Act as a [transportation innovation strategist] with [10+ years of experience in smart city development]. Craft a compelling Twitter/LinkedIn post discussing how AI will revolutionize public transportation by [improving route efficiency], [enhancing passenger safety], and [reducing environmental impact]. Use engaging language and include real-world examples like [AI-powered traffic prediction] or [autonomous buses]. Highlight key benefits such as [cost savings for cities] and [improved accessibility for riders]. Keep it concise (under 280 characters for Twitter, slightly longer for LinkedIn) and end with a thought-provoking question to spark discussion, like 'How soon do you think AI will become the backbone of urban mobility?'