Please login or join to subscribe to this thread
Not necessarily a project that you have managed!
Not entirely an answer to your question, but here in Ottawa we have the light rail project that is severely behind schedule and over budget. There was no "direct" impact to other aspects of the transit system as far as shut-downs, but there were re-routing of existing bus traffic I believe in the downtown core due to the underground tunnelling activities. They did however shut down, or restrict several core streets in the downtown core for 4-5 years! This has had a major impact on traffic flow and the ability of people to get in and out of certain areas of the downtown district. What is even more amazing is that I can recall the mayor distinctly stating that there would be NO traffic disruptions due the construction work. Lol. Should be open any day now - that is what they have been saying for the last 1.5 yrs, but we are finally close to seeing the light at the end of the tunnel so to speak. Older article...
Specifically related to changing an "old" system to a "new" one... It's not necessary to have a lengthy shutdown if the control system is being replaced, and in fact no transit system would tolerate it. Exhaustive testing can be done in stages during non-revenue hours (say 1-4 AM). The new system is patched in, some tests are run, the new system is cut out, the old system takes over again. This might be done for many consecutive days until all necessary tests have been completed, and the new system can be put in to operation permanently.
If construction work is necessary, there may be no other choice but to remove a station from service for days or weeks. It may not be possible to perform construction work in stages when working around revenue hours. But most transit systems will use shuttle buses to accommodate riders who would have used the closed station. For example, if a line has stations A-B-C-D-E... and Station C is out of service, you can ride train to station B, take free shuttle bus to Station D, then reboard train to destination, and the same idea in the opposite direction. A shuttle bus gets people around the closed station.
Like most major construction, the communication team state that no disruption will be done. That is a classic.
If I not mistaken in Ottawa it is some addition to the existing system.
Thanks for your input.
That is what I have seen. When some repair needs to be done some alternative is proposed. Like your example shuttle to previous or next stations.
For the rail system, it may require to replace rail between stations. That would force traffic on one side slowing down traffic, for a few weeks, then switching side for a similar time.
I have seen similar things here.
Please login or join to reply