hold-on@s... wrote:
>
> To the List
> To add to what Karl has already written. My signal file is about an
> inch thick. Ed is working on a signal piece for the Bulletin. When it
> will be finished is a good question. As Both Ed and I have been
> reseaching for a couple years. If you ran a copy of the accident file
> for Western Springs you got a good idea of the first signaling on the
> East End(Aurora to Chicago)Manual Block with green semphore blades
> Installed in 1889. This was then made Auto Matic just after this
> accident in 1914. Some Automatic Train Stop was also installed starting
> in 1908. Most Signaling has been the result of government mandates as
> well. In 1912 112 miles of Absolute Permissive Block was installed
> Akron to Denver to finish the APB between Chicago to Denver started in
> 1907. This was a GRS Lock and Block System. Most at the time was lower
> quad Semophore. The Bridges the Q used were published in "The Signal
> Engineer" Oct 1912. "Railway Signal Engineer" Aug 1923 talks about two
> and three light color light signals installed between Hannibal and
> Louisiana and again using APB. By 1925 remote installations were being
> put in service Earlville, Mendota, Crawford(Wisc)Illinois Jct(East of
> Miss River Bridge). In 1926 East End changed from Lower Quad to
> Triangular Light Signals. Semaphores sent to Shop are rebuilt for use
> on the Ottumwa Div. The Q was the first RR to use the APB system of
> operations. The Remote Installations lead to CTC. I can not find when
> the Triangle lights were replaced on the East End. A lot of the new
> installations are the HOODed style UP uses. Redo of Cicero to Union
> Ave. and the Bidirectional signals going in on the Ottumwa Div. The
> neat thing is that once the Q signaled an area it did away with running
> orders. Now Track Warrents have all but superseded the Signals. You
> have to have a warrent to occupy the track in automatic current of
> traffic (old Rule 251 territory)
> Steve Holding
> 2nd trick Union Ave Dispatcher
>
Steve:
If they are going to go with bi-directional ABS on the Ottumwa Div.
will they switch over to the "Track Permit" system as it is used
on Seligman West?
Russ
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