RATP DEV LONDON STRIKE: RATP Dev London bus services in parts of west, south west and north west London and parts of Surrey may be disrupted on Thursday 15 April. TfL is working hard to minimise potential disruption but customers who need to make journeys are advised to check before they travel. Industrial action would affect services from 00:01 Thursday 15 until 06:00 on Friday 16 April.