Chance of being killed on the road?

Just like their 'Speed kills' soundbite here is another from the DfT. You have a very high 200 to 1 chance of being killed on Britain's roads. 

How do they arrive at this? In the small print it is over a lifetime based on between 75 and 100 years which defeats their own point. 

How soon will the time frame get lost so it becomes a given that the death odds are 200 to 1? 

A more realistic time frame is in any hour. This lessens the odds to a massive 175 Million to one.

 So the odds of being killed in a road accident, on an hour to hour basis, is only 175 Million to 1 folks. Sleep easy.