(1) General trend
  Fig. 4-1-2-2 shows the number of juveniles referred by the police to family courts for violations of road traffic related acts and the number of juvenile violations of the Road Traffic Act since 1966.

Fig. 4-1-2-2  Number of juveniles referred for violations of road traffic related acts, and number of juvenile violations of Road Traffic Act (1966-2006)

  The number of juveniles referred by the police for violations of road traffic related acts as penal offenses has declined since 1987, when the scope of the traffic violation notification system was expanded. The number of juvenile violations of the Road Traffic Act hit a peak in 1985, and has decreased ever since.
  Of the violations in penal cases involving juveniles in 2006, driving without a license had the largest share (32.5%), followed by excessive speed (25.8%), and driving under the influence of alcohol (5.4%). The percentage of driving without a license was higher than that (6.2%) of adults (Source: The Traffic Bureau, National Police Agency).

(2) Hot rodders
  Fig. 4-1-2-3 shows the number of hot rodders and the number of their groups since 1997. The numbers of hot rodders and juveniles have been on a downward trend, and the number of hot rodders'groups has also been decreasing since 2003.

Fig. 4-1-2-3  Number of hot rodders and of their groups (1997-2006)