A posted speed limit sign indicates the maximum speed permitted on the roadway for daytime or nighttime. In the case of the example in the question, the permitted speed at all times would be 55 miles per hour.
No. Regardless of what the sign says you're only allowed to drive as fast as what's considered "safe". If conditions are poor(bad visibility due to rain, fog, whatever) you might get ticketed for reckless driving or endangerment even if you're not exceeding the speed limit.
No. The posted speed limit on any highway is the maximumspeed allowed under ideal driving conditions. You are required to adjust your speed according to actual road and driving conditions. You cannot be ticketed for 'speeding' if you are not exceeding the maximum speed limit, but you can be ticketed for 'driving too fast for conditions'. Those conditions can include curves, hills, dips, poor visibility, poor weather, or simply, heavy traffic, among others.
No, that does not mean you can always drive 55. You may drive up to 55, but should adjust your speed to match the road conditions. It would be too fast on an icy road and you could be ticketed for an unsafe speed.
Yes, but you can go up to only 5 mph more. No more than that.
Indicates the maximum speeds permitted on the roadway for day-time and nighttime.
No it doesn't. If there are bad weather conditions (such as icy roads) which would make it unsafe to drive at 55 mph, then you have to slow down.
No
30 mph
the posted speed limit
No, especially it's raining or for other inclement weather. Even if you drive the posted speed limit on highway you could be issued a traffic citation for driving too fast for conditions.
Whatever the posted speed limit is.
No. The posted speed limit of 55 miles an hour means you can drive a maximum of 55 miles an hour when it is safe to drive at that speed. Only an idiot would drive at that speed in fog and high wind.
55 on the highway, and 30 in the city.
Always
Whatever the posted speed limit is.
No faster than the posted legal limit!!
true
Alberta maintains the fastest speed limit in the provinces; on the Queen Elizabeth II Highway (Highway 2) between Calgary and Edmonton posted limits are 110km/h however the defacto limit by most drivers is typically in excess of 130km/h. The Trans-Canada Highway (Highway 1) between Calgary, Alberta and the Saskatchewan border is also posted at 110km/h with actual speeds mirroring those on Highway 2 to which it is linked.
The speed limit is the top speed that is legally allowed. If it is exceeded, you are breaking the law.