5 ms·

Fed ex avoids left turns - https://www.washingtonpost.com/news/innovations/wp/2014/04/09/the-case-for-almost-never-turning-left-while-driving/?arc404=true https

• herenorthere 7y ago
  I think I read an article like this on HN a few months ago, ty for the share
• OnlineGladiator 7y ago
  It's also a serious consideration for companies working on self-driving cars, as unprotected left turns are extremely difficult for the robots.
  • ufmace 7y ago
    Not too surprising if we think about it. At a significant number of unprotected lefts at busy intersections, you basically have to semi-aggressively pull out in front of oncoming traffic and rely on them to slow down for you in order to get through in a reasonable time. It's tough to automate that in a safe way. Especially if it involves fuzzy value judgements about whether those cars seem like they'll probably slow down for you.
• graeme 7y ago
  Would be a great navigation mode for maps apps to add. No left turn or easy driving mode. If ups does it, why not others?
  • aeyes 7y ago
    That should just be the default routing unless it's absolutely unavoidable.