Ensuring widespread accessible mobility has the potential to positively impact the lives of millions of people with disabilities by moving and connecting them to what matters, in addition to improving mobility for everyone through the benefits of inclusive design. To enable cross-disciplinary solutions, an overview of several key research areas for advancing the field of accessible mobility will be provided, covering aspects including the accessibility ecosystem, physical and digital methods for improving accessibility, and accessibility safety. Recent advancements and opportunities for innovation will be highlighted, with the aim of developing a holistic inclusive transportation architecture, leveraging the ongoing and future transformation of the industry.