In 2016 the Ethos Active Mobility system was installed in the tunnel to monitor and actively manage tunnel usage. The system uses computer vision to count and measure the speed of bicycles and pedestrians, and displays messages on electronic signs to encourage considerate behaviour. The system has also been installed in the Woolwich foot tunnel and aims to make urban shared spaces safer and more pleasant to use for all. The system displays two messages: "No cycling allowed" (in red text) during busy periods, and "Please consider pedestrians" (in green text) during quiet periods. As of March 2017 this system is still in its trial phase, and cycling in the tunnel is still not permitted and will not be until the bylaws are changed. Despite this there are still many who cycle through the tunnel.