Way cheaper than double trackng the nation, and would help immensely.
Way cheaper than double trackng the nation, and would help immensely.
US-70 just to the east of Greensboro, NC does this with automobile traffic with a few alternating middle lanes for passing. Most of US-70 is 4 lane in NC but this is an old rement that sits between Greensboro and Burlington and two or three sections have this 3-lane configuration. Saves some money and allows for passing safely.Triple Track is more practical because you can run your slow trains over on the outer most tracks and run your faster ones around on the center track. Not just letting someone run on the third main the whole way persay just long enough to get ahead of the traffic ahead and then let someone opposing do the same thing.
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The New York Central used to have four tracks on their entire mainline. The outer two were freight only while the inner two were passenger only. That way passenger trains had no trouble overtaking freight trains, and when the 20th Century Limited needed to overtake somebody they could just move the train ahead to the standard freight track.
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It’s a great idea and it has happened in several areas where there is funding.
Of course even after North Carolina spent a crazy amount of money on 3rd main / extra sidings Amtrak trains still had poor timekeeping in that area.
And look at what the UP did to Illinois on the “high speed segment.”
I think the best investment is to actually buy the rails when possible (Michigan and Virginia being the most recent examples).
The problem is in transportation everything is always in flux and in change. Which means todays congestion spot might move tomorrow, and move again the day after. And double track isn't quite as fluid as people would think. Amtrak trains are a disrupting train because they move faster than everything else around them and can easily catch up to slower traffic.
And even on double track it can be tough to run them around for an overtake because you have opposing traffic coming your way. Now when I dispatch those territories on train dispatcher 3.5 I will stop my opposing freight trains to let Amtrak or VIA shuffle around the slower freight trains. But what do you do when that opposing train is also a passenger train?
The CN Kingston Sub is really rather difficult as you'll get two or three VIA trains meeting on double track and almost always one or two of them have a slow drag freight ahead of them. Try keeping all the trains moving and tell me double track is the solution.
The New York Central used to have four tracks on their entire mainline. The outer two were freight only while the inner two were passenger only. That way passenger trains had no trouble overtaking freight trains, and when the 20th Century Limited needed to overtake somebody they could just move the train ahead to the standard freight track.
Triple Track is more practical because you can run your slow trains over on the outer most tracks and run your faster ones around on the center track. Not just letting someone run on the third main the whole way persay just long enough to get ahead of the traffic ahead and then let someone opposing do the same thing.
Where did NC build a third main, which I am reading as three tracks? I know they did some double tracking between Greensboro and High Point and they extended the length of the siding near my house between CP McLeansville and Superior but a third track is news to me.It’s a great idea and it has happened in several areas where there is funding.
Of course even after North Carolina spent a crazy amount of money on 3rd main / extra sidings Amtrak trains still had poor timekeeping in that area.
And look at what the UP did to Illinois on the “high speed segment.”
I think the best investment is to actually buy the rails when possible (Michigan and Virginia being the most recent examples).
Besides the NYC multi track line between Buffalo and Cleveland, there was also the parallel Nickel Plate...now all are NS.I knew that the 4 tracks all the way was an enduring railfan myth, but did not know the details outside NY state. Thanks for filling in that gap in my knowledge.
West of Berea is NS now right?
Way cheaper than double trackng the nation, and would help immensely.
Where did NC build a third main, which I am reading as three tracks? I know they did some double tracking between Greensboro and High Point and they extended the length of the siding near my house between CP McLeansville and Superior but a third track is news to me.
Monorail in various incarnations has been around about as long as railroads of any kind and has proven impractical in anything beyond amusement parks every time.
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