Did I imagine that the restriction was to be lifted? Is it waiting on a resignalling? I don't imagine that the single-section/junction combination is popular with timetable planners.
Sorry, I forgot to say thanks for the info. Can I read into that that the bridge was in worse condition than expected?
Absolutely not. However as some weight restrictions remain (as I mentioned above) the risk of running two ‘overweight’ trains past each other in the high spans was too great to bear since the intended solution would have relied entirely on the signaller at Dundee SC manually checking every train’s formation rather than using engineering controls.
The TPR says “Owing to weight restrictions on the Tay Bridge, the High Girders section of the bridge must be treated as a single line. An Up train must be planned to pass Dundee Central Junction a maximum of two minutes before a Down train passes Dundee Central Junction.” There’s no additional junction margin imposed for timing Up or Down trains at Tay Bridge South.
As I have posted three times in this thread, the restriction is on trains passing in the High Spans only.
Ah, okay. I was under the impression that an output of the work was to remove the weight restriction entirely (or certainly to raise it significantly).
