Introduction

Visualizing traffic offenders across Australia

Main Contents

The project covers three key offender categories to support comparison and interpretation across Australian jurisdictions.

Target Audiences

  • Traffic police officers who monitor roadside offences and enforce traffic laws.
  • Road safety analysts who examine offender trends and compare patterns across jurisdictions.
  • Government transport agencies that plan policy, campaigns, and enforcement strategies.
  • Researchers and students studying traffic behaviour, public safety, and visual data analysis.
  • Community awareness teams and educators who communicate road safety risks to the public.
Topic 01

Drug Offenders

  • Tasmania is a chronic hotspot, with positive rates consistently around 45 to 62 percent across 16 years.
  • Testing volume does not equal detection rate: Victoria tests the most, while Tasmania records the highest positive rate.
  • Queensland's rise from 4.7 percent in 2012 to 21.3 percent in 2024 suggests a genuine increase in prevalence.
  • Year-on-year change shows momentum, with Tasmania and WA worsening while Victoria and SA are improving.
  • Young adults aged 17 to 39 account for roughly 70 to 80 percent of positive tests.
Topic 02

Speeding Offenders

  • Camera fines are much higher than police fines, with camera-issued fines exceeding 2 million while police peaks are just above 500K.
  • Annual total fines are rising while the average cost per ticket is falling, suggesting the number of speeding tickets is decreasing over time.
  • Most speeding fines are concentrated in major cities, showing that violations are more likely in urban areas.
  • Automation is a clear future trend, as the rise in camera-issued fines shows growing dominance over manual enforcement.
  • More serious incidents tend to happen in urban areas, where similar ticket counts still produce higher total fines than remote areas.
Topic 03

Alcohol Offenders

  • NT is a major hotspot, with a positive rate of 6.21% — nearly 5x higher than ACT (1.36%) and far above the national average.
  • Victoria and NSW perform best, recording the lowest rates at 0.36% and 0.41% respectively.
  • COVID-19 disrupted enforcement in 2020–2021 — testing dropped sharply but positive rates spiked temporarily.
  • Major Cities have the highest positive rate (0.44%) despite Regional areas accounting for 57% of all tests conducted.
  • Testing volume has declined since 2008, yet positive rates remain stable, suggesting test volume alone doesn't drive detection rates.

Contributors

This section is kept separate from the project topics so the team information reads as its own area.

Member 01
Khang

Nguyễn Hữu Thiên Khang

105543416

Analyze and build dashboard for Speeding offender data.

Member 02
Duy

Đỗ Đức Duy

105550034

Analyze and build dashboard for Drug offender data.

Member 03
Long

Nguyễn Hoàng Long

105556692

Analyze and build dashboard for Breath Test offender data.