While information and communications technologies offer avenues for disseminating information to help passengers navigate multimodal systems, they also come with challenges in the form of usefulness of information content, imbalances in information supply across modes, and barriers to information access. This paper reflects on the design of a mixed methods approach framed within Amartya Sen's capability approach for investigating and addressing these challenges. Using Cape Town, South Africa as a lens of study, this paper investigates user information needs, technology capabilities related to mobility information, and informational capabilities of captive public transport users to access multimodal mobility information through technology.