Crime Analysis in New York City 2023

Are you aware of the high-density crime areas in New York City?

Methodology

Select By Attribute

Map Setup & Data Preparation

Project

  • Project layers into the same coordinate system.

Select By Attribute

  • Isolate and retain only the data pertaining to the year 2023.

Spatial Join

Spatial Join

  • Re-assign records with inappropriate or missing precinct numbers or borough information.


Statistical Analysis

Relate tool

Relate

  • Relate crime data with the boroughs and police precincts layers.
  • Subsequently displaying all crime records associated with that specific area.

Summary Statistics

Summary Statitsics

  • Quantify the aggregate criminal records by police precincts, borough, level of offense, and type of offenses.
  • Create statistics tables for further analysis.

Join

  • Join the statistics tables with borough and police precincts' attribute tables.

Calculate Field

Calculate Field

  • Introduced new fields for storing statistic summary results.
  • Assign values to the new fields referred to the joined table fields.

Create Chart

  • Create Time line plot, Pie chart, and Bar chart for visualization.

Spatial Analysis

Labeling and Symbology

Heat Map

  • Label the borough name or precincts number to corresponding areas.
  • Create boundaries for boroughs and precincts.
  • Symbolize each crime record as a unique value, shown as a bot.
  • Use heat map as the primary symbology showing the crime density.

Kernel Density

Visibility ranges

  • Set the visibility range for crime record layer, avoiding distraction from overall analysis standpoint

Kernel Density

  • Create a sophisticated Crime Density map, facilitating a deeper understanding of spatial crime distribution

Time Property Setting

Temporal Analysis

Time Slider

  • Select records of specific time range, for observing changes across different periods


Main Finding

Temporal Analysis

Trends in Crime Report By Month in 2023

Observations

  • No clear seasonal trend is apparent.
  • The marked decrease at the end of September.

Interpretations

  • Influence by non seasonal factors.
  • There is either a real decline in crime reports for September or incomplete data collection for that month.

Monthly Trend


Crime Type

Level of Offense

Level of Offenses

7 Major Felonies

7 Major Felonies


Limitation & Future Work

Limitation

Our analysis is specifically focused on the data from 2023, which is currently only available up to September. This may caused the following issues:

  • Analysis only based on the 9-months data, missing the fourth quarter trends and impacting the full-year crime understanding.
  • Resource and policy decisions based on partial data may not align with actual annual crime trends.

Future Work

  • Implement real-time crime data integration in ArcGIS Pro for dynamic mapping and timely response.
  • Apply advanced spatial analysis in ArcGIS Pro to forecast crime with hotspot and predictive models.
  • Create a community platform for crime reporting to feed into ArcGIS Pro for richer analysis.
  • Enrich the analysis with deeper demographic data for nuanced insights into crime trends.

Conclusion

Our analysis of New York City's crime data for 2023, using ArcGIS Pro, has identified critical patterns and relationships between crime density, population density, and income levels.

By merging NYPD complaint data with demographic information, our project has revealed nuanced insights into the spatial distribution of crime, contributing to a more comprehensive understanding of urban crime dynamics that are essential for developing targeted public safety strategies and resource allocation. The methodology adopted, inspired by established crime mapping projects, highlights the significant role of GIS in deciphering the intricate fabric of urban crime. It is important to acknowledge the time frame of our dataset, which is limited to September 2023, as it may not provide a complete picture of the annual crime trends. Future work should aim to incorporate extended data and further socio-economic variables to enhance the accuracy and depth of our urban crime analysis.


You Might Also Like


Data Source

Select By Attribute

Spatial Join

Relate tool

Summary Statitsics

Calculate Field

Heat Map

Kernel Density

Time Property Setting

Trends in Crime Report By Month in 2023

Level of Offenses

7 Major Felonies