In 2008, I was stuck at a crossing south of Ely where the barriers were stuck down and the lights flashing. There was a south bound train stopped a few hundred yards up the line towards Ely. I couldn't tell if the barrier was down because the train was close and had broken down, or if the train had stopped and the barrier was down because of a signalling failure. From the side I was stuck, the view of north bound trains was very restricted. After a few minutes, cars from both directions started going around the half barrier and across the line. Concerned at the risk of north bound trains still running, I went and used the phone to the signal box. The signal man was not at all helpful, told me there was a fault and I would have to find an alternative route. I pointed out that people were crossing the line, and if north bound trains were still running, there was a strong possibility of an accident. With this, he said they would control it from there. I have no idea what he meant by that, whether he was going to stop north bound trains or send someone to the crossing, I don't know. As I started walking back to my car, a driver of an oil tanker waiting the other side came across the rails and asked me what they had said. I told the tanker driver exactly what was said, to which he replied, probably too dangerous to cross then. I was dumb struck, a driver of an oil tanker was even considering manoeuvring around the half barriers. I turned around a drove around via Ely adding about 15 miles to my journey. There was no accident, but I know I did the right thing. I would never cross when the lights are flashing and the barrier down, under any circumstances.