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 Post subject: String lining operations program?
PostPosted: Tue Aug 01, 2017 5:42 am 

Joined: Tue Sep 03, 2013 9:50 am
Posts: 69
I'm working on some articles based on dispatchers sheets. It would be much easier for the reader to follow the plot if they could have a visual of the train movements. Is there a computer program out there a senior could use to create such charts?


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 Post subject: Re: String lining operations program?
PostPosted: Tue Aug 01, 2017 10:31 am 

Joined: Fri Aug 27, 2004 4:02 pm
Posts: 966
Location: Back in NE Ohio
When you said "string lining" I thought you were referring to the phenomena that happens to a train when it has too much tonnage on the rear for very light cars (like intermodal) up front going into a sharp curve. Placement-in-train rules are in-part written from the real world experience of doing things like that. That happened in Fostoria, OH earlier this year on the connection from the C&O line to Columbus to the B&O Chicago main towards Willard, right after Harrison took over and started implementing massively long trains. It also happened about 40 years ago in Akron, which, I'm guessing, might have led to the original rule about trailing tonnage behind intermodal cars.


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 Post subject: Re: String lining operations program?
PostPosted: Tue Aug 01, 2017 6:31 pm 

Joined: Thu Apr 14, 2005 9:34 pm
Posts: 1864
Location: Copenhagen, Denmark
You can draw stringlines in Excel using the xy scatterplot chart type. You need your data in columns of distance and time. We do it all the time.

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 Post subject: Re: String lining operations program?
PostPosted: Wed Aug 02, 2017 8:04 am 

Joined: Tue Sep 22, 2015 12:36 pm
Posts: 173
PaulWWoodring wrote:
When you said "string lining" I thought you were referring to the phenomena that happens to a train when it has too much tonnage on the rear for very light cars (like intermodal) up front going into a sharp curve. Placement-in-train rules are in-part written from the real world experience of doing things like that. That happened in Fostoria, OH earlier this year on the connection from the C&O line to Columbus to the B&O Chicago main towards Willard, right after Harrison took over and started implementing massively long trains. It also happened about 40 years ago in Akron, which, I'm guessing, might have led to the original rule about trailing tonnage behind intermodal cars.



They had one on the NE transfer about 10-15 years ago as well. That time it was autoracks.

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