!!

Not Registered?

Welcome!  Please register to view all of the new posts and forum boards - some of which are hidden to guests.  After registering and gaining 10 posts you will be able to sell and buy items on our N'porium.

If you have any problems registering, then please check your spam filter before emailing us.  Hotmail users seem to find their emails in the Junk folder.


Thanks for reading,
The NGF Staff.

Author Topic: Autumn Time - Leafs on the Line  (Read 826 times)

0 Members and 1 Guest are viewing this topic.

Offline Jack

  • Trade Count: (+1)
  • Full Member
  • ***
  • Posts: 1745
  • Country: gb
  • Gender: Male
    • Awards
Autumn Time - Leafs on the Line
« on: December 08, 2013, 04:25:29 PM »
They say every day is a learning day, well I’ve just learnt why leafs on the track are such a problem.

I've just watched “Keeping Britain Safe 24/7” on BBC iPlayer. It about the various services that help to keep us safe and the first story was about why leafs on the line are sooo dangerous. The program liked it to the train drivers’ version of black ice!

On a very small scale DCC users will understand the problem with dirty tracks and signals not getting through to the loco.

On the real thing it means ‘losing’ a train because it’s through the rails that the system signals know where a train is at any given time. Leaf build up compacted by the trains going over them forms an isolation barrier to the train from the rails thereby signalmen and automatic signals, not knowing where the train is, for safety, turn signals to red in the area until they find the “lost” train.

In the old days before electronic signalling it wasn't such a problem, it just increased stopping distances for trains.

The next time I hear about train delays due to leafs on the line, I for one won’t be complaining about the use of a “poor excuse”!
Today's Experts were yesterday's Beginners :)

Offline EtchedPixels

  • Advertiser
  • Trade Count: (+44)
  • Full Member
  • ***
  • N Gauge Society Number: 16353
  • 2mm Association Number: 4412
  • Posts: 8385
  • Country: wales
  • Gender: Male
    • Ebay
    • Google+
    • Twitter
    • YouTube
    • Etched Pixels
    • Awards
Re: Autumn Time - Leafs on the Line
« Reply #1 on: December 08, 2013, 04:30:20 PM »
A big part of the problem is the switch to disc braking. Historically the railways did two things to avoid the problem

- they cut back trees and bushes aggressively anyway near the line on their land.

- they had clasp brakes

It turns out that clasp brakes have the accidental advantage of tending to rip compacted leaves off the wheels which reduces the problem a lot.


It would be difficult to go back to the same level of vegetation clearance even though it would reduce accidents through leaves on lines and fallen trees, as well as reduce vandalism and littering because the NIMBYs now demand that the can't see the nasty horrid trains from the designer converted barns  :veryangry:

"Knowledge has no value or use for the solitary owner: to be enjoyed it must be communicated" -- Charles Pratt, 1st Earl Camden

Offline Newportnobby

  • Global Moderator
  • Trade Count: (+98)
  • Full Member
  • *****
  • N Gauge Society Number: 21962
  • Posts: 34516
  • Country: england
  • Gender: Male
    • Awards
Re: Autumn Time - Leafs on the Line
« Reply #2 on: December 08, 2013, 06:24:42 PM »
Saw the same programme, Jack.
Even taking away Julia Bradbury, it was still quite interesting :D

ParkeNd

  • Guest
  • Trade Count: (0)
Re: Autumn Time - Leafs on the Line
« Reply #3 on: December 08, 2013, 06:27:21 PM »
Saw the same programme, Jack.
Even taking away Julia Bradbury, it was still quite interesting :D

If you are going to take Julia Bradbury anywhere bring her up here.   :)

Offline Jack

  • Trade Count: (+1)
  • Full Member
  • ***
  • Posts: 1745
  • Country: gb
  • Gender: Male
    • Awards
Re: Autumn Time - Leafs on the Line
« Reply #4 on: December 08, 2013, 06:32:28 PM »
Saw the same programme, Jack.
Even taking away Julia Bradbury, it was still quite interesting :D

Wait 'til Liz Hurley finds out you've found other interests Mick.  :laugh:
Today's Experts were yesterday's Beginners :)

Offline Newportnobby

  • Global Moderator
  • Trade Count: (+98)
  • Full Member
  • *****
  • N Gauge Society Number: 21962
  • Posts: 34516
  • Country: england
  • Gender: Male
    • Awards
Re: Autumn Time - Leafs on the Line
« Reply #5 on: December 08, 2013, 06:47:37 PM »
Sorry Jack (and Liz).
Along with being a forum pimp I must be a tart, too :-[

 

Please Support Us!
June Goal: £100.00
Due Date: Jun 30
Total Receipts: £52.00
Below Goal: £48.00
Site Currency: GBP
52% 
June Donations

SimplePortal 2.3.5 © 2008-2012, SimplePortal