The accumulated death toll rose to 167 on Saturday, the third day of the "seven dangerous days" of New Year's holiday travel, with Si Sa Ket recording the most deaths.
A total of 1,793 people were injured in 1,702 road accidents across the country from Dec 28-30, Pol Maj Gen Ekkarak Limsangkat, commander of the 3rd Special Branch Bureau, said on Sunday.
On Dec 30 alone, a total of 73 people were killed and 688 injured in 649 road accidents nationwide.
The most common cause of the fatalities was determined to be drink-drinking (47.92%), followed by speeding (21.88%). Most accidents involved motorcycles (78.77%), followed by pickup trucks (8.07%), said Pol Maj Gen Ekkarak, citing a report from the Road Safety Directing Centre.
The highest number of road accidents over the past three days - 62 - was reported in Chiang Mai.
Si Sa Ket recorded the highest number of deaths - nine - while Buri Ram had the highest number of injuries - 69. Twenty-one provinces reported zero deaths and injuries, said Pol Maj Gen Ekkarat.
Police set up 2,010 checkpoints across the country during Dec 28-30 and stopped 762,143 vehicles for road-safety checks. A total of 132,995 motorists were cited for traffic law violations, including 38,271 motorcycle riders without crash helmets and 36,662 drivers without driving licences, said the police commander.