Please cite as: Upham, P., Kivimaa, P., Virkamäki, V. (2013) Path dependency in transportation system policy: a comparison of Finland and the UK, Journal of Transport Geography 32, 12-22. http://dx.doi.org/10.1016/j.jtrangeo.2013. there is a need to better understand how policy for social innovation is entering the sphere of transport and related innovation policy and how these processes might be supported.