BurlOak
Senior Member
Here is another thought to reduce the SRT closure time.
This requires demolision of the track and Midland and STC stations, and then construction of track only (no stations), during the shutdown.
Staging
- SRT remains in operation
- Track Protection just East of existing tracks
- Construct East portion of tunnel for Radius=250m curve (just south of existing tunnel)
- Build East Track (Track 4) for GO service.
- Build East Platform.
- Build Centre portion of tunnel.
- Build Track 3 (2nd from East), also for GO service.
- Close SRT East of STC Station (may require cross-over tracks just West of STC station).
- Construct new STC Station immediately East of existing station (SRT still in operation to STC).
- Open NB and SB GO service at East Platform.
- Close SRT
- institute shuttle service from STC to Ellesmere.
- Complete western part of tunnel.
- Construct Tracks 1 and 2 (West), including Retaining wall separating Tracks 1 and 2
- Construction West Platform(s).
- Demolish remaining SRT.
- Reconstruct SRT elevated portion until new STC Station.
- (Not on Critical Path – Construct Track and Stations to Malvern).
- Open full service.
- SRT Closure time = 1 years (maybe less).
- Optional (construct new Brimley Road Station) as an infill station (maybe depends how far East the STC station moved).
This requires demolision of the track and Midland and STC stations, and then construction of track only (no stations), during the shutdown.