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A review of the rules and practices concerning the safe distance between two vehicles on roads
was performed in 2007 and 2008 by members of CEDR’s TG Road Safety.
Member countries were asked to answer the following questions:
- Is there a regulation that governs the safe distance between vehicles in your country?
- If so, what are the rules (e.g. leave at least 2 seconds following distance to the vehicle in
front)?
- Have you experienced any problems enforcing these rules?

Contractor Report 2017-1 offers guidance and advice to road organisations for establishing a formal Asset Management System that will help organisations to obtain value from their assets. It represents the primary output of the ARISE research project, which was funded under CEDR Call 2014 Asset Management and Maintenance.

The report is to assist NRAs in the planning, building and maintaining processes of noise barriers. The first part is dedicated to the different acoustic and non-acoustic standards and guidelines used to insure performance. The second focuses on the types of barriers, looking at the aesthetic appeal, shapes and materials with a reference to the experience from the CEDR member countries. The last chapter offers a review of recent research projects on noise reducing devices.

Ce rapport a été rédigé par l'équipe 'Safety at the Heart of Road Design' (la sécurité au cœur de la conception des routes) de l'IRDES ERA-NET

The EU Water Framework Directive (WFD) aims to protect and improve the ecological status of water bodies in order to promote sustainable watershed use. Consequently, NRAs must ensure that their water management practices meet the requirements of the WFD. This report examines; when should contaminated runoff water be treated to meet the requirements in relevant EU directives (e.g. the WFD), what is the best practice when treatment is mandatory, and what will the research needs on these matters be within the next decade?

CEDR Technical Group Road Safety (TGRS) is very proud to have delivered one of the most significant documents in recent years on the subject of forgiving roadsides. CEDR has identified the design of forgiving roads as one of the top priorities within its Strategic Plan 2009–2013 and this reflects the work done by the CEDR-ERANET 'IRDES' project.
The roadside features for which the Forgiving Roadsides Design Guide has been developed are barrier terminals, shoulder rumble strips, forgiving support structures for road equipment, and shoulder width. Each feature is analysed in a separate section of the guide.

This report includes a complete catalogue of the different funding formulas currently available for roads and an assessment on which ones are more suitable regarding certain criteria defined in the document.

CEDR's intention in producing the TEN-T (Roads) Performance Report is to establish a stable set of data with which to monitor trends and identify changes in the performance of the TEN-T road network.

This report reflects the findings of the CEDR Task Group on Asset Management within CEDR Strategic Plan 3 - 2013-2017 (SP3), aiming to provide a perspective on strengthening of cooperation and learning from road agencies in Europe within the asset management arena.

This Technical Report primarily on the collection, dissemination, implementation and use of results from research and development of noise-reducing pavements from recent innovative research projects undertaken within specific CEDR member states. The report can be seen as a handbook presenting the European state of the art in the mid-2010s. The target group for this report is road engineers, planners and decision makers.

The purpose of this report is to inform NRAs about the results of the CEDR Task group on Building Information Modelling (BIM). This has the goal to enhance the possibilities of the client in handling data and improving the quality of data using open BIM standards in the lifecycle of assets.

The report presents a CEDR wide review of issues related to efficient road transport and heavy vehicle issues. Considerations include the regulatory issues such as weights and dimensions relating to road safety and infrastructure protection.

Fourth biennial report on the performance of the TEN-T (Roads) network within CEDR member countries. The report is a useful source of information for individual National Road Administrations (NRAs), regulatory bodies, and others for benchmarking purposes and for setting national performance targets.

Bu affeden yol kenarları kılavuzu, yol kenarlarını affedici yapmak için örnek uygulama iyileştirmeleri derlenmiş ve uyumlulaştırılmıştır. CEDR Yol Güvenliği Teknik Ekibi, yol güvenliği üzerine çalışan tüm uygulayıcılara bu kılavuzu tavsiye etmektedir.
This Forgiving roadsides design guide is a harmonised collection of best practice treatments to make roadsides forgiving.

For NRAs, it is important to recognise changes in time in order to reduce greenhouse gas emissions and provide more resilience for existing and proposed roads. Acting on climate change is not a unified topic for road owners; both mitigation and adaptation to climate change are different sub-topics. Despite the dissimilarities, adaptation and mitigation share the need for long-term planning for an uncertain but undoubtedly different future. Both topics are, therefore, presented in this report.

The remit of Traffic Incident Management (TIM) is to develop joint working practices between national road administrations, the police, and other incident responders to ensure the mutual achievement of objectives including the safety of both road users and responders, reduced congestion and economic costs, and improved travel reliability and efficiency

The latest innovative research in the areas of noise reducing pavements, noise barriers, and
cost-benefit analysis (CBA)/cost-effectiveness analysis (CEA) was comprehensively reviewed
and assessed by CEDR Task Group I6 (Road Noise).

At its meeting in Warsaw, the Governing Board approved a new strategy for the organisation. The CEDR Strategy comprises the Vision, Mission and Strategic Goals.

CEDR commissioned the ECOROAD project to produce this Roads and Wildlife Manual which complements the work of COST 341 and integrates the “Harmony”, “SAFEROAD” and “SafeBatPaths” projects together with further input from European road ecology experts. The aim is to update COST 341 to reflect changes such as those in European Union legislation and policy. The manual also identifies best practice in areas such as procurement, maintenance and monitoring.

Standardisation and simplification of the working processes of your NRA and improved validation of your data and improved infrastructure at lower costs is the expected result of using BIM.

This report presents an introduction to economical assessment methods in general and their potential role in the decision-making process of noise impact assessments or implementation of noise mitigation measures in national road administrations.

Written by CEDR's Road Safety Group and endorsed the Governing Board of the European Road Directors, this paper highlights some key challenges for NRAs emphasising the need to maintain the ongoing open and creative discussion across the NRAs to work together to advance Road Safety.

This Final Programme Report covers two projects (ASAP and BRoWSER) from the CEDR Research Call 2012 on Safety, which address key issues around road worker and road user safety.

Digital version of the 2013 Beautiful Roads of Europe book. The book was produced to salute CEDR's 10th anniversary with a celebration of the roads of CEDR members.

A review of experience of rumble strips was performed in 2007 by the members of CEDR’s TG Road Safety.
This paper sums up the answers received from CEDR’s member states. It focuses on longitudinal shoulder or median rumble strips only; it does not deal with the transversal rumble strips put on the pavement to get drivers to reduce their speed or as a warning, e.g. on big slopes or before a junction.

This report provides an analysis of the ROADAPT (Roads for today, Adapted for tomorrow) and CliPDaR (Design guideline for a transnational database of downscaled Climate Projection Data for Road impact models) projects and provides concise recommendations on how to disseminate and implement the products of both projects.

The national road authorities (NRAs) of 13 European countries launched the BEXPRAC survey (Benchmarking of expenditures and practices of maintenance and operation) in an effort to benchmark the performance of their maintenance and operation (M&O) policies.

This report is the result of a survey conducted within task group S6 (TG S6) into perceived common procurement issues and the solutions applied in participating countries. Eight survey
topics were selected on the basis of:
- urgency and difficulty (qualification and selection of bidders, the most economically advantageous tender, abnormally low tenders, dispute resolution);
- political urgency (the role of small and medium-sized enterprises, social return);
- additions to the new Procurement Directive (innovation, past performance).

This report outlines the main achievements and conclusions of CEDR task group N7 (ITS for NRAs, TG N7) during CEDR’s Strategic Plan 3 (SP3) 2013–2017.

Smart mobility solutions such as integrated network management (INM) can help reduce congestion, ensure more efficient, safer, and cleaner transportation, and improve services for road users. When viewed from this perspective, integrated network management is defined as ‘an approach that includes both traffic management and traffic information measures integrated and managed within a transport network’ and is seen both as essential for the effective reduction of congestion and a no-regrets development.

This is the third biennial report produced by CEDR on the performance of the trans-European road network, TEN-T (Roads). It builds on previous reports to show that it is possible to produce comparable information on the performance of the TEN-T (Roads) network within the majority of CEDR member countries

This position paper reflects the GB view based on a workshop on road vehicle automation, facilitated by CEDR Task Group “Utilising ITS for NRAs” and complements the CEDR ITS Position Paper (issued 2014).

There are numerous interventions available to road operators that can be used to reduce energy use. This situation is both positive (options are available) and negative (it is hard to select the best option). This document identifies most of the interventions currently implemented by at least one NRA together with an easily understood assessment of the economic return, environmental and safety impact, and political acceptability of these interventions.

At the start of the CEDR RN2 work programme, it was identified that the noise mapping and action planning requirements of the EU Environmental Noise Directive (END) would form a significant component of the group's activities. Five subgroups were established to review and monitor activities associated with END noise mapping, END action planning, value for money in road traffic noise abatement, the EU noise calculation model (CNOSSOS-EU), and road noise research needs.

Report of workshop on Users’ needs at the heart of winter service. The workshop was organised between CEDR and PIARC during the February 2018 Winter Road Congress in Gdansk.

This preliminary discussion paper was released by CEDR to encourage debate with key stakeholders. It explores the likely impact of Connected and Automated Driving (CAD) on road authorities. It explains the major disruptive changes that will significantly alter the fulfilment of roles and responsibilities of National Road Authorities in the near future, highlighting the need of international cooperation.

Results of a study to review areas in which CEDR and other parties have concerns or lack clarity regarding CPR; issues such as the divide between construction products which are be covered by CPR and civil engineering works which are not as well as the interaction between CPR and the Public Procurement directive

CEDR task group N3 (Winter maintenance standards) was tasked with providing CEDR with information about winter maintenance standards, procedures and operational methods and challenges as well as a list of possible research topics from the field of winter service that could be used in CEDR research calls.

Appendices of the CEDR Report 2017-05 on conditions for efficient road transport in Europe. Presents the results of CEDR survey on heavy vehicles.

This report provides a compilation of executive summaries from CEDR’s reports published under the Third Strategic Plan (SP3) in the period 2014-2017

CEDR Contractor Report 2019-03 is an output from the CEDR Transnational Road Research Programme Call 2015: Freight and Logistics in a Multimodal Context. This is the Final Report titled "Definition and Validation of a Smart Infrastructure Access Policy Utilising Performance-Based Standards".

This report provides CEDR and NRAs with a strategic assessment and recommendations in the following areas;
EU ITS Action Plan and EC ITS Directive, EasyWay and follow-up project(s), iMobility, priority services and data quality, cooperative systems and research guidance

Ce rapport présente une évaluation stratégique et des recommandations adressées à la CEDR et aux ARN, sur les thèmes suivants; ,
Plan d'action STI de l'UE et directive sur les STI de la COM, EasyWay et projet(s) suivant(s), iMobility, Services prioritaires et qualité des données, Systèmes coopératifs, Orientations pour la recherche

Latvian version of Future European Road Network

Four projects were commissioned through the CEDR call 2013 Roads and Wildlife Research Programme: SAFEROAD, Harmony, SafeBatPaths and ECOROAD. This End-of-Programme report summarises the objectives, research approach, key findings and added value of these research projects. It also presents the executed and planned activities to disseminate the findings as well as potential synergies between the projects. Furthermore, it provides guidance on how the findings can be implemented and presents recommendations for future research.

This report provides a compilation of the executive summaries in CEDR's Final Reports published under CEDR's Second Strategic Plan. These reports were published in the period 2010-2014.
All reports are available in English and French.

Les autorités routières nationales (ARN) de 13 pays européens ont lancé l’étude intitulée BEXPRAC (Benchmarking of expenditures and practices of maintenance and operation), à savoir l’évaluation comparative des dépenses et des pratiques d’entretien et d’exploitation, visant à évaluer la performance de leurs politiques en matière d’entretien et d’exploitation (E&E).

CEDR Technical Report 2019-01 is an output from the CEDR Transnational Research Programme Call 2015: Freight and Logistics in a Multimodal Context. This is the End of Programme Report titled "Development of an optimised multimodal freight transport system".

CEDR Technical Report 2019-02 is an output from CEDR's Contractor Report 2015: Call 2015 Climate Change - Final Programme Report

CEDR Position paper on EU ITS Action Plan and Directive, European ITS Fora and CEDR

CEDR’s Traffic Network Management Working Group (TNM WG) produced a Fact Sheet on Hard Shoulder Running (HSR) based on the outputs of the 2nd TNM WG’s Workshop held in Utrecht on 16-17 May 2018.

Original proposal from ANAS Italy for the creation of a European road directors association (based in Rome).

CEDR Contractor Report 2019-04 outlines the main achievements and conclusions of Infravation, the ERA-NET Plus action on infrastructure innovation, which ran from 2014 to 2018. The aim of the Infravation programme was to support research that would generate by 2018 near-market ready innovative solutions for today’s road infrastructure problems while improving the cost-performance ratio of the infrastructure by 50 per cent.