The Metropolitan Police Bureau ( MPB) has set a fresh maximum speed limit of 60 miles per hour for most roads in the city, exempting main thoroughfares, and 50kph near the Grand Palace, successful soon.  ,
The new rules, which was released on Monday in the Royal Gazette, would improve traffic control and lessen private road accidents. It took impact on Tuesday.
All but 13 major roads are subject to the new 60 kph speed control. The free routes are:
- Vibhavadi Rangsit Road
- Bang Na-Trat Road
- Srinakarin Road
- Phahon Yothin Roa
- Ram Intra Road
- Ratchaphruek Road
- Baromratchonnanee Road
- Kanlapaphruek Road
- Rom Klao Road ,
- Suwinthawong Road
- Chaengwattana Road
- Rama III Road
- Srinakarin-Rom Klao Road ( new )
On the following 10 routes close to the Palace the speed limit is then 50kph, with an more” no honking of horns” requirement:
- Ratchadamnoen Nai Road
- Na Phra That Road
- Prachan Road
- Na Phra Lan Road
- Sanam Chai Road
- Kalayana Maitri Road
- Mai Wang Road
- Maha Rat Road
- Rachini Road
- Setthakan Road
This speed limit also applies on roads where the posted posted speed limit is presently 45 kph.  ,  ,