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Terminal reliability of road networks with multiple destination options

Neumann, Thorsten und Behrisch, Michael (2018) Terminal reliability of road networks with multiple destination options. International Journal of Safety and Security Engineering, 8 (3), Seiten 426-437. WIT Press. doi: 10.2495/SAFE-V8-N3-426-437. ISSN 2041-9031.

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Offizielle URL: https://www.witpress.com/elibrary/sse-volumes/8/3/2190

Kurzfassung

In crisis situations such as natural disasters, it is essential that people can be reached by fire and rescue services as well as police forces. Moreover, access to food and water supply should be ensured for everyone, for instance. In all cases, people depend on the (potentially damaged) road infrastructure - modelled as a graph network - that for all nodes in the network should provide connections to at least one supply node of each type (i.e., fire department, hospital etc.) even if some links in the network are currently unavailable. Assuming that there are multiple supply nodes per type among the whole network, the present contribution discusses the risk that a given node of the network becomes isolated from all of these supply nodes depending on the topological structure of the network. For this purpose, the well-known concept of terminal reliability is adapted to the situation with multiple possible destinations which is realized by appropriately modifying the original graph. An algorithm is presented that allows finding all relevant cut sets in the modified graph which can be used for computing the probability R_sys that a given node remains connected to at least one of the supply nodes considered depending on the link failure probabilities p_i. A simple clustering Approach together with Boolean algebra finally yields explicit numbers for R_sys depending on p_i. The whole concept is demonstrated based on an illustrative example showing the different endangerment among the nodes of the Network including a discussion about the specific criticality of each network link with regard to ensuring the connectivity between supply nodes and other nodes. Thus, by identifying critical links and quantifying the risk of Isolation for all nodes in the network, the present contribution provides useful tools for prevention in crisis management.

elib-URL des Eintrags:https://elib.dlr.de/121277/
Dokumentart:Zeitschriftenbeitrag
Titel:Terminal reliability of road networks with multiple destination options
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Neumann, ThorstenThorsten.Neumann (at) dlr.dehttps://orcid.org/0000-0002-9236-0585NICHT SPEZIFIZIERT
Behrisch, MichaelMichael.Behrisch (at) dlr.dehttps://orcid.org/0000-0002-0032-7930166881449
Datum:Juli 2018
Erschienen in:International Journal of Safety and Security Engineering
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
Band:8
DOI:10.2495/SAFE-V8-N3-426-437
Seitenbereich:Seiten 426-437
Verlag:WIT Press
ISSN:2041-9031
Status:veröffentlicht
Stichwörter:resilience, vulnerability, reliability analysis, road networks, minimal cut sets, algorithm
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Verkehrsmanagement (alt)
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V VM - Verkehrsmanagement
DLR - Teilgebiet (Projekt, Vorhaben):V - Vabene++ (alt)
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Verkehrssystemtechnik > Datenerfassung und Informationsgewinnung
Institut für Verkehrssystemtechnik > Bewertung des Verkehrs
Hinterlegt von: Neumann, Dr.-Ing. Thorsten
Hinterlegt am:09 Aug 2018 10:06
Letzte Änderung:05 Sep 2024 15:57

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