The London Times on traffic regulation (AKA what I read on my flight to Geneva on May 2)

Front page story:
Fewer speed camera fines as police lose right to cash: The article noted that this occurred at the same time as "road deaths fell to their lowest level since records began".

Flip a few pages in and what do you find? A second article (unfortunately not available online without subscription) entitled "Traffic lights turned off so drivers and pedestrians can get to know each other". This article detailed an upcoming experiment in London with disabling traffic lights to see if traffic flow was improved. This was based on a theory that traffic flows better without them and was supported when "the lights failed one day at a busy intersection and traffic flowed better than before. Interestingly it also noted similar experiments in the Netherlands:

In the Dutch town of Drachten the removal of traffic lights at one big junction resulted in crashes falling from 36 in the four years before the scheme was introduced to two in the next two years. The average time for each vehicle to cross the junction fell from 50 seconds to 30 seconds despite a rise in the volume of traffic.

Add the two together and it seemed like some great evidence to support my conclusion that, particularly as currently enforced, speed limits are counterproductive. Think as well about "school zones" - would you rather have a driver pay attention to the road or their speedometer.