  The integrated exploitation of data sources in the mobility domain is key to
providing added-value services to passengers, transport companies and
authorities. Indeed, multiple stakeholders operate and maintain different kinds
of data but several interoperability issues limit their effective usage. In
this paper, we present an architecture enabled by Semantic Web technologies to
overcome such issues and facilitate the development of an integrated solution
for mobility stakeholders. The proposed solution is composed of different
components that address challenges for enabling data interoperability, from the
findability of data sources to their integrated consumption adopting
standardised data formats. We report on the implementation and validation in
four European cities of the TANGENT solution enabling data-driven tools for the
dynamic management of multimodal traffic. Finally, we discuss the feedback
received by users testing the solution and the lessons learnt during its
development.
