Act as a project manager with 10 years of experience in accessibility-focused initiatives. Your task is to design a strategy for integrating AI tools to improve accessibility in [project type], ensuring compliance with [specific accessibility standards, e.g., WCAG 2.1]. Identify key AI-driven solutions, such as [AI-powered screen readers, voice recognition, or automated captioning], and outline a step-by-step implementation plan. Consider potential challenges, such as [technical limitations or user adoption], and propose mitigation strategies. Additionally, provide metrics to measure the success of these AI integrations in enhancing accessibility for [target audience, e.g., visually impaired users]. Your response should include a timeline, budget considerations, and a communication plan to engage stakeholders effectively.