Quote:
Originally Posted by GGG
However you need to know the brake down between collector and residential as collector roads are not affected by this motion. So if we are down to 180 possible accidents that could be prevented each year. If you cut that in half again you are down to 90. Then factor in that 20% are hit and run and you aren't changing those peoples behaviour by change the law and you are down to 75.
So you want to waste 700 years of Calgarians lives to prevent 75 accidents which we know that the majority occur at below 30km/hr already.
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700 years? It was calculated as +1 minute on the average commute. You need that time so badly you're willing to risk hitting and potentially killing someone?
And sure you can argue that a single minute every day adds up, but you have to consider the other side of that argument as well — because at one pedestrian collision per day, the city says the total cost is upwards of $120 million a year (
Source).
As you argued, this change won't prevent every collision, so let's use your calculation of ~40% effectiveness (75 accidents prevented / 180 preventable accidents)... that's almost $50M a year. Not bad for two minutes a day.