centralised system for road accident, safety and hazard studies (crash)

One of the most important elements ofdeveloping Noise Exposure Level Mappingapplication is finding and utilizing theappropriate data. The form of the data iscritical to the overall database design, and thesuccess of the analyses performed with theapplication system.For this study, fieldwork data collection hasbeen done for sound level data and shoppingcomplexes location data. Besides that,ancillary GIS datasets has been obtained fromJUPEM in shapefile format (administrationboundary, town). Later, sound level meter datahas been processed using Microsoft Excel andthe result then exported into GIS environment.After that, the integration data has beendone. The integration has been done betweenattributes data and spatial data which will beused for analysis purposes.Spatial database development is the process ofbuilding the digital database from the sourcedata - maps and tabular files (fieldwork data).A database construction process is dividedinto two major activities:• Creation of digital files from maps,tables and other source documents;• Organization of the digital files into aGIS database using Arcview GIS.After completed of spatial databasedevelopment, Noise Exposure Mappingapplication has been develop using WebpageMaker V2 (an open source software). Usingthis open source software, the output for noiseexposure level can be disseminate through theinternet.5. RESULT AND DISCUSSION5.1 Analysis of DataAnalysis of data were done for 10 selectedshopping centres and 10 observations werehave been done for each selected shoppingcentres. The comparison data will be shown ingraph format as below;1) Graph of Noise Exposure Levelof JUSCO Taman Equine, SeriKembangan, Selangor.2) Graph of Noise Exposure Level ofGIANT Bandar Puteri, Puchong,Selangor.3) Graph of Noise Exposure Level ofTESCO Puchong, Puchong, Selangor.4) Graph of Noise Exposure Level ofBangsar Village Shopping Complex,Bangsar, Kuala Lumpur.5) Graph of Noise Exposure Level ofMaju Junction Mall, Jalan TAR, KualaLumpur.6) Graph of Noise Exposure Level ofPertama Complex, Jalan TAR, KualaLumpur.7) Graph of Noise Exposure Level ofSOGO Shopping Centre, Jalan TAR,Kuala Lumpur.140120100100100806040806040Sound Level 20 (dbA)0806040S ound L evel vs L oc ation G raph20Sound Level (dBA)01 2 3 4 5 6 7 8 9 10Min dB(A) 68 73 72 73 68 73 74 78 76 69Max dB(A) 75 84 75 76 73 80 87 90 86 73L oc a tionS ound L evel vs L oc ation G raph20Sound Level (dBA)01 2 3 4 5 6 7 8 9 10Min dB(A) 68 71 70 71 70 76 72 78 76 69Max dB(A) 71 77 72 78 77 83 86 90 86 73L oc a tionS ound L evel vs L oc ation G raph1 2 3 4 5 6 7 8 9 10Min dB(A) 72 71 75 70 75 82 76 77 68 75Max dB(A) 75 75 78 76 81 115 101 81 80 80L o c a tio n8) Graph of Noise Exposure Level ofTESCO Mutiara Damansara, PetalingJaya, Selangor.9) Graph of Noise Exposure Level ofAlamanda Putrajaya, Putrajaya.10) Graph of Noise Exposure Level ofCarrefour Seri Petaling, Bandar BaruSeri Petaling, Kuala Lumpur.Min dB(A)Max dB(A)Figure 5: Graph of Noise Exposure Level of JUSCO Taman EquineMin dB(A)Max dB(A)Figure 6: Graph of Noise Exposure Level of GIANT Bandar PuteriMin dB(A)Max dB(A)Figure 7: Graph of Noise Exposure Level of TESCO Puchong10 Buletin Geospatial Sektor Awam