Audi's latest driverless-car concept specifically gives pedestrians priority over cars -- they want to make driverless cars safe enough to be let loose on pedestrian malls without hurting people or damaging the landscaping.
Really, when you think about the size of liability claims a driverless-car manufacturer will face the first time a sympathetic pedestrian gets hit, they'd be foolish not to incorporate far better avoidance systems than the average human driver.