Study of Influence of Barriers on Visibility of Two-Way Highways

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Érica Santos Matos
Ana Paula C, Larocca
Felipe Issa Kabbach

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.

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Cost Benefit Analysis (CBA) workshop in Stockholm

An open seminar and workshop in Stockholm will be held on 25-26 April 2018. The workshop deals with the use of CBA as a basis for decision-making in the public sector. The workshop is organized by, among others, Professor Jan-Eric Nilsson, VTI.
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The 6st Humanist Conference

The 6th HUMANIST Conference will take place 13-14 June 2018 in the Hague, The Netherlands. The scope of the conference covers a wide range of topics on Human Factors in Transport. Tania Willstrand and Alexander Eriksson will present their research results.

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