Large lettering and shapes of graffiti on footbridge

Large lettering and shapes of graffiti on footbridge railings and floor. Mainly on the railings of the first slope (from The Sidings street end of the bridge) but also continues over the footbridge and onto the other side (Braunston Rd.) In a few places a large T like shape in a circle has been graffitied on the floor and it appears again on a wall at the beginning of Long Row (if travelling from the footbridge end.) This is the worst graffiti I have seen in a while. I walk over the footbridge multiple times a week and it has been there now for a fortnight. There is a lot of rubbish under the footbridge entrances which suggests that groups are hanging out there. It makes what is usually such a well looked after area look rough and unsafe.