In the recent years several projects have been conducted to produce guidelines to design forgiving roadsides worldwide and several national standards have been produced but different approaches are often proposed. The final results of Trans-National Research Projects, aimed at identifying harmonised solutions, are often extremely scientific but not practical and result in a lack of applicability. Based on the results of WP1 and WP2 and together with an additional literature review, this WP of IRDES produced a practical guideline that, thanks to the contribution of ANAS and to the interaction with Road Administrations and Operators (through the Webinars that have been organized and through the synergy with the TG on Road safety of CEDR), can be applied in practice in road safety design projects. The different proposed interventions are linked to the potential effectiveness estimated and defined in WP2 and in other relevant literature in order to allow the user to perform cost-effectiveness evaluation before planning a specific treatment. One of the issues has been the harmonisation of different existing standards or the identification of underlying reasons for different existing solutions for the same treatments in order to allow the user to select the optimal treatment and to properly assess its effectiveness. The roadside features for which the IRDES design guideline has been developed are: - Barrier terminals - Shoulder rumble strips - Forgiving support structures for road equipment - Shoulder width. Each feature is analysed in a separate section of the guideline providing: - Introduction - Design criteria; - Assessment of effectiveness; - Case studies/Examples; - Key references. Additional roadside features have been analysed in D1 (Annex 1) and in D2 (Annex 2). In the latter the potential safety effects of applying different treatments (hard shoulders, soft shoulders, crash barriers) in sharp bends have been analysed and a procedure to perform effectiveness evaluations on specific applications has been proposed.

Forgiving Roadside Design Guide / F. La Torre. - ELETTRONICO. - (2011), pp. 1-202.

Forgiving Roadside Design Guide

LA TORRE, FRANCESCA
2011

Abstract

In the recent years several projects have been conducted to produce guidelines to design forgiving roadsides worldwide and several national standards have been produced but different approaches are often proposed. The final results of Trans-National Research Projects, aimed at identifying harmonised solutions, are often extremely scientific but not practical and result in a lack of applicability. Based on the results of WP1 and WP2 and together with an additional literature review, this WP of IRDES produced a practical guideline that, thanks to the contribution of ANAS and to the interaction with Road Administrations and Operators (through the Webinars that have been organized and through the synergy with the TG on Road safety of CEDR), can be applied in practice in road safety design projects. The different proposed interventions are linked to the potential effectiveness estimated and defined in WP2 and in other relevant literature in order to allow the user to perform cost-effectiveness evaluation before planning a specific treatment. One of the issues has been the harmonisation of different existing standards or the identification of underlying reasons for different existing solutions for the same treatments in order to allow the user to select the optimal treatment and to properly assess its effectiveness. The roadside features for which the IRDES design guideline has been developed are: - Barrier terminals - Shoulder rumble strips - Forgiving support structures for road equipment - Shoulder width. Each feature is analysed in a separate section of the guideline providing: - Introduction - Design criteria; - Assessment of effectiveness; - Case studies/Examples; - Key references. Additional roadside features have been analysed in D1 (Annex 1) and in D2 (Annex 2). In the latter the potential safety effects of applying different treatments (hard shoulders, soft shoulders, crash barriers) in sharp bends have been analysed and a procedure to perform effectiveness evaluations on specific applications has been proposed.
2011
979-10-93321-02-8
1
202
F. La Torre
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/627986
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