Too hard in the pocket, tomorrow, ulez is expanding as planned. that was katy austin. staying with vehicles. earlier this month, san francisco voted to allow driver less taxis which they call robotaxis to operate 2a hours a day. passengers have to book and pay for the journey via an app. but after a high profile accident, there are renewed safety concerns, and some people are detirmined to get them off the roads. here s james clayton. one of the things that surprises many visitors when they arrive in san francisco are these things, driverless robo taxis. they re all over the city. this is me ordering one on my phone. one minute away, there s a cab just around the corner. but before i could even get in, a member of the public approached us with a warning. i think you re unsafe, because i saw a guy that was in the crosswalk at night, almost got hit by it. well, thank you very much, sir, cheers. not exactly the ideal thing to hearjust before you get