Army deputy spokeswoman Sirichan Ngathong said the commander-in-chief's order was aimed at helping to reduce road accidents during the festive period, when extremely heavy traffic is normal on interprovincial roads.
Motorists who feel weary and need to rest and relax would be welcome to take a break at all military camps along main highways, and those located at popular tourist destinations, from Dec 28 to Jan 2. Soldiers would also help direct traffic in front of their bases.
A service centre will be set up in front of each camp to provide water, refreshing towels, medical first aid, route advice and motorist rest stops.
Col Sirichan said camping and recreational facilities in the army bases would also be open for New Year revellers.
All army-run hospitals have been instructed to have medical teams and equipment on standby to provide assistance as needed, in coordination with local health offices, she added.
National police chief Adul Saengsingkaew said plans were in place to control traffic in Bangkok and other provinces during the New Year festival .
Police would coordinate with leaders of the People's Democratic Reform Committee (PDRC), which is leading anti-government protest rallies in the capital, to ensure minimal affect on traffic if they hold demonstrations during the holiday period.