  A generalized distributed tool for mobility choice modelling is presented,
where participants do not share personal raw data, while all computations are
done locally. Participants use Blockchain based Smart Mobility Data-market
(BSMD), where all transactions are secure and private. Nodes in blockchain can
transact information with other participants as long as both parties agree to
the transaction rules issued by the owner of the data. A case study is
presented where a mode choice model is distributed and estimated over BSMD. As
an example, the parameter estimation problem is solved on a distributed version
of simulated annealing. It is demonstrated that the estimated model parameters
are consistent and reproducible.
