https://www.ispreview.co.uk/index.ph...ch-cities.html
"The 3.1 standard is theoretically capable of delivering a peak downstream speed of 10Gbps ... and uploads of 2Gbps".
Several credible sources have informed ISPreview.co.uk that cable ISP Virgin Media’s future “Gigabit Cities” rollout, which will mark their first major UK activation of the new DOCSIS 3.1 network upgrade, seems likely to be expanded with 3-5 UK cities now in the frame for launch around 2019/20.