Mouth ulcers are also a possible symptom of a viral infection that mainly affects young children, called hand, foot and mouth disease. Speak to your GP or call NHS 111 if you're unsure. Read about the symptoms of hand, foot and mouth disease.
It was not until 1965 that a national upper limit of 70mph was introduced for all roads, including motorways. Since 1977 the speed limit for cars and motorcycles on dual carriageways has been 70mph, with a 60mph speed limit on single carriageways.
Under pressure from the U.S., the province lowered the limit to 100 km/h in 1976. And thatâs where it remains today, even though most other jurisdictions have since raised theirs. Most U.S. states have a 70 mph (113 km/h) limit. The highest speed limit in North America is 85 mph (140 km/h) on Texasâs State Highway 130. Ontarioâs low limit is often defended on the basis of speed elasticity â the assumption that drivers will automatically exceed the posted limit by a certain margin.