Officials also want to prevent drivers tailgating one another, a common sight on Polish roads.
On motorways and dual carriageways, motorists will have to keep a distance from the vehicle in front that is half their speed.
That means a driver travelling at 100 kilometres per hour will have to keep a distance of 50 metres from the car ahead, unless overtaking.
Meanwhile, the government has decided to cut the speed limit in built-up areas to 50 kmh at night.
Under current rules, the limit in such areas is 60 kmh between 11pm and 5am, and 50 kmh at other times.
(pk)
Source: IAR