Analysis of Lifelines Transportation Vulnerability

Cirianni, Francis; Fonte, Fabio; Leonardi, Giovanni; Scopelliti, Francesco

doi:10.1016/j.sbspro.2012.09.857

Cited by 17 publications

(13 citation statements)

References 7 publications

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“…A town has a dynamic texture that depends on the availability of public services [14]. Indeed, public services fill a strategic role: they should work both in ordinary moments and after collapse because all emergency activities need lifelines that join various spatial areas [15] that are affected by an emergency [16]. Public services ensure essential and indispensable services for people's survival (e.g., transport, water and sewage, telecommunication, fuels, and electricity) [17].…”

Section: Introduction 1natural Risks and Urban Developmentmentioning

confidence: 99%

Consistency of Urban Roads to Manage Emergencies: Methodology to Identify the Minimum Network with Total Connectivity at Maximum Availability

Galiano

Moretti

2021

Sustainability

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Natural disasters happen without warning; it is normally impossible to predict when they will occur, but it is necessary that rescue services reach the disaster site and manage the emergency. This paper proposes an innovative methodology to summarize seismic effects on road, building, and land factors in urban areas. The existing road network is modelled through the graph theory: the arcs represent the main infrastructures, while the nodes represent both the primary strategic buildings and the intersections between the main roads. Therefore, the quantitative approach takes into account the existing road network, the focal areas that play a strategic role during emergency, and their relationship with buildings and territory. The results enable the identification of the minimum urban structure (MUS) with total connectivity at maximum availability. These structures were composed of the paths that will be the priority choice for emergency vehicles after an earthquake. The proposed approach has been implemented to identify the MUS in a medium-size Italian urban center (Pomezia) in the event of a critical earthquake. The methodology is easy to apply and could represent an ideal tool in the preliminary phase of analysis of an urban road network to define new city plans through targeted territorial design, to facilitate decision makers in investment choices, to increase the road network consistency, and to implement emergency plans after natural disasters.

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Section: Introduction 1natural Risks and Urban Developmentmentioning

confidence: 99%

Consistency of Urban Roads to Manage Emergencies: Methodology to Identify the Minimum Network with Total Connectivity at Maximum Availability

Galiano

Moretti

2021

Sustainability

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“…Therefore, transport network is a lifeline [2], and its vulnerability exposes people to additional risks. Air transport needs for high priority because it is a strategic infrastructure.…”

Section: Introductionmentioning

confidence: 99%

Laboratory and On-Site Tests for Rapid Runway Repair

Leonelli

Mascio

Germinario³

et al. 2017

Applied Sciences

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Featured Application: The results of this study offer a broad vision for the rapid runway repair, giving a useful quantitative and objective tool for airport management body; moreover, they could be applied also for road pavements. Abstract:The attention to rapid pavement repair has grown fast in recent decades: this topic is strategic for the airport management process for civil purposes and peacekeeping missions. This work presents the results of laboratory and on-site tests for rapid runway repair, in order to analyse and compare technical and mechanical performances of 12 different materials currently used in airport. The study focuses on site repairs, a technique adopted most frequently than repairs with modular elements. After describing mechanical and physical properties of the examined materials (2 bituminous emulsions, 5 cement mortars, 4 cold bituminous mixtures and 1 expanding resin), the study presents the results of carried out mechanical tests. The results demonstrate that the best performing material is a one-component fast setting and hardening cement mortar with graded aggregates. This material allows the runway reopening 6 h after the work. A cold bituminous mixture (bicomponent premixed cold asphalt with water as catalyst) and the ordinary cement concrete allow the reopening to traffic after 18 h, but both ensure a lower service life (1000 coverages) than the cement mortar (10,000 coverages). The obtained results include important information both laboratory level and field, and they could be used by airport management bodies and road agencies when scheduling and evaluating pavement repairs.

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“…La intensidad de un deslizamiento de tierra es la expresión de su destructividad que depende del tipo de evento que ocurra, es decir, la intensidad se puede describir en función de la velocidad del movimiento, energía cinética, volumen, desplazamientos totales o diferenciales, entre otras [1], [6].…”

Section: Análisis Del Riesgounclassified

“…La sociedad moderna se apoya íntegramente en una red articulada de infraestructuras, que ha asumido un papel vital para el ser humano. En este sentido, las líneas de vida son redes que se desarrollan en todo el territorio para relacionar y conectar las ciudades y puntos de interés [1].…”

Section: Introductionunclassified

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Vulnerabilidad física de las vías de dos carriles debido a la pérdida de la capacidad de servicio en pavimentos flexibles por causa de los desplazamientos en el talud inferior

Argota¹

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Las vías son el principal medio de transporte, sin embrago, la infraestructura vial tiene una alta vulnerabilidad ante los eventos naturales. Uno de los eventos naturales más frecuentes, son los deslizamientos de tierra, los cuales ocasionan fallas en las estructuras de pavimento, generando de esta manera una disminución en la capacidad de servicio de las vías. En este sentido, la presente investigación tiene como objetivo principal la cuantificación de la vulnerabilidad física de las vías de dos carriles debido a la pérdida de la capacidad de servicio en pavimentos flexibles por causa de los desplazamientos en el talud inferior. Por consiguiente, se realizaron 48 modelos, en donde se varió la estructura de pavimento flexible, el tipo de suelo e inclinación del talud inferior. Posteriormente, se realizaron las simulaciones en elementos finitos, con el fin determinar los desplazamientos y superficie de falla que se genera sobre la carpeta de rodadura de cada estructura de pavimento flexible. Luego se establece el estado del pavimento por medio de la cuantificación del índice de condición del pavimento (PCI), e índice de rugosidad internacional (IRI) y finalmente se establece la vulnerabilidad física de las vías por medio de la disminución de la velocidad. De acuerdo con los resultados obtenidos, se indica que la variación en la capacidad de servicio de las vías, debido a los desplazamientos en la estructura de pavimento flexible, inducidos por los movimientos del talud inferior, se encuentra en función del tipo de material que conforma el talud.

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Analysis of Lifelines Transportation Vulnerability

Cited by 17 publications

References 7 publications

Consistency of Urban Roads to Manage Emergencies: Methodology to Identify the Minimum Network with Total Connectivity at Maximum Availability

Consistency of Urban Roads to Manage Emergencies: Methodology to Identify the Minimum Network with Total Connectivity at Maximum Availability

Laboratory and On-Site Tests for Rapid Runway Repair

Vulnerabilidad física de las vías de dos carriles debido a la pérdida de la capacidad de servicio en pavimentos flexibles por causa de los desplazamientos en el talud inferior

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