Print Email Facebook Twitter Evaluating the robustness effects of infrastructure projects based on their topological and geometrical roadway designs Title Evaluating the robustness effects of infrastructure projects based on their topological and geometrical roadway designs Author Snelder, M. (TU Delft Transport and Planning; TNO) Wesseling, B. (TU Delft Transport and Planning) van Arem, B. (TU Delft Transport and Planning) Hertogh, M.J.C.M. (TU Delft Integral Design & Management) Department Transport and Planning Date 2017-07-01 Abstract When infrastructures projects are evaluated, it is not only important to evaluate them with models that represent the average daily situation, but also to evaluate them in case of irregular situations like incidents. This becomes especially relevant when various project alternatives are expected to show significantly different scores in case of incidents. Project alternatives and their road sections have different topological and geometrical characteristics. The focus of this paper is on the following characteristics: hard shoulders, the number of lanes, parallel road structures and weaving sections. The main question that this paper addresses is how these network characteristics affect both the risk of different types of incidents occurring and the effects of those incidents on the network performance (robustness). In order to answer this question, analytical examples are presented for small theoretical networks that give insight into how the selected characteristics affect the total delay caused by incidents and its dependence on the traffic volume, capacity, severity and duration of incidents. A marginal simulation based method is presented that can be used to compute the robustness effects of project alternatives, given their geometrical and topological characteristics, on a network level. A case study for an infrastructure project in the Netherlands is presented that illustrates how the robustness effects of infrastructure projects can be computed given their topological and geometrical characteristics. Subject Hard shoulderIncidentsNumber of lanesParallel road structureRobustnessWeaving sections To reference this document use: http://resolver.tudelft.nl/uuid:ea9003a4-72b0-4b91-804a-a524387a9a23 DOI https://doi.org/10.1016/j.tranpol.2017.03.018 Embargo date 2019-04-05 ISSN 0967-070X Source Transport Policy, 57, 20-30 Part of collection Institutional Repository Document type journal article Rights © 2017 M. Snelder, B. Wesseling, B. van Arem, M.J.C.M. Hertogh Files PDF Manuscript_Robustness_eff ... sed_V2.pdf 1.21 MB Close viewer /islandora/object/uuid:ea9003a4-72b0-4b91-804a-a524387a9a23/datastream/OBJ/view