As an up Desiro service pauses at Kings Langley station

the 4M87 Felixstowe North to Trafford Park Freightliner heads north with 66536 leading. Whilst the front of the 'liner is devoid of boxes there were plenty towards the rear of the train. However, it is always a cause for concern when freight trains travel only half-loaded. The large concrete bridge in the background carries the M25 orbital motorway over the railway and then on a viaduct over the valley of the River Gade just near to Junction 20.