  As the underground infrastructure systems of cities age, maintenance and
repair become an increasing concern. Cities face difficulties in planning
maintenance, predicting and responding to infrastructure related issues, and in
realizing their vision to be a smart city due to their incomplete understanding
of the existing state of the infrastructure. Only few cities have accurate and
complete digital information on their underground infrastructure (e.g.,
electricity, water, natural gas) systems, which poses problems to those
planning and performing construction projects. To address these issues, we
introduce GUIDES as a new data conversion and management framework for urban
underground infrastructure systems that enable city administrators, workers,
and contractors along with the general public and other users to query
digitized and integrated data to make smarter decisions. This demo paper
presents the GUIDES architecture and describes two of its central components:
(i) mapping of underground infrastructure systems, and (ii) integration of
heterogeneous geospatial data.
