Anciaes, P; Pinheiro, J; Somsen, S; Henriques, I; (2022) Street space allocation – new tools and methods, with a Lisbon application [Full paper]. In: Proceedings of City Street 5 - The time of streets: incisions, overlaps and rhythms. City Street 5: Lisbon, Portugal.

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Abstract

The allocation of space to different uses in busy city streets is a complex and conten-tious process. Decisions to reallocate streetspace are usually based on public consulta-tion and modelling of a few street redesign options, but results are not compared sys-tematically. In addition, the set of options considered is usually incomplete. This paper proposes a new process for streetspace reallocation, including option generation (with online and physical tools), estimation of performance indicators (with microsimula-tion), and comparison of options (with a new appraisal tool). The process was applied to the redesign of a busy street in Lisbon. Several options were generated, all involving reducing the space allocated to general motorised traffic. Microsimulation showed that allocating more space to some street uses also bring benefits to other uses. The option to allocate more space to both bus users and pedestrians does not deteriorate move-ment by other modes. However, appraisal showed that some redesign options go against technical/design standards or political priorities.

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