GIS-based site suitability and vulnerability assessment of telecommunication base transceiver station facilities in Ibad
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ORIGINAL PAPER
GIS-based site suitability and vulnerability assessment of telecommunication base transceiver station facilities in Ibadan metropolis, Nigeria Suleiman Abdul-Azeez Adegboyega 1 & Ileri Ayo Oyetunji 1 & Ayo Emmanuel Olajuyigbe 2 & Francis A. Adesina 3
Received: 24 February 2017 / Accepted: 8 August 2017 / Published online: 18 August 2017 # Società Italiana di Fotogrammetria e Topografia (SIFET) 2017
Abstract The study assessed GIS capability in siting of base transceiver stations (BTS) to ensuring optimum spatial coverage of signal while minimizing their health impacts. It therefore evaluated the spatial pattern of BTS, determined areas vulnerable to health hazards related to them and identified most suitable locations for siting the BTS in Ibadan metropolis. Digital elevation model, IKONOS, geographic locations of the BTS and administrative map of Ibadan were used. Images and map were georeferenced using ArcGIS 10.2 version. Features such as drainage, road network, buildings among others were extracted from the IKONOS image. Nearest neighbourhood analysis was performed to investigate the nature of the BTS distribution. Buffering analysis was carried out to identify the numbers of buildings at risk of radiation emission from BTS based on National Environmental Standards and Regulation Enforcement Agency (NESREA) 10 m distance regulation. View shed analysis was performed to determine signal strength across the study area. Multi-criteria analysis (MCA) and sensitivity analysis were carried out to generate BTS suitability index maps. The finding showed that BTS distribution pattern was dispersed with z-score of 4.39 and there was less than 1% likelihood that this dispersed pattern could be the result of random chance (P value = 0.01). The study revealed that 934 buildings with 13,387 population were found within 10 m from
* Suleiman Abdul-Azeez Adegboyega [email protected]
1
Department of Remote Sensing & GIS, Federal University of Technology, Akure, Nigeria
2
Department of Urban & Regional Planning, Federal University of Technology, Akure, Nigeria
3
Department of Geography, Obafemi Awolowo University, Ile-Ife, Nigeria
the BTS and thus vulnerable to possible health hazards of harmful radiation. The study proposes creation of 11 new BTS sites that would increase strong signal strength coverage across the study area. It canvassed for further researches on the effects of long-term exposure to radiation among people living around BTS in Nigeria. Keywords GIS . Base transceiver station . Health hazards . Harmful radiation . Suitability index map
Introduction Telecommunication technology facilitates information exchange between one person and the other through electronic means over designated distances (Tarmo 2003). Telecommunication comprises of different technologies and sections of communications, examples are mechanical and electrical communication. It is worthy of note to say that for a telecommunication circuit to be complete, two stations with each having its own transmitter and a receive
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