Friday, 22 September 2017

Hotspot Analysis

Hotspot Analysis 
EMS 911 Map
Ø  Double click and Open Investigating911Calls.mpk
Ø  Right-click on Calls in the Table of Contents, and choose Properties
Ø  Click on Source tab and confirm that the data is in a Geographic Coordinate System called WGS_1984 
Ø  Click on cross and close the Layer Properties dialog
Ø  Click on Search Window, find the ‘Project’ tool
Ø  Click on the Project (Data Management) tool to open it
Ø  Fill the Data according to that
Ø  Input Dataset - Hot Spot Analysis\Calls
Ø  Input Coordinate System - GCS_WGS_1984
Ø  Output Dataset - Calls_Projected
Ø  Output Coordinate System - NAD_1983_UTM_Zone_10N (Projected Coordinate System\UTM\NAD1983\NAD_1983_UTM_Zone_10N)
Ø  Geographic Transformation - WGS_1984_(ITRF00)_To_NAD_1983
Ø  Click OK
Ø  Double-click on Calls_Projected in the Table of Contents, go to the Symbology Tab, and click on Import
Ø  Choose Calls, and click OK
Ø  Click on Search for the ‘Copy Features’ tool and choose Copy Features (Data Management) to open the tool
Ø  Fill the box according to this
Ø  Input Feature Class - Calls_Projected
Ø  Output Feature Class - Copy_Calls_Projected
Ø  Then click Ok
Ø  Double-click on Copy_Calls_Projected in the Table of Contents, go to the Symbology Tab, and click on Import
Ø  Choose Calls, and click OK
Ø  Click on Search for the ‘Integrate’ tool and choose Integrate (Data Management) to open the tool
Ø  Fill the box as following
Ø  Input Features - Copy_Calls_Projecte
Ø  XY Tolerance - 30 Feet
Ø  Then click Ok
Ø   Click on Search for the ‘Collect Events’ tool and choose Collect Events (Spatial Statistics) to open the tool
Ø  Fill the dialog in as follows
Ø  Input Incident Features - Copy_Calls_Projected
Ø  Output Weighted Point Feature Class – AggregatedCalls
Ø  Click OK
Ø  Click Search for the ‘Hot Spot Analysis’ tool and choose Hot Spot Analysis (Spatial Statistics) to open the tool
Ø  Fill the box as follows
Ø  Input – AggregatedCalls
Ø  input field – Icount
Ø  Navigate the folder where we want to save the file
Ø  Conceptualization of Spatial Relationships - Fixed_Distance_Band
Ø  Distance Method - Euclidean Distance
Ø  Click on minimize button and minimize the tab
Ø  Click on ArcToolbox window, navigate to the Spatial Statistics toolbox and expand the Analyzing Patterns toolset
Ø  Double-click on the Incremental Spatial Autocorrelation tool
Ø  Fill the dialog in as follows
Ø  Input Feature Class – AggregatedCalls
Ø  Input Field – ICOUNT
Ø  Number of Distance Bands – 10
Ø  Beginning Distance – Default
Ø  Distance Increment – Default
Ø  Distance Method – Default
Ø  Row Standardization – Default
Ø  Output Table – Default
Ø  Output Report File - IncrementalSA_Report.pdf
Ø  Click ok
Ø  Open the report from the Results Window by expanding the Incremental Spatial Autocorrelation result and double-clicking on the Output Report File 
Ø  The graph will be show and confirm that the distance of first peak should be 1400m
Ø  Click on minimized Hotspot analysis tool and open it again
Ø  Fill the boxes as follow
Ø  Input Feature Class  - AggregatedCalls
Ø  Input Field – ICOUNT
Ø  Output Feature Class – CallHotSpots Conceptualization of Spatial Relationships -Fixed Distance Band
Ø  Distance Method - Euclidean Distance
Ø  Standardization – None
Ø  Distance Band or Threshold Distance - First peak distance from graph (1400m)
Ø  Self-Potential - Field Blank
Ø  Weights Matrix - File Blank
Ø  Click OK
Ø  Turn off all layers except CallHotSpots, Response Stations, and Basemap
Ø  Click on Search and write ‘IDW’ and choose IDW (Spatial Analyst) to open the tool
Ø  Fill in the dialog as follows
Ø  Input Point Features – CallHotSpots
Ø  Z value field – GiZScore
Ø  Output Raster – VisualizationSurface
Ø  Output Cell Size – Default
Ø  Power - Default
Ø  Search Radius – Default
Ø  Number of Points - Default
Ø  Maximum distance - Default
Ø  Input barrier polyline features – Default
Ø  Click OK
Ø  Double-click on VisualizationSurface in the Table of Contents and click on the Symbology tab
Ø  Click and chose Stretched, choose the blue to red color ramp, and make sure that the high values correspond to the red colors
Ø  Click on the Display tab and give the surface 40% Transparency
Ø  Click and Select Response Stations, CallHotSpots, and VisualizationSurface
Ø  Right-click on the selected layers and choose Group
Ø  Right-click on the newly created group, and choose Properties
Ø  From the General tab, give the group layer a description ‘ Hotspot analysis results’
Ø  Click OK

Ø  Click on page and print map and give the Title to map and add the North arrow and give coordinate system and export the map in JPEG format

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