A Noise & Vibration investigation was undertaken in June 2017 in Ashburn Avenue (with those residents whose gardens back on to Harrow-on-the-Hill station tracks) which confirmed excessive noise from vibrations due to moving of crossover. On 11 January this year a Transport for London (TfL) Customer Services Advisor confirmed they had found a supplier for the acoustic fencing and they would undertake site visits from the end of January. On 24 April 2018, my constituent received a further letter from TfL stating that they were looking at late 2018 for installation of the sound barrier, the delay was due to the necessity to address the same issue over in Woodford! This raises some totally unacceptable questions. Failure to consider serious noise impact prior to undertaking major works; failure to address the noise vibrations over a long period e.g. over a year in this instance and still no sight of resolution; and why TfL is relying on one or a very limited number of contractors to deal with the issue across London? I would appreciate an urgent update and clarification on how such problems are managed and what do my Ashburnham Avenue constituents can expect to resolve the problem?