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ISPRS Int. J. Geo-Inf. 2019, 8(3), 122; https://doi.org/10.3390/ijgi8030122

QRA-Grid: Quantitative Risk Analysis and Grid-based Pre-warning Model for Urban Natural Gas Pipeline

1
Institute of Remote Sensing and GIS, Peking University, Beijing 100871, China
2
College of Engineering, Peking University, Beijing 100871, China
*
Author to whom correspondence should be addressed.
Received: 24 January 2019 / Revised: 21 February 2019 / Accepted: 26 February 2019 / Published: 1 March 2019
(This article belongs to the Special Issue GIS for Safety & Security Management)
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Abstract

With the increasing use and complexity of urban natural gas pipelines, the occurrence of accidents owing to leakage, fire, explosion, etc., has increased. Based on Quantitative Risk Analysis (QRA) models and Geographic Information System (GIS) technology, we put forward a quantitative risk simulation model for urban natural gas pipeline, combining with a multi-level grid-based pre-warning model. We develop a simulation and pre-warning model named QRA-Grid, conducting fire and explosion risk assessment, presenting the risk by using a grid map. Experiments show that by using the proposed method, we can develop a fire and explosion accident pre-warning model for gas pipelines, and effectively predict areas in which accidents will happen. As a result, we can make a focused and forceful policy in areas which have some potential defects in advance, and even carry out urban planning once more, rebuilding it to prevent the risk. View Full-Text
Keywords: natural gas pipeline; quantitative risk analysis (QRA); pre-warning; multi-level grid; geographic information system (GIS) natural gas pipeline; quantitative risk analysis (QRA); pre-warning; multi-level grid; geographic information system (GIS)
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Li, S.; Cheng, C.; Pu, G.; Chen, B. QRA-Grid: Quantitative Risk Analysis and Grid-based Pre-warning Model for Urban Natural Gas Pipeline. ISPRS Int. J. Geo-Inf. 2019, 8, 122.

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