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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