Understanding of social sustainability has deepened as concepts of transport justice, mobility and access highlight the importance of health, safety, security, but also human agency, rights and civic competence as strategic within the social determinants of health. Gender helps to assess progress towards social justice. How can transport systems correct, offset, or adequately respond to the complex socio-cultural issues involved in gender-transport issues? To what extent can sustainable mobility act as an agent of change for gender and to what extent can gender contribute to achieving more sustainable mobility?