Lifeline seismic hazards: a GIS application

Abstract

In every urbanized area, lifelines and essential facilities play a very important role and they become essential after natural disasters, such as earthquakes, floods, landslides and so on. The purpose of this research is to develop a working tool to assess lifeline seismic risk, overlaying information about the studied area's seismic hazard (referring to a seismic scenario) and lifelines that could expect damage. In damage models parameters are required, some representing pipes, others representing the soil behaviour and finally, at the very least a synthetic parameter representing the seismic hazard of the studied area (PGA, PGV or PGD). The evaluation of the network intrinsic vulnerability will be done in terms of a synthetic parameter called the Repair Rate. PGDs will be evaluated referring to attenuation laws and to earthquake induced slope displacements according to the Newmark approach. An application of the proposed model, developed by GIS techniques, will be applied to the case of a Sicily (Italy) important water network.

Seismic analysis and evaluation of safety and resilience of the lifeline networks during the earthquake sequence

“…According to the protocol of designing buildings against the earthquake standard 2800 (IRSt2800, 2014), the importance of the acceleration rate was considered up to 0.3 (more than this range damage the lifelines) (Golara, 2014). The committee of Alaska Geotechnical Evaluation Measures classi ed ve damage classes based on the displacement level and loss to lifelines: small (d < 3 cm), medium (d < 15 cm), very high (d < 30 cm), vast (d < 90 cm), and disastrous (d < 300) (Maugeri et al, 2009). Displacement data, PGD, gas pipelines and power network must rst be mapped and then integrated to determine hazardous high-risk regions in this area.…”

Establishment of Natural Hazards Mapping Criteria Using Analytic Hierarchy Process (AHP)

“…Specifically, they used the Logistic Regression approach to be an adequate tool for assessing landslide susceptibility objectively and quantitatively, providing parameters permitting evaluation of output quality. Maugeri et al (2009) also used GIS in their study of lifeline seismic hazard developed in a GIS environment, by "Spatial Analysis" and "Field Calculation" techniques, and Alexoudi et al (2002) used the same technology (GIS) in predicting seismic hazard by developing deterministic and probabilistic scenarios in terms of spectral ordinates.…”

A WebGIS platform for mobile robot navigation developed with free and open source software

“…The use of autonomous robots is a valuable tool for the exploration of hostile environments and sites affected by natural disasters (Figure 1), i.e. unstable areas or structures, underground cavities, polluted sites, buildings at risk of collapse, volcanic phenomena [1,2,3]. The navigation of a robot is usually monitored and controlled by inertial platforms and in outdoor applications by means of satellite positioning, as the GPS technology [4].…”