Tom Limoncelli has on his blog Everything Sysadmin a interesting post about the fascinating The Zipper Machine at work on the Appan Zee bridge which crosses the Hudson River in New York City.
The morning traffic is mostly westbound and the afternoon traffic is mostly eastbound. Rather than expanding the bridge they now use “the zipper machine” to move the boundary between the two sides. [...] Every time I see this machine I think it makes a great analogy for IT projects. The more audacious an IT project is, the more crazy it looks. After it is complete and people are benefitting from it everyone thinks it is obvious.
Now is it so obvious? Would I be correct in thinking that it perhaps would only take two steps to find a more agile solution to the problem:
1) Build two lines of permanent barriers.
2) Move no-entry signs from one end of the bridge to the other twice a day?
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