I actually did this for my bachelor's thesis[1] (maps on p52-53). It's not a pure time-distance representation (constraints on angular distortion to preserve si

I actually did this for my bachelor's thesis[1] (maps on p52-53). It's not a pure time-distance representation (constraints on angular distortion to preserve similarity to conventional maps), but anyway. Data is from railway/tram time tables. [1] http://lazarus.elte.hu/hun/digkonyv/szakdolg/2013-bsc/barancsuk-adam.pdf http://lazarus.elte.hu/hun/digkonyv/szakdolg/2013-bsc/baranc... (in Hungarian)