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Chicago-Crime-Data-Analysis

An analysis of Chicago crime data using Apache Spark. The data can be pulled from the Chicago Crime Data Link. A link to code for analysis is present with every result(Please refer the uncommented code)

Technologies Used

  • Scala
  • Spark Core APIs

Questions Answered about data

There were 594681 cases with no mention of community numbers so they are excluded from the analysis

Top 10 communities with most crime

Community Code Community Name Crime Numbers
25 Austin 368568
43 South Shore 186096
23 Humboldt Park 181174
67 West Englewood 169988
24 West Town 168683
28 Near West Side 164947
29 North Lawndale 163847
71 Auburn Gresham 161269
68 Englewood 152333
49 Roseland 149107

Top 10 communities with least crime

Community Code Community Name Crime Numbers
47 Burnside 8525
12 Forest Glen 10414
74 Mount Greenwood 12113
55 Hegewisch 12433
36 Oakland 12672
18 Montclare 13842
13 North Park 18322
57 Archer Heights 19661
37 Fuller Park 19693
72 Beverly 20673

Top 3 Crime Types

Crime Type Percentage (%)
THEFT 20.91
BATTERY 18.25
CRIMINAL DAMAGE 11.47

What months do criminal like?

Month Number Number of cases Percentage (%)
7 605183 9.3
8 598999 9.2
5 578254 8.88

What months have lower criminal activities?

Month Number Number of cases Percentage (%)
2 446463 6.86
12 478061 7.35
1 507500 7.8

Seeing the above results, we see a pattern that criminals have preferred warmer months to colder months such as Dec for their activities

What is the most unsafe time to be in the streets?

Time Number of cases Percentage(%)
08 PM 371513 5.71
07 PM 370697 5.7
12 PM 369403 5.68
09 PM 363716 5.59
12 AM 361560 5.56

What is the most safe time to be in the streets?

Time Number of cases Percentage(%)
05 AM 86597 1.33
06 AM 102302 1.57
04 AM 104799 1.61
03 AM 139686 2.15
07 AM 147395 2.26

So according to the data, while your morning walk will be pleasant and safe, you need to be careful when you leave your office in the evening or return back home after a drink at the local bar

Which is the most unsafe street (100XX W OHARE ST with 14952 cases)

Crime Type Number of cases Percentage(%)
THEFT 5237 35.03
OTHER OFFENSE 2568 17.17
CRIMINAL TRESPASS 1811 12.11
DECEPTIVE PRACTICE 1386 9.27
BATTERY 931 6.23
NARCOTICS 853 5.7
CRIMINAL DAMAGE 812 5.43
MOTOR VEHICLE THEFT 455 3.04

Which is the most safe street ( 027XX E 126TH ST with 1 case)

Crime Type Number of cases Percentage(%)
CRIMINAL DAMAGE 1 100.0

Is Chicago PD doing a good job?

Arrest Done Number of cases Percentage(%)
No 4519824 71.9
Yes 1766253 28.1

Going by the numbers, we see that arrest was done on a very small percentage of criminal cases

Contributions

Open an issue for more questions which you think can be answered through this data and raise a PR if you find any bugs/improvements in the code