Self-drive car chaos
Once daredevils, cyclists and pedestrians work out just how safe they are with this new technology (Google’s self-driving car avoids hitting a woman chasing a bird, theguardian.com, 17 March), it is easy to imagine how there might be a battle for rights of way. Busy crossings during rush hour could become an unbroken stream of pedestrians as self-driving cars wait helplessly. It is only a small leap from here to imagine the physical measures that may need to be implemented to keep vehicles and pedestrians separate. Fenced in pavements? Raised roadways?
Robert Cullen Gothenburg, Sweden