Traffic in Thailand drives on the left side of the road.
Most drivers are well mannered, almost polite, be it up to a certain level. You will hardly ever hear a car honking and anger is never displayed. Despite this, traffic is rather hectic in and around busy Bangkok where calm driving is not really appreciated.
On many rural roads or even in Bangkok's small alleys, you will find motorcycles, cars and occasionally your 12 wheel trucks maneuvering against (one way) traffic. This situation is complicated by the fact that many of Bangkok's roads change their one-way direction at certain hours of the day and by the fact that every new governor of Bangkok has a new traffic plan to solve the city's traffic jams. Every such plan involves changing the flow of traffic, which causes one way roads to suddenly run in the opposite directions or the number of lanes being reduced from, in extreme cases, eight to one. Regular roads may become bus lanes overnight, which then causes thousands of drivers to exit from the incorrect ramps on the expressway, thus clogging up traffic worse than before. Usually this last for a few months, after which the government changes or they governor realizes that the problems can not be solved and then things go back to normal. Several computer traffic control systems have been tested of even installed, but none of them seem to resolve the situation. It has been whispered that the local traffic constables are very uncooperative when it comes to these systems that could make their employ obsolete. Some companies may even mention the word "sabotage", when asked about the failure of their traffic control system.