My research aims to investigate ways to support mobile users facing “severely constraining situational impairments” (SCSI) where multiple channels of communication are restricted, overloaded or unavailable. An empirical study will initially be undertaken to identify the range of limitations faced by mobile device users when facing unpredictable situations (e.g. when receiving a text message while concentrating on the road when driving). Based on the findings, a second study will be developed to map feasible forms of technology to the impairments faced. A final study will then be conducted to evaluate the efficacy of the mappings, with the ultimate goal of producing a set of guidelines that will inform interface designers when developing tools to support individuals who are facing severely constraining situational impairments. The outcomes of this research will hopefully inform design of mobile technology in addressing SCSIs.