<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Ensuring sufficient visibility on planned roads by sight distance testing is an integral part of every project, but problems with visibility can emerge when noise barriers are erected on existing roads. Namely, in order to provide sufficient noise protection, high noise barriers are often placed at minimum distance from the carriageway edge, and additional visibility testing in most cases is not carried out. </p><p>Research described in this paper consists of stopping sight distance tests conducted by means of specialized road design software MX Road, and noise barrier optimization conducted by means of specialized noise prediction software LimA using static noise calculation method RLS 90. The aim of this research is to establish whether the required stopping sight distance on road sections where minimum design parameters are applied can be achieved if the noise barrier is placed at minimum distance from the carriageway edge, and to establish whether the optimized dimensions of planned noise protection barrier will change if the barrier is placed on larger distance from the noise source, which is, in this case, the existing road.</p></abstract>

Ensuring sufficient visibility on planned roads by sight distance testing is an integral part of every project, but problems with visibility can emerge when noise barriers are erected on existing roads. Namely, in order to provide sufficient noise protection, high noise barriers are often placed at minimum distance from the carriageway edge, and additional visibility testing in most cases is not carried out. Research described in this paper consists of stopping sight distance tests conducted by means of specialized road design software MX Road, and noise barrier optimization conducted by means of specialized noise prediction software LimA using static noise calculation method RLS 90. The aim of this research is to establish whether the required stopping sight distance on road sections where minimum design parameters are applied can be achieved if the noise barrier is placed at minimum distance from the carriageway edge, and to establish whether the optimized dimensions of planned noise protection barrier will change if the barrier is placed on larger distance from the noise source, which is, in this case, the existing road.

The Influence of Visibility Conditions in Horizontal Road Curves on the Efficiency of Noise Protection Barriers

Assistant, MCE, University of Zagreb, Faculty of Civil Engineering, Fra Andrije Kačića-Miošića 26, 10 000 Zagreb, Croatia

Sc. novice, MCE, University of Zagreb, Faculty of Civil Engineering, Fra Andrije Kačića-Miošića 26, 10 000 Zagreb, Croatia

Prof., PhdCE, University of Zagreb, Faculty of Civil Engineering, Fra Andrije Kačića-Miošića 26, 10 000 Zagreb, Croatia

Romanian Journal of Transport Infrastructure

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Ensuring sufficient visibility on planned roads by sight distance testing is an integral part of every project, but problems with visibility can emerge when...

The Influence of Visibility Conditions in Horizontal Road Curves on the Efficiency of Noise Protection Barriers

Published Online: Feb 06, 2015

Page range: 22 - 32

DOI: https://doi.org/10.1515/rjti-2015-0016

Keywords
visibility, horizontal curves, noise protection barriers

© 2015

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The Influence of Visibility Conditions in Horizontal Road Curves on the Efficiency of Noise Protection Barriers

Published Online: Feb 06, 2015

Page range: 22 - 32

DOI: https://doi.org/10.1515/rjti-2015-0016

Keywordsvisibility, horizontal curves, noise protection barriers

© 2015

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
visibility, horizontal curves, noise protection barriers