Here is the lowdown on the "terminal areas" at Chicago and St. Louis. Whomever above posted that they are inherently slow because of switching, traffic, etc. is a bit off base.
On the pertinent portion of the CN/IC line in Chicago, there are SIX diamond crossings to deal with, NONE of which are controlled by CN/IC. From east to west: 16th St (Metra), 21st St (Amtrak), Brighton Park (NS), Corwith (BNSF), Lemoyne (BRC), and Argo (IHB).
Of course the Amtrak CHI-STL trains do not actually traverse the diamonds at the first two locations, but they ARE impacted on a larger scale, due to the freight traffic which shares the line. CN trains must not proceed past 16th St or 21st St, until it is known that they will be lined up at BOTH locations. This is so as to avoid blocking either one of those two busy north-south routes. Once lined up, it is a 10mph crawl through that entire area. A great degree of cooperation is required between the CN dispatcher, the Amtrak train director, and the Metra operator at 16th St. There are simply times when one (or more) of these three parties can not play ball, and so they all throw up their arms and say "f*** it". The end result is that CN freights are stopped on both main tracks, and Amtrak is unable to even GET onto the CN (at CP "Cermak", just west of 21st St) as a result.
As for the other four foreign RR crossings that Amtrak directly deals with: the CN dispatcher is again tasked with notifying all four of those respective operators/dispatchers when to expect each passenger train's arrival. Some of the dispatchers simply don't, and leave the trains to "self dispatch" themselves. i.e.: tone up each foreign operator, ask for a light, hope they don't already have anything else lined up on their own rail. Or, the CN DS might do his due diligence, and call up those four guys, and they might all say "OK, sure", only to promptly forget (or not care). All four of these foreign lines are pretty busy, themselves, and even in spite of the highest degree of coordination, there is still bound to be a conflicting movement. In this territory, there are no hard and fast rules prescribing who goes first. So one's best bet is to simply try to establish a good rapport with all of the various characters involved....
Once one gets past the quagmire of at-grade crossings, it is actually a fairly modern railroad: two main tracks, CTC, 79 mph, 40 mph universal crossovers at five locations. Freight traffic is not particularly heavy west of Glenn Yard. There is no point in trying to improve track speed on the CN line, until all of the diamond crossings are gone. The folks at IDOT and CREATE are both aware of this, but constructing flyovers would be a VERY expensive concern, just because of the way the land is laid.
Joliet - itself - is a big, slow, antiquated mess, and this is 100% due to disinvestment and disinterest. There is no reason why speeds should be so slow through there. The Santa Fe hammers right on through at a good clip. Meanwhile, Amtrak trundles through at 20mph or less (10 mph thru all crossovers, on the Rock Island diamond, and on the puzzle switch which no longer even connects to the Santa Fe). Oh, and it's all yard limits, for absolutely no reason, other than laziness, and poor signaling. Additionally, if a BNSF train happens to be approaching from either direction, the tower operator usually lets it go, and holds Amtrak out until it clears (because the passenger crosswalks go across the Santa Fe).
Right, so, onto the St. Louis terminal area...
The beginning of double track, and also the end of CTC, is at Wann, just a few miles from Alton. From Wann to WR Tower is joint UP/KCS track, dispatched by KCS. No CTC, just track warrants and automatic blocks. Main 1 is signaled southbound only. It IS 79 mph, but with many caveats:
- turnout at Wann is 15 mph - no reason for this other than disinvestment/disinterest
- crossings at Wood River are 25/40 - same reason as above
- speeds thru Lenox interlocking are 10/30 - same reason as above
- speed on main 2 between Lenox and WR (eight miles, if I recall) is 30. Main 1 is 79. Huh? Well, IDOT paid to improve one track, but not the other. Again: disinvestment/disinterest. All northbound trains usually go main 2, because again, main 1 is only signaled in one direction.
Once you get past WR, the ACTUAL "terminal" slow-speed stuff starts to kick in a bit. (Although the UP route between WR and Q Tower is 60mph.) But the railroad between Wann and WR is a sad state of affairs, and it's disappointing to see it written off as hopelessly slow terminal railroad, because it's a fairly long stretch of track, and it would not be that difficult to improve it. Good luck getting KCS to play ball, though: they don't care.
If you have to take the TRRA "High Line" in/out of STL, instead of the "fast" UP Route via Q Tower and McArthur Bridge - well, you're just boned. It's all 20-30 mph, and will never be improved, because again the TRRA doesn't care. Amtrak usually only goes the high line when it has to, i.e., the fast way is otherwise tied up.
In summary: Chicago terminal area needs major improvements (grade separations); St Louis terminal area needs just marginal improvements (better track & signals). In ten years, not much has been done, because no one can ever agree to anything, especially financing. Carry on...
hey there guy