PIARC publications from 2020 - 2023 work cycle

This page presents the technical reports of the 2020-2023 work cycle of PIARC (World Road Association). They are available in one or more of the three working languages of the Association which are French, English and Spanish and have been published after a meticulous validation and quality control exercise.

These reports will be published as they are drafted by our Technical Committees, which work according to the objectives set out in the Strategic Plan 2020 - 2023. Reports from the previous work cycle are already available on this page.

They are accessible directly by clicking on the reference in the right column of the table below. This follows the structure of the 2020 - 2023 Strategic Plan.

  1. Strategic Theme 1 - Road Administration
  2. Strategic Theme 2 - Mobility
  3. Strategic Theme 3 - Safety and Sustainability
  4. Strategic Theme 4 - Resilient Infrastructure
  5. Special Projects
  6. PIARC Technical Reports on the COVID-19 crisis

PIARC publishes numerous technical reports, which are reference documents that are widely used in the road and transport sectors. They complement other publications of the Association such as the Routes / Roads magazine, Proceedings of international congresses, Proceedings of international seminars and online Manuals.

These technical reports are the output of the work of over 1,000 experts during a four-year work cycle. Their involvement and professionalism must be underlined. They are mobilized within Technical Comittees or Task Forces as defined by the Strategic Plan, which structures the activities of the Association and aims to meet the expectations and needs of road administrations and operators and all members of the Association. These reports thus constitute a wealth of information, made available to all. They offer state of the art international best practices on roads and road transport in a context of integrated and sustainable development.

These technical reports are available free of charge as part of the knowledge sharing and dissemination mission that guides the Association. All language versions are presented simultaneously here, to take into account the reading preferences of each user.


Strategic Theme 1 - Road Administration

TC 1.1 Performance of Transport Administrations


TC 1.2 Road and Transport Planning for Economic and Social Development


TC 1.3 Finance and Procurement


TC 1.4 Climate Change and Resilience of Road Networks


TC 1.5 Disaster Management


TF 1.1 Well-prepared Projects

  • How Countries Undertake Well-Prepared Projects: A Review on Ten Countries

    It is well acknowledged that good project preparation tends to deliver better outcomes (benefits) as well as providing good project management performance (with respect to budget, delays and quality). This report presents processes put in place in 10 countries to deliver well-prepared transport projects. This literature review is the first task force deliverable, and it aims to identify good practices found in countries of different income levels and moreover of different cultures. All ten members [...]


Strategic Theme 2 - Mobility

TC 2.1 Mobility in Urban Areas


TC 2.2 Accessibility and Mobility in Rural Areas


TC 2.3 Freight


TC 2.4 Road Network Operation / Intelligent Transportation Systems


TF 2.1 New Mobility and its Impact on Road infrastructure and Transport


TF 2.2 Electric Road Systems (ERS)


TF B.2 Automated Vehicles – Challenges and Opportunities for Road Operators and Authorities

  • Automated Vehicles - Challenges and Opportunities for Road Operators and Road Authorities

    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 that a driver takes control of the vehicle – a fall-back solution that is still allowed at level 3, but not at level 4 or 5. It is likely that some support from the infrastructure will be [...]


Strategic Theme 3 - Safety and Sustainability

TC 3.1 Road Safety


TC 3.2 Winter Service


TC 3.3 Asset Management


TC 3.4 Environmental Sustainability in Road Infrastructure and Transport


TF 3.1 Road Infrastructure and Transport Security


Strategic Theme 4 - Resilient Infrastructure

TC 4.1 Pavements


TC 4.2 Bridges


TC 4.3 Earthworks

  • Increasing Resilience of Earth Structures to Natural Hazards

    This report provides preliminary background on the topic of “Increasing Resilience of Earth Structures to Natural Hazards” assigned to WG1 of PIARC TC 4.3 as part of the 2020-2023 Work Program. This topic will be further developed as part of the 2020-2023 Work Cycle and is expected to be completed by two adittional documents for this topic: a Case Studies Report and a Full Report. This Literature Review provides general insight on how the concept of resilience is currently being considered among [...]


TC 4.4 Tunnels

  • Improving Road Tunnel Resilience, Considering Safety and Availability - PIARC 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 tunnels: “The ability to prepare and plan for, absorb, recover from, or more successfully adapt to actual or potential negative effects of events or developments affecting the availability of a road [...]


TF 4.1 Road Design Standards


Special Projects

  • Road Related Data and How to Use it

    The management of road infrastructure has been experiencing major changes over the past decade, mostly due to the increased demand from road users, the increased deterioration of road infrastructure and from the evolution of user expectations. In addition, new challenges such as climate change and emerging (and potentially disruptive) technologies and service models are changing supply and demand dimensions as well as offering data collection and analytics capability in their own right. This has [...]

  • The Contribution of Road Transport to Sustainability and Economic Development

    Road transport and road infrastructures are keys to the evolution and prosperity of modern society. Connecting people and places, goods and services in safe, efficient and sustainable way is essential for creating and maintaining sustainable and inclusive growth across society and the economy. This report introduces a constellation of known literature and studies that underline main points, while it refers to a series of interviews with key stakeholders and influencers from the road transport industry. [...]


PIARC Technical Reports on the COVID-19 crisis

  • COVID-19: Survey of Impacts and Responses from the Global Roads and Transport Sector

    In March 2020, the COVID-19 pandemic took hold across the world, creating massive impacts and challenges for multiple sectors, including roads and transport. PIARC took action rapidly, forming a COVID-19 Response Team and initiating a programme of knowledge-sharing webinars.  The Response Team also launched a global questionnaire survey. The intention was to assess how road and transport agencies, operators and other organizations were coping with COVID-19 pandemic and to identify responses and [...]

  • COVID-19: initial impacts and responses to the pandemic from road and transport agencies

    The road transport sector, and the organisations and professionals who manage it, is an essential service and PIARC recognized the potential for COVID-19 to cause severe disruption to the road transport sector early on. In mid-March 2020, PIARC moved to establish a formal PIARC COVID-19 Response Team to explore the rapid sharing of knowledge and practice between PIARC members in terms of pandemic impacts, associated economic and social crisis and the relevant responses. Activities were rapidly launched [...]

  • COVID-19: Key Lessons for the Road and Transport Community from the Latest PIARC Webinars

    PIARC organizes weekly online discussions on the response to the COVID-19 crisis. They are open to experts appointed by their National PIARC First delegate and to PIARC Technical Committee / Task Force members. The objective of the sessions is to share knowledge and current practice between PIARC members urgently in order to support responses to the pandemic in near real-time.

  • COVID-19: Key Lessons for the Road Community from the first PIARC Webinars

    PIARC organizes weekly online discussions on the response to the COVID-19 crisis. They are open to experts appointed by their National PIARC First delegate and to PIARC Technical Committee / Task Force members. The objective of the sessions is to share knowledge and current practice between PIARC members urgently in order to support responses to the pandemic in near real-time.

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