Residents in Shoreditch are used to the amateur photographers, the tour groups, and the general hustle and bustle of the capital’s nightlife. But those living in one particular cobbled cul-de-sac are being kept awake by a new scourge — the sound of self-driving cars beating a retreat from their narrow street. Over the past month, several Waymo vehicles have attempted to drive down Elder Street, only to be stopped by the metal barrier at its end. Human drivers, who sit behind the wheel of every Waymo car during the fleet’s training period, have been forced to reverse back down the street while sounding a loud siren. One resident’s anger reached such a pitch that she confronted a Waymo driver on Sunday. Jenny Black, 59, reported hearing the vehicle more than four times in the past month. “I’ve never heard any car alarm like that so loud anywhere,” she said. “The car was at the gate and there was a sort of red 4×4 behind it. He beeped the white [Waymo] and I thought, ‘This is interesting — it’s great that someone’s actually confronting them.’ “He got out of his car, he went to talk to the driver, which is when I thought, ‘Oh, there’s someone in there.’ And so I put on my little shoes.” Black said the Waymo driver was asked why he had entered the street, and whether he had seen the no-through road sign. She said they replied: “It’s driving itself, but we’re continuing to test it … I just have to let it self-drive, and then when it does something wrong, I correct it.” When told by Black that the car had already done something wrong by driving into a cul-de-sac, she said they replied: “It’s my first day.” Black, a former interior designer who is