The system of slow zone caution areas used at the Le Mans 24 Hours has been modified for the 2017 edition of the race.
Le Mans Hypercar - Wikipedia
Porsche LMP Team faces hard fight for the overall victory
24 Hours of Le Mans - How the Slow Zones work
Safety Car Changes Will Make This Year's Le Mans Look Very Different
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Le Mans Hypercar - Wikipedia
High Arctic channel incision modulated by climate change and the
Le Mans News, Information, Updates, Expert Analysis and Opinions
Kobayashi, Bourdais: Le Mans Slow Zones Need “Big Rethink
Le Mans News, Information, Updates, Expert Analysis and Opinions
Origins of Ford GT40 - Le Mans Committee Victory
Ford GT40 - Wikipedia
Le Mans News, Information, Updates, Expert Analysis and Opinions