Overhead Line Equipment (OLE) hot weather resilience - Targeted Assurance Review

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Following a series of overhead line equipment (OLE) incidents in summer 2019, ORR carried out a TAR – Targeted Assurance Review to gain understanding of the impact of the incidents and what Network Rail is doing to make the OLE asset more resilient in hot-weather. By reviewing the OLE performance in summer 2020, this TAR also evaluated the effectiveness of follow up actions taken by Network Rail.