Trains.com

Yellow (!) "Advance Warning" Road Grade Crossing Flashing Signal

12347 views
32 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    October 2006
  • From: Allentown, PA
  • 9,810 posts
Posted by Paul_D_North_Jr on Friday, March 21, 2014 9:27 PM

Thanks for sharing that one, zug.  Perhaps surprisingly for as old as it is (almost certainly dates back to Reading Railroad days), it's pretty much still in accordance with the 2007 FHWA Railroad-Highway Grade Crossing Handbook - Fig. 28 - Use of Multiple Flashing Light Signals for Adequate Visibility Horizontal Curve to the Right in subsection 3. -  Supplemental Flashing Light Signals, as linked by Euclid above (though the Figure apparently dates back to 1986): http://safety.fhwa.dot.gov/xings/com_roaduser/07010/sec04b.htm  So the original designers and builders correctly anticipated the modern trend !

From knowing the location and the FRA Grade Crossing Database for it - U.S. DOT ID No. 592-169 H - this signal protects a crossing of the fairly busy and fast (37 freight trains a day plus 7 switching moves, at up to 50 MPH) NS Harrisburg Line (to Reading) 2-track main line at Hummelstown (MP 103.09, N 40.2669750, W 76.7124220), plus a 3rd siding track which is or leads to a connection with the shortline and tourist railroad Middletown & Hummelstown.  This auxiliary flasher does appear to be included in the count of the number of Flashing Light ("FL") sets (though I'm not sure about the math or just how they arrived at their figures: 3 Mast-Mounted FL, 2 Other FL, 6 Total Number FL Pairs ?).      

The old rails used as a barrier is common enough, too - the practical, thrifty ways of both railroads and the local "Pennsylvania Dutch" - use what you have, make it do, use it up, wear it out.  Again, probably just as effective as modern highway guardrails ("guiderails" in PennDOT parlance), at a fraction of the cost.

- Paul North.   

"This Fascinating Railroad Business" (title of 1943 book by Robert Selph Henry of the AAR)
  • Member since
    May 2003
  • From: US
  • 25,292 posts
Posted by BaltACD on Saturday, March 22, 2014 4:51 AM

zugmann

I always thought that this was neat when I first saw it many years ago as a kid. The set of flashers with no sign around the bend.   Simple, but seemed effective, I guess. Have to love the protective barriers created out of old rails.

http://goo.gl/maps/TXNzJ

Telephone pole does a nice job of obscuring the right hand signal as it moves across your field of vision while moving.

Never too old to have a happy childhood!

              

  • Member since
    December 2001
  • From: Northern New York
  • 25,023 posts
Posted by tree68 on Saturday, March 22, 2014 8:47 AM

There are several crossings on the MA&N line we use that have "extra" flashers due to visibility issues and/or road configurations near the crossings.  

LarryWhistling
Resident Microferroequinologist (at least at my house) 
Everyone goes home; Safety begins with you
My Opinion. Standard Disclaimers Apply. No Expiration Date
Come ride the rails with me!
There's one thing about humility - the moment you think you've got it, you've lost it...

Join our Community!

Our community is FREE to join. To participate you must either login or register for an account.

Search the Community

Newsletter Sign-Up

By signing up you may also receive occasional reader surveys and special offers from Trains magazine.Please view our privacy policy