN : 978-2-84060-653-6
  • Improving Road Tunnel Resilience, Considering Safety and Availability - Literature Review

    This report contains a review of literature on road tunnel resilience, including more general literature on resilience principles or aspects that could be applied to tunnels. Many definitions for “resilience” were found, but the Working Group decided on the following definition in the context of [...]

    • Date : 2021
    • Pages : 207
    • PIARC Ref. : 2021LR01EN
    • ISBN : 978-2-84060-631-4
  • Road Safety - Catalogue Of Case Studies - Rapport technique

    Knowledge comes from the analysis of successes and un-successes. Case Studies collection represents an important step toward the construction of knowledge. PIARC Case Studies Catalogue contains the description of a set of interventions designed, implemented and operated worldwide to improve road safety [...]

    • Date : 2019
    • Pages : 385
    • PIARC Ref. : 2019R47EN
    • ISBN : 978-2-84060-604-8
  • Large Underground Interconnected Infrastructure - Technical Report

    This report is a continuation of the previous one published in 2016: “Road tunnels: complex underground road networks” (2016R19EN). Its objective is twofold: extend the panel of networks investigated, both geographically and in terms of their complexity and diversity, analyse in a much [...]

    • Date : 2019
    • Pages : 97
    • PIARC Ref. : 2019R42EN
    • ISBN : 978-2-84060-594-2
  • Implementation of National Safe System Policies: A Challenge - Technical Report

    This report provides a contribution to global road safety through a summary of National Safe System Policies and Implementation in relation to the Safe System approach. The report also highlights the steps that low, middle and high-income countries alike can take to accelerate progress towards Safe [...]

    • Date : 2019
    • Pages : 80
    • PIARC Ref. : 2019R39EN
    • ISBN : 978-2-84060-585-0
  • Road Safety Evaluations Based on Human Factors Method - Technical Report

    The objective of this report is to instruct responsible road authorities on how to evaluate road safety quality along roads in operation, coupling the well-known reactive approach, based on accident data analysis and high accident concentration sections (or black spots) identification and prioritization, [...]

    • Date : 2019
    • Pages : 110
    • PIARC Ref. : 2019R27EN
    • ISBN : 978-2-84060-561-4
  • 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 [...]

    • Date : 2019
    • Pages : 43
    • PIARC Ref. : 2019R26EN
    • ISBN : 978-2-84060-560-7
  • General Principles to Improve Accessibility for Persons with Reduced Mobility in Road Tunnels - Technical Report

    The report provides the general principles that apply when making allowances for persons with reduced mobility in road tunnels. The means of facilitating their ability to raise the alarm, and to evacuate in critical situations, are examined. Facilities and examples from the following countries are provided: [...]

    • Date : 2019
    • Pages : 55
    • PIARC Ref. : 2019R20EN
    • ISBN : 978-2-84060-543-0
  • Security of Road Infrastructure - Technical Report

    TF C.1 concentrated on "security of infrastructure, transported goods and persons". This decision was based on the experience that, despite the occurrence of incidents taking advantage of the layout and design of road infrastructure to target areas used by pedestrians in order to cause harm, some Road [...]

    • Date : 2019
    • Pages : 84
    • PIARC Ref. : 2019R12EN
    • ISBN : 978-2-84060-524-9
  • Connected Vehicles - Challenges and Opportunities for Road Operators - Technical Report

    The deployment of Vehicle-to-Infrastructure (V2I) and Vehicle-to-Vehicle (V2V) communication, also known as cooperative intelligent transport systems (C-ITS) is speeding up in many developed countries. For example, Japan has already an operational system at national level, the United States are considering [...]

    • Date : 2019
    • Pages : 84
    • PIARC Ref. : 2019R11EN
    • ISBN : 978-2-84060-522-5
  • Introduction to the RAMS Concept for Road Tunnel Operation - Technical Report

    Road tunnel operators are increasingly aiming to adopt a sustainable approach to road tunnel operation whenever possible. They are thus starting to look into ways of optimising the lifecycle performance of systems and equipment, whilst at the same time guaranteeing the required level of safety. One [...]

    • Date : 2019
    • Pages : 38
    • PIARC Ref. : 2019R05EN
    • ISBN : 978-2-84060-504-1
  • Prevention and Mitigation of Tunnel-Related Collisions - Technical Report

    Because a road tunnel is an enclosed space, many tunnel safety measures are rightfully aimed at controlling the risks of fires and dangerous goods. However, practice generally shows that most injuries and fatalities in tunnels are actually related to traffic incidents that could also happen on the open [...]

    • Date : 2019
    • Pages : 255
    • PIARC Ref. : 2019R03EN
    • ISBN : 978-2-84060-502-7
  • Road Tunnels: Vehicle Emissions and Air Demand for Ventilation - Technical report

    The design of a road tunnel ventilation system must consider fresh-air demand for maintaining in-tunnel air quality during normal and congested traffic operations and the control of smoke and hot gases in case of fire. The ventilation capacity to manage a fire incident frequently drives the ventilation [...]

    • Date : 2019
    • Pages : 61
    • PIARC Ref. : 2019R02EN
    • ISBN : 978-2-84060-500-3
  • Land use and safety: an introduction to understanding how land use decisions impact safety of the transportation system

    Unplanned communities create hazards for road users of all types generating unsafe conditions for motorists on the roadway and significant dangers for pedestrians, bicyclists and residents alongside or adjacent to the road. While the World Road Association continues to investigate options and recommendations [...]

    • Date : 2017
    • Pages : 44
    • PIARC Ref. : 2016R32EN
    • ISBN : 978-2-84060-440-2