Related Experiment Video
Updated: Jun 3, 2026

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research
Published on: December 18, 2020
Differences in traffic violations and at-fault crashes between license suspension and revocation
Kwang Sik Kim1, Myo Hee Myeong, Young-Jun Kweon
1Department of Public Administration, Sungkyunkwan University 53, 3-ga, Myungryun-dong, Chongro-gu, Seoul, Republic of Korea. kskim@skku.edu
Drivers with license suspension committed fewer traffic violations and crashes than those with license revocation. This study compared outcomes for drivers with suspended versus revoked licenses in South Korea.
Area of Science:
- Traffic Safety
- Criminology
- Transportation Policy
Background:
- License revocation is a penalty for traffic offenses.
- Drivers may appeal for sentence reduction, often resulting in license suspension.
- Post-restoration driving behavior differences between these groups are unknown.
Purpose of the Study:
- To compare traffic violations and crashes between drivers with license suspension versus revocation.
- To analyze differences at 6, 12, and 18 months post-restoration.
Main Methods:
- Analysis of covariance and t-test used.
- Stratified sample of approximately 154,000 South Korean drivers.
- Follow-up periods of 6, 12, and 18 months.
Main Results:
- Drivers with suspended licenses had fewer traffic violations and crashes.
- This finding held true across all follow-up periods.
- The difference was statistically significant.
Conclusions:
- License suspension may be a more effective sanction than revocation regarding post-restoration driving behavior.
- Omitted factors like driver attitude and exposure require further investigation.
- Caution is advised when applying findings to policy due to potential confounding variables.
Related Concept Videos
Hypothesis Test for Test of Independence
H0: The two variables (factors)...
Introduction to Test of Independence
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
Sight Distance in a Vertical Curve
Theory of Attribution II: Kelley's Covariation Theory
Causes of Similarity-Dissimilarity Effect
Types of Reports II: Incident or Occurrence Report
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...

