Association analysis of high-high cluster road intersection crashes within the CoCT in 2017, 2018, 2019 and 2021

<p dir="ltr">This dataset provides comprehensive information on road intersection crashes recognised as "high-high" clusters within the City of Cape Town. It includes detailed records of all intersection crashes and their corresponding crash attribute combinations, which were prevalent in at least 5% of the total "high-high" cluster road intersection crashes for the years 2017, 2018, 2019, and 2021. The dataset is meticulously organised according to support metric values, ranging from 0,05 to 0,0235, with entries presented in descending order.</p><p dir="ltr"><u>Data Specifics</u></p><p dir="ltr">Data Type: Geospatial-temporal categorical data</p><p dir="ltr">File Format: Excel document (.xlsx)</p><p dir="ltr">Size: 499 KB</p><p dir="ltr">Number of Files: The dataset contains a total of 7186 association rules</p><p dir="ltr">Date Created: 23rd May 2024</p><p dir="ltr"><u>Methodology</u></p><p dir="ltr">Data Collection Method: The descriptive road traffic crash data per crash victim involved in the crashes was obtained from the City of Cape Town Network Information</p><p dir="ltr">Software: ArcGIS Pro, Python</p><p dir="ltr">Processing Steps: Following the spatio-temporal analyses and the derivation of "high-high" cluster fishnet grid cells from a cluster and outlier analysis, all the road intersection crashes that occurred within the "high-high" cluster fishnet grid cells were extracted to be processed by association analysis. The association analysis of these crashes was processed using Python software and involved the use of a 0,05 support metric value. Consequently, commonly occurring crash attributes among at least 5% of the "high-high" cluster road intersection crashes were extracted for inclusion in this dataset.</p><p dir="ltr"><u>Geospatial Information</u></p><p dir="ltr"><u>Spatial Coverage</u>:</p><p dir="ltr">West Bounding Coordinate: 18°20'E</p><p dir="ltr">East Bounding Coordinate: 19°05'E</p><p dir="ltr">North Bounding Coordinate: 33°25'S</p><p dir="ltr">South Bounding Coordinate: 34°25'S</p><p dir="ltr">Coordinate System: South African Reference System (Lo19) using the Universal Transverse Mercator projection</p><p dir="ltr"><u>Temporal Information</u></p><p dir="ltr">Temporal Coverage:</p><p dir="ltr">Start Date: 01/01/2017</p><p dir="ltr">End Date: 31/12/2021 (2020 data omitted)</p>