It is an unfortunate fact that traffic accidents in Thailand are most evident during festive and holiday seasons. Some of the most popular ones are the traditional Thai New Year holidays (locally known as Songkran holidays falling between the period of 12–15 April every year) and the year end and New Year celebrations, both of which usually have extremely high casualties and several thousand injured accident victims throughout the country. For the past New Year holidays, a total of 606 accident fatalities together with an other 35,286 injuries were recorded during a short span of only one week (27 December 2002 to 2 January 2003). In fact, the accident situation of this past New Year worsened compared with the previous years shown in Table 3. It can be clearly seen that the death tolls have risen every year from 454 persons in 2001 to 606 persons in 2003. The number of injured victims due to road accidents has also increased from 23,786 in 2001 to 34,303 and 35,286 in 2002 and 2003, respectively. If the accident trend continues in this direction, the holiday seasons will no longer be merry for the Thais to celebrate.