When there is an abnormality of the motorway traffic with drastic reduction of capacity, the almost immediate establishment of a queue is frequent. The note shows a generalized methodology to estimate the time needed to travel along a route in which a malfunction has occurred (even partial) forming a queue and with several possible time evolutions to free the section. The method is applicable to real situations in a motorway infrastructure with the primary purpose of providing correct information to users by means of variable message panels placed in a section upstream of the malfunction. The methodology was developed under a research agreement stipulated between the company Autostrade per l’Italia SpA and the Department of Civil and Environmental Engineering at the University of Florence.
When there is an abnormality of the motorway traffic with drastic reduction of capacity, the almost immediate establishment of a queue is frequent. The note shows a generalized methodology to estimate the time needed to travel along a route in which a malfunction has occurred (even partial) forming a queue and with several possible time evolutions to free the section. The method is applicable to real situations in a motorway infrastructure with the primary purpose of providing correct information to users by means of variable message panels placed in a section upstream of the malfunction. The methodology was developed under a research agreement stipulated between the company Autostrade per l’Italia SpA and the Department of Civil and Environmental Engineering at the University of Florence.
The "Hourglass" model / Colombaroni, Chiara; Domenichini, Lorenzo; Salerno, Giorgio. - In: INGEGNERIA FERROVIARIA. - ISSN 0020-0956. - STAMPA. - 68:7-8(2013), pp. 651-660.
The "Hourglass" model
COLOMBARONI, CHIARA;DOMENICHINI, LORENZO;
2013
Abstract
When there is an abnormality of the motorway traffic with drastic reduction of capacity, the almost immediate establishment of a queue is frequent. The note shows a generalized methodology to estimate the time needed to travel along a route in which a malfunction has occurred (even partial) forming a queue and with several possible time evolutions to free the section. The method is applicable to real situations in a motorway infrastructure with the primary purpose of providing correct information to users by means of variable message panels placed in a section upstream of the malfunction. The methodology was developed under a research agreement stipulated between the company Autostrade per l’Italia SpA and the Department of Civil and Environmental Engineering at the University of Florence.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
