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Hitachi builds railway solutions that serve as infrastructure for economies worldwide, including technology for monitoring and maintaining overhead lines on train networks. The company deployed the Databricks Lakehouse Platform to power computer vision and ML models that analyze video data from cameras installed on trains, automatically detecting defects and displacement in overhead lines across 40,000 km of track. The result is predictive maintenance that has discovered thousands of equipment risks and saved Hitachi's customers an estimated millions of pounds in avoided disruption costs.