Autori: Guido Marseglia, Carlo Maria Medaglia, Francisco Alonso Ortega, Juan Antonio Mesa
Editore: MDPI
Tipologia Prodotto: Contributo in rivista – Articolo scientifico (Article)
DOI: https://doi.org/10.3390/su11185058
Titolo della Rivista: Sustainability
Numero;Volume: 11(18) 5058
Numero prima e ultima pagina: 1-14
Codice ISSN/ISBN/ISMN: ISSN 2071-1050
Anno di Pubblicazione: 2019
Link: https://www.mdpi.com/2071-1050/11/18/5058
Abstract:
The achievement of some of the SDGs has drawn the attention of many countries towards urban transport networks. Mathematical modeling allows the formal description of a transportation system whereby it facilitates the introduction of variables and the definition of objectives to be optimized. One of the stages of the methodology followed in the design of urban transit systems starts with the determination of corridors to optimize the population covered by the system whilst taking into account the mobility patterns of potential users and the time saved when the public network is used. The application of optimization procedures that decide the sequence of nodes composing the alignment can produce zigzagging corridors, which are less appropriate for the design of a single line. The main aim of this work is to include a new criterion to avoid the zigzag effect when the alignment is about to be determined. For this purpose, a curvature concept for polygonal lines is introduced, and its performance is analyzed when criteria of maximizing coverage and minimizing curvature are combined in the same design algorithm. The results show the application of the mathematical model presented for a real case in the city of Seville in Spain.
Keywords: sustainable development goals; transport infrastructure; network design; trip coverage; optimization