There are many factors which limit speed of response. Some major factors would definitely be age, general health, and athletic abilities. Good hand-eye coordination would also be a factor in response time.
Varies by jurisdiction. Ultimately, it will be whatever speed limit is posted.
They are allowed to exceed the speed limit when Lights and siren are all on.
In response to high oil prices.
There isn't one set, standardized speed for this. The construction site speed limit will vary according to a number of factors, such as number of lanes open, original speed limit on the road, proximity of work crews and equipment to the road, etc.The speed limit is whatever is posted on temporary speed limit signs.Rule of thumb is half the posted speed limit.
They mean if you drive over 50 MPH, you will get a speeding ticket.
826 limit
There are many factors that you should consider when selecting the speed of your vehicle. Some of the important factors include stability, consumption of the vehicle as well as the main purpose of the vehicle.
the posted speed limit
When another speed limit sign is reached that changes the limit from the previously posted one.
The speed limit is exactly that - the speed limit. While a reasonable excess of speed might be overlooked when overtaking another vehicle, there is no guarantee. You can be pulled over and cited for speeding, still.
The posted speed limit is the max speed.
In the UK the speed limit comes into force as soon as you pass the speed limit sign. As such the distance is zero as you should have slowed down to the posted speed limit before passing the sign.