Re:Why New York City Stopped Building Subways (2018)
by tialaramex on Monday October 07, 2019 @07:09AM
(#21179469)
This style of working (where working lines are in physical proximity to workers) was called "Red zone" (where "Green zone" would be if the workers are not in proximity to a working line because the line was closed to traffic) and now is called "Open line" working.
It is unavoidably dangerous, and planners are supposed to choose it only when other options aren't practical, but in reality they often pick "Open line" for convenience. For example maybe the workers would prefer to do this on Tuesday midday, so we plan it as "Open line" and schedule it for Tuesday 1145, rather than for 0400 on Thursday when we can just shut the line to do it safely. This gets people killed, but because it doesn't reliably kill the specific people you scheduled most of the time it feels OK to them and to you.
This is also why unions aren't enough to implement safety. Unions represent workers and the workers feel like convenience is more valuable than safety. A 1-in-1000 chance to die, for five minutes extra coffee break is a good deal, until you're the 1-in-1000 and then it sucks. In the UK signaller unions fought very hard to continue working 12 hour shifts instead of maximum 8 hours. Because working 3x 12 hour shifts and then the rest of the week off is _convenient_ even though it was excessively dangerous if anything goes wrong.
It is unavoidably dangerous, and planners are supposed to choose it only when other options aren't practical, but in reality they often pick "Open line" for convenience. For example maybe the workers would prefer to do this on Tuesday midday, so we plan it as "Open line" and schedule it for Tuesday 1145, rather than for 0400 on Thursday when we can just shut the line to do it safely. This gets people killed, but because it doesn't reliably kill the specific people you scheduled most of the time it feels OK to them and to you.
This is also why unions aren't enough to implement safety. Unions represent workers and the workers feel like convenience is more valuable than safety. A 1-in-1000 chance to die, for five minutes extra coffee break is a good deal, until you're the 1-in-1000 and then it sucks. In the UK signaller unions fought very hard to continue working 12 hour shifts instead of maximum 8 hours. Because working 3x 12 hour shifts and then the rest of the week off is _convenient_ even though it was excessively dangerous if anything goes wrong.