A Road Safety Approach for a New Revision of the Portuguese Design Guidelines

Download
António Lemonde de Macedo
João Lourenço Cardoso
Carlos de Almeida Roque

The Portuguese road design guidelines have undergone periodical revisions, aiming at updating technical aspects of the geometric design of road elements and enlarging the field of their application to various types of roads and intersections. The National Laboratory for Civil Engineering (LNEC), through its Transportation Department, has provided scientific and technical support and advice to the road administrations along this process. At the present stage, a proposal made by LNEC points out to the need for a thorough reformulation of the whole set of documents which are currently being used in Portugal as road design guidelines, in order to introduce a greater integration among them, and new technical advances based on scientific ground. A strategy to carry out that reformulation is being followed, which involves the setting up of an encompassing framework centred in a so called “base document” which contains common concepts and technical indications to which all the guidelines for specific types of roads must comply with. In this paper a presentation is made on the main characteristics of the said “base document” prepared by LNEC, as well as the rationale underlying the introduction of a road safety approach into not only the conceptual frame but also the definition of road geometric design parameters and acceptable limit values, more closely related to the human component, which are derived, for example, from the assessment of driver’s behaviour characterization, using the results of a large number of measurements in Portuguese and other European road networks.

MEET US


5-6
Dec

Vision Zero for Sustainable Road Safety in the Baltic Sea Region

The conference Vision Zero for Sustainable Road Safety in the Baltic Sea Region is held i Vilnius, Lithuania. VTI is part of the organisation committé and also one of the speakers.

LATEST NEWS


2018-09-20

EU-project VIRTUAL: improving road safety with virtual crash tests

Crash tests are used to improve safety on roads. Therefore the EU now funds a research project to develop virtual methods of crash testing. VTI coordinates the project, called VIRTUAL. The project now invites experts interested in Human Body Modeling to join...


2018-08-28

EU project protects cyclists and pedestrians

According to the World Health Organisation, more than one quarter of road traffic fatalities in 2010 were pedestrians and cyclists. Every year, about 335,000 unprotected road users die because of traffic accidents, which shows the scale of the problem. The EU...


2018-08-21

Swedish organisations in EU project on traffic safety and crash testing

Crash safety testing is one of the tools used to improve safety on roads. The EU is therefore funding a research project that started recently to develop virtual methods of crash testing. The long-term goal is to supplement the physical evaluation of crash...


2018-06-13

International Conference on Electric Road Systems starts today

Electric Road Systems (ERS) is a relatively new concept with many initiatives on the way. To learn from each other and stimulate new collaborations the Swedish Research and Innovation Platform for Electric Roads arranged the first international conference...


2018-05-18

Same survey of road users’ attitudes in 50 countries

At the Road Safety on Five Continents Conference, RS5C, one entire session presented a large survey of road users' attitudes in 38 countries. Results show large differences between countries in many areas, both regarding behavior and attitudes. A new survey...


2018-05-17

Good results with alcohol interlock program according to Swedish study

An alcohol interlock program makes it possible for drink driving offenders to continue their everyday lives. In a Swedish study most of the participants were satisfied with the program and experienced improved health. They also reported drinking alcohol more...