Evaluating the robustness effects of infrastructure projects based on their topological and geometrical roadway designs
| Autor: | B. Wesseling, Maaike Snelder, Marcel Hertogh, B. van Arem |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Urban Mobility & Environment Incidents Geography Planning and Development 0211 other engineering and technologies Urbanisation Transportation 02 engineering and technology Topology Parallel road structure Traffic volume Robustness (computer science) Hard shoulder 021105 building & construction 0502 economics and business Total delay Network level Network performance Robustness Weaving Simulation based 050210 logistics & transportation Number of lanes business.industry 05 social sciences Mobility & Logistics Geometric design SUMS - Sustainable Urban Mobility and Safety ELSS - Earth Life and Social Sciences Weaving sections business |
| Zdroj: | Transport Policy, 57 Transport Policy, 57, 20-30 |
| ISSN: | 0967-070X |
| DOI: | 10.1016/j.tranpol.2017.03.018 |
| Popis: | 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. © 2017 Elsevier Ltd |
| Databáze: | OpenAIRE |
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