Tri-State Tom wrote:
Looking ahead, sans any new crossovers just west of the station, I'm trying to figure out how an eastbound Montclair-Boonton train would be routed over to station track #3 under Rule 261.
The M-B line is set-up for 261 between Roseville and 'CLOVE' ( the crossovers just east of the new Montclair State U. park & ride complex ). There is a new set of crossovers on that line just west of Roseville ( can't recall the designation ) where a normal running eastbound train on track #2 can be routed over to track #1. As things stand today, it would proceed to join the Morristown line's main track #3 at Roseville and run all the way into the station.
This seems operationally inefficient as such a move would block track #3 for quite a distance between Roseville and Newark-Broad preventing any westbound moves on either the Morristown or M-B lines.
And if Rule 261 only is in effect as far west as Roseville, how would an eastbound train on the Morristown line access track #3 ?
Anyone have a comment ?
Tom:
Disclaimer: I am not an expert on this stuff, so others who are feel free to correct me.
Initially in the Broad Street station project, track 3 will be out of service. After the new track 3 is in place, and a platform in place, track 1 and track 2 will be out of service (Not at the same time - and I don't know in which order, but I'm guessing 1 first, then 2) to allow full completion of the center island platform, and then construction of the side high level platform on the south side of track 2. So I think the need and value for Rule 261 on these tracks comes into play over the life of the project, not necessarily day 1.
During the time period when just two tracks are available for use, if one should become blocked, having Rule 261 on the "other" track would allow many operations to continue without needing Form D's, etc. We see this often between Millburn & Summit and also at times between Denville & Dover.
Ampere is the interlocking just beyond Roseville Ave on the Montclair Line.
Green is the interlocking just west of Roseville Ave on the Morristown Line. The set up here would allow an eastbound M&E train operating on Track 1 to cross over to track 3. I'll let the operating types speak to the "Rule 261" issue here; it would seem to me that Green and Roseville are adjacent interlockings with no intermediate signals.