DaleCooper
Established Member
Watching this video I wondered what is the purpose of the blue metal fencing seen at 31:20?
Thank you.It identifies a work site. It means P-Way staff can work behind the fence without needing to block the line, they are (almost?) always blue to make them easily identifiable.
Certainly orange would cause this problem - for that reason I don't believe it has ever been used for this purpose. And red, yellow and green might be confused at a distance with signal flags, black brown and grey would be harder for the workers to see. So blue is the only colour left!I believe fencing is blue to provide a high contrast with the orange hi-vis worn by trackworkers versus the orange fencing previously used.
In the video comments it's suggested it's not actually a live soundtrack, but a loop of generic background noise.Great video, I didn't hear the AWS, I wonder if the camera was attached to the outside.
Also, I keep hearing a strange sound now and again, 35:30 is an example. Any ideas?
If I recall from my days of letting supply contracts, the Vortok fencing was a lot more expensive than the original version of rigid fencing, but when you took into consideration the time taken to assemble and dismantle, made the whole job cheaper and quicker to do. In terms of the blue plastic fencing , that indeed did replace orange because of what the driver saw . I suspect it also went out of favour, with having to drive metal stakes into the ground. Of course if you were not 100% sure what was under the ground, there could be more damage. The original style plastic fencing seemed very flimsy, held on with cable ties.It's called Vortok fencing and provides a barrier between the staff working and the track. A fenced green zone. Each of the arms has a strong magnet which attaches to the web of the rail, the blue fiberglass poles clip on to the arms.
You'd need at least a line block and possibly a possession to put up and take down the fencing, because by definition the workforce are not in a protected green zone. So being able to do that quickly is very helpful.If I recall from my days of letting supply contracts, the Vortok fencing was a lot more expensive than the original version of rigid fencing, but when you took into consideration the time taken to assemble and dismantle, made the whole job cheaper and quicker to do. In terms of the blue plastic fencing , that indeed did replace orange because of what the driver saw . I suspect it also went out of favour, with having to drive metal stakes into the ground. Of course if you were not 100% sure what was under the ground, there could be more damage. The original style plastic fencing seemed very flimsy, held on with cable ties.
The old-style netlon fencing with the stakes is still a permitted option but also has to be blue now. You're quite right to say it's all but gone because of the issue of hitting a service with the stakes.If I recall from my days of letting supply contracts, the Vortok fencing was a lot more expensive than the original version of rigid fencing, but when you took into consideration the time taken to assemble and dismantle, made the whole job cheaper and quicker to do. In terms of the blue plastic fencing , that indeed did replace orange because of what the driver saw . I suspect it also went out of favour, with having to drive metal stakes into the ground. Of course if you were not 100% sure what was under the ground, there could be more damage. The original style plastic fencing seemed very flimsy, held on with cable ties.
Anyone working inside a line block or a possession is by definition in (what used to be termed) a safeguarded green zone.You'd need at least a line block and possibly a possession to put up and take down the fencing, because by definition the workforce are not in a protected green zone.
Yes indeed, I wasn't making myself very clear. The people putting out or taking up the fencing would need train movements stopping on the nearest track, unlike the people working on the "safe" side of the fencing while it is in place.Anyone working inside a line block or a possession is by definition in (what used to be termed) a safeguarded green zone.
The field of view, with the running line towards one side of the screen rather than in the middle, makes me suspect that it was indeed on the outside on the right-hand side.Great video, I didn't hear the AWS, I wonder if the camera was attached to the outside.