A Conceptual Framework for Underground Utility Mapping Accuracy Assessment Using Ground Penetrating Radar (6833) |
| Mazlan Hashim, Siew Wei Jaw and Samsudin Ahmad (Malaysia) |
Prof. Mazlan Hashim
Director
Inst of Geopatial Science & Tehnology (INSTeG)
Faculty of Geoinformation
Universiti Teknologi Malaysia
Blok T06, Faculty of Geoinformation
Universiti Teknologi Malaysia
Johor Bahru
81310
Malaysia
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| Corresponding author Prof. Mazlan Hashim (email: mazlanhashim[at]utm.my, tel.: 6075537662) |
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| [ abstract ] [ paper ] [ handouts ] |
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Published on the web 2014-03-21
Received 2013-11-15 / Accepted 2014-02-06 |
| This paper is one of selection of papers published for the FIG Congress 2014 in Kuala Lumpur, Malaysia and has undergone the FIG Peer Review Process. |
FIG Congress 2014
ISBN 978-87-92853-21-9 ISSN 2308-3441
http://www.fig.net/resources/proceedings/fig_proceedings/fig2014/index.htm
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Abstract |
| Underground utility mapping is an important engineering practice to acquire the as-built information of the buried utility features. Securing the as-built information of the underground utility features will always be a very important step for city’s infrastructure planning. In this regard, an efficient framework, ranging from marking, scanning, detecting, and extracting the geometric information of the buried utilities before displaying the results on preferable deliverable format is very crucial to ensure accurate data acquisition during underground utility mapping. Therefore, this paper demonstrates a conceptual framework underground utility mapping accuracy assessment using one of the famous non-destructive testing measuring tools, namely Ground Penetrating Radar (GPR). This conceptual framework defines the methodologies, best practices and reference procedures for assessing the underground utility mapping accuracy. The framework was initially adopted based on field-based model which customized for mimic the typical infrastructure that currently buried in the underground. Thereafter, the proposed framework was applied under real world testing to validate the results obtained from laboratory testing done on the field-based model. Results obtained proved that, the proposed conceptual framework not only presented the locational accuracy of underground utility mapping, it also introduced the best practice for data acquisition using GPR in order to ensure precise underground utility mapping. With the availability of this conceptual framework, it can correct the improper practices that had been practices by the street-workers during underground utility mapping. Through refinement of this conceptual framework, the establishment of standard operating procedures for surveying work of underground utility mapping in future towards development of three-dimensional underground cadastral database is within sight.
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| Keywords: Geoinformation/GI; conceptual framework, accuracy assessment, underground utility mapping, ground penetrating radar |
