<p>The number of signals passed at danger by London Underground or on London Underground's infrastructure.
</p>
<p>The number of signals passed at danger are reported, with details of the line, location, date of occurrence, the delay (minutes) incurred to the service and a brief description of the incident.
</p>
<p>The TfL Group Health Safety Report is available in the <a href="http://www.tfl.gov.uk/corporate/publications-and-reports/" title="TfL Publications and Reports">TfL Publications and Reports</a> webpage. This includes a report on signals passed at danger on London Underground.
</p>
<p>This dataset currently contains incidents for period 1 in 2011/12. The <a href="https://s3-eu-west-1.amazonaws.com/londondatastore-upload/tfl-lu-spad-2010-2011.csv">complete data for periods 1 to 13 in 2010/11</a> is also available.
</p>
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