Study of Influence of Barriers on Visibility of Two-Way Highways
2013 (English)In: Proceedings of the 16th International Conference Road Safety on Four Continents: Beijing, China. 15-17 May 2013, Linköping: Statens väg- och transportforskningsinstitut, 2013Conference paper (Other academic)
Stopping Sight Distance (SSD) must be guaranteed the entire length of a highway. However, elements of the cross-section in the design can interfere with sight distances. This can be the case when barriers, rather than medians, are used on two-way highways, especially along left curves. Thus, this study analyzed the position of barriers in a hypothetical scenario using graphic three-dimensional simulations. The lateral offset of the barrier relative to the roadway was defined according to each design speed and radius of the horizontal curve was analyzed. The results of the simulation were compared with the model, which was found in Brazilian guides, for offsetting fixed objects from horizontal curves. The differences found in this study demonstrated the viability of the method used, and the project was considered useful as a whole because it was developed in a three-dimensional fashion.
Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2013.
Crash barrier, Visibility distance, Stopping distance, Simulation, Three dimensional, Curve
Research subject 30 Road: Highway design, 31 Road: Geometric design; 30 Road: Highway design, 34 Road: Safety devices; X RSXC
IdentifiersURN: urn:nbn:se:vti:diva-7407OAI: oai:DiVA.org:vti-7407DiVA: diva2:761308
16th International Conference Road Safety on Four Continents. Beijing, China (RS4C 2013). 15-17 May 2013