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Ditch Lights

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Ray - 12 Jun 2004 15:03 GMT
Hi all,
I'm new to US models (I live in the UK) & I know this is probably a daft
question, but what are ditchlights?
Cheers,
Ray
Vince Guarna - 12 Jun 2004 15:47 GMT
"Ray" <photoloc@blueyonder.co.uk> wrote in news:C2Eyc.87243$wd7.17771
@front-1.news.blueyonder.co.uk:

> Hi all,
> I'm new to US models (I live in the UK) & I know this is probably a daft
> question, but what are ditchlights?
> Cheers,
> Ray

A pair lights, one left, one right, usually low on the front of the engine
to illimuniate the "ditches" on either side of the roadbed (and further
increase visibility). For a cute little animated example, see:

http://www.trains.com/community/forum/topic.asp?page=-1&TOPIC_ID=16369
&REPLY_ID=142596
Gregory Procter - 12 Jun 2004 21:34 GMT
> "Ray" <photoloc@blueyonder.co.uk> wrote in news:C2Eyc.87243$wd7.17771
> @front-1.news.blueyonder.co.uk:
[quoted text clipped - 11 lines]
> http://www.trains.com/community/forum/topic.asp?page=-1&TOPIC_ID=16369
> &REPLY_ID=142596

Ok, now a follow-up question:
Why does the driver need to see what is in the ditches?
Surely the train follows the rails, and anything spotted in the ditches is too
close for the driver to have time to avoid anyway?

Regards,
Greg.P.
Mark Newton - 12 Jun 2004 21:47 GMT
>> A pair lights, one left, one right, usually low on the front of the
>> engine to illimuniate the "ditches" on either side of the roadbed
>> (and further increase visibility). For a cute little animated
>> example, see:

> Ok, now a follow-up question: Why does the driver need to see what is
> in the ditches? Surely the train follows the rails, and anything
> spotted in the ditches is too close for the driver to have time to
> avoid anyway?

I think that the intention is to increase the visibility <OF> the train
to those at trackside, and particularly to motorists on level crossings.

At least, that was the rationale given for fitting them to locos and MU
stock her in NSW.
Gregory Procter - 13 Jun 2004 04:39 GMT
>  >> A pair lights, one left, one right, usually low on the front of the
>  >> engine to illimuniate the "ditches" on either side of the roadbed
[quoted text clipped - 11 lines]
> At least, that was the rationale given for fitting them to locos and MU
> stock her in NSW.

Yes, that makes some sense!
Roger T. - 12 Jun 2004 16:57 GMT
> Hi all,
> I'm new to US models (I live in the UK) & I know this is probably a daft
> question, but what are ditchlights?

First used in Canada, and then copied by the States.

--
Cheers
Roger T.

Home of the Great Eastern Railway
http://www.highspeedplus.com/~rogertra/
Ray - 12 Jun 2004 20:44 GMT
Thanks for the replies,
Cheers,
Ray

> > Hi all,
> > I'm new to US models (I live in the UK) & I know this is probably a daft
[quoted text clipped - 8 lines]
> Home of the Great Eastern Railway
> http://www.highspeedplus.com/~rogertra/
Ray L. Nutz - 12 Jun 2004 21:59 GMT
> First used in Canada, and then copied by the States.

Not copied, despite being called ditchlights in USA by railfans and some
railroaders the lights in USA are Auxiliary headlight, and are aimed
differed than ditch lights.
A true ditch light the left light shines cross eyed in right ditch and
right light shines in left ditch see :
http://www.railpictures.net/viewphoto.php?id=63014
on trains in USA the lights shine straight ahead with a spread of about 15
degrees max.
see: http://www.railpictures.net/viewphoto.php?id=65082
for rules:

                       TITLE 49--TRANSPORTATION

      CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF
                            TRANSPORTATION

PART 229--RAILROAD LOCOMOTIVE SAFETY STANDARDS--Table of Contents

                    Subpart C--Safety Requirements

Sec. 229.125  Headlights and auxiliary lights.

   (a) Each lead locomotive used in road service shall have a headlight
that produces at least 200,000 candela. If a locomotive or locomotive
consist in road service is regularly required to run backward for any
portion of its trip other than to pick up a detached portion of its
train or to make terminal movements, it shall also have on its rear a
headlight that produces at least 200,000 candela. Each headlight shall
be arranged to illuminate a person at least 800 feet ahead and in front
of the headlight.
   (b) Each locomotive or locomotive consist used in yard service shall
have two headlights, one located on the front of the locomotive or
locomotive consist and one on its rear. Each headlight shall produce at
least 60,000 candela and shall be arranged to illuminate a person at
least 300 feet ahead and in front of the headlight.
   (c) Headlights shall be provided with a device to dim the light.
   (d) Effective December 31, 1997, each lead locomotive operated at a
speed greater than 20 miles per hour over one or more public highway-
rail crossings shall be equipped with operative auxiliary lights, in
addition to the headlight required by paragraph (a) or (b) of this
section. A locomotive equipped on March 6, 1996 with auxiliary lights in
conformance with Sec. 229.133 shall be deemed to conform to this section
until March 6, 2000. All locomotives in compliance with Sec. 229.133(c)
shall be deemed

[[Page 307]]

to conform to this section. Auxiliary lights shall be composed as
follows:
   (1) Two white auxiliary lights shall be placed at the front of the
locomotive to form a triangle with the headlight.
   (i) The auxiliary lights shall be at least 36 inches above the top
of the rail, except on MU locomotives and control cab locomotives where
such placement would compromise the integrity of the car body or be
otherwise impractical. Auxiliary lights on such MU locomotives and
control cab locomotives shall be at least 24 inches above the top of the
rail.
   (ii) The auxiliary lights shall be spaced at least 36 inches apart
if the vertical distance from the headlight to the horizontal axis of
the auxiliary lights is 60 inches or more.
   (iii) The auxiliary lights shall be spaced at least 60 inches apart
if the vertical distance from the headlight to the horizontal axis of
the auxiliary lights is less than 60 inches.
   (2) Each auxiliary light shall produce at least 200,000 candela.
   (3) The auxiliary lights shall be focused horizontally within 15
degrees of the longitudinal centerline of the locomotive.
   (e) Auxiliary lights required by paragraph (d) of this section may
be arranged
   (1) to burn steadily or
   (2) flash on approach to a crossing.
   If the auxiliary lights are arranged to flash;
   (i) they shall flash alternately at a rate of at least 40 flashes
per minute and at most 180 flashes per minute,
   (ii) the railroad's operating rules shall set a standard procedure
for use of flashing lights at public highway-rail grade crossings, and
   (iii) the flashing feature may be activated automatically, but shall
be capable of manual activation and deactivation by the locomotive
engineer.
   (f) Auxiliary lights required by paragraph (d) of this section shall
be continuously illuminated immediately prior to and during movement of
the locomotive, except as provided by railroad operating rules,
timetable or special instructions, unless such exception is disapproved
by FRA. A railroad may except use of auxiliary lights at a specific
public highway-rail grade crossing by designating that exception in the
railroad's operating rules, timetable, or a special order. Any exception
from use of auxiliary lights at a specific public grade crossing can be
disapproved for a stated cause by FRA's Associate Administrator for
Safety or any one of FRA's Regional Administrators, after investigation
by FRA and opportunity for response from the railroad.
   (g) Movement of locomotives with defective auxiliary lights.
   (1) A lead locomotive with only one failed auxiliary light must be
repaired or switched to a trailing position before departure from the
place where an initial terminal inspection is required for that train.
   (2) A locomotive with only one auxiliary light that has failed after
departure from an initial terminal, must be repaired not later than the
next calendar inspection required by Sec. 229.21.
   (3) A lead locomotive with two failed auxiliary lights may only
proceed to the next place where repairs can be made. This movement must
be consistent with Sec. 229.9.
   (h) Any locomotive subject to Part 229, that was built before
December 31, 1948, and that is not used regularly in commuter or
intercity passenger service, shall be considered historic equipment and
excepted from the requirements of paragraphs (d) through (h) of this
section.

[45 FR 21109, Mar. 31, 1980, as amended at 61 FR 8887, Mar. 6, 1996]
Beowulf - 13 Jun 2004 20:44 GMT
Salvè

> > First used in Canada, and then copied by the States.
> >
[quoted text clipped - 8 lines]
>  see: http://www.railpictures.net/viewphoto.php?id=65082
>  for rules:
rather interesting, but it does beg the question that if someone cant see
a75 tonne plus locomotive with  ordinairy headlights how is the addition of
a "ditch light"  going to make any difference to their blindness?  British
loco's have no headlights worth the name Swedish have rather high power ones
but even in Sweden with its thousands of unguarded crossings collissions are
rare so what are the real benefits of these ,apparently, silly lights?
Beowulf
Mark Mathu - 13 Jun 2004 20:56 GMT
> so what are the real benefits of these ,apparently, silly lights?

Avoiding dusk and nighttime collisions.
Will@Credit.Valley.Railway - 14 Jun 2004 11:14 GMT
> > so what are the real benefits of these ,apparently, silly lights?
>
> Avoiding dusk and nighttime collisions.

As if a train could stop to avoid anything in the lights....

Signature

Will
N Scale - Credit Valley Railway
www.muskokacomputes.com/CVR_Home.htm

Roy Wilke - 14 Jun 2004 12:28 GMT
> > > so what are the real benefits of these ,apparently, silly lights?
> >
> > Avoiding dusk and nighttime collisions.
>
> As if a train could stop to avoid anything in the lights....

Or swerve, for that matter...
Drew Bunn - 14 Jun 2004 15:49 GMT
> > As if a train could stop to avoid anything in the lights....
>
> Or swerve, for that matter...

If you're ugly enough, I suppose...
Roy Wilke - 14 Jun 2004 17:22 GMT
> > > As if a train could stop to avoid anything in the lights....
> >
> > Or swerve, for that matter...
>
> If you're ugly enough, I suppose...

Well, I suppose you would be after being run over by a train
Captain Handbrake@Atlantic Coast Line.com - 14 Jun 2004 18:48 GMT
>> > > As if a train could stop to avoid anything in the lights....
>> >
[quoted text clipped - 3 lines]
>>
>Well, I suppose you would be after being run over by a train

Headlights on a locomotive are only useful to those whose actions are influenced by
the train. They are of no use to the train crew about 99.99% of the time.
Being able to see what you are about to hit is merely an interesting intellectual
diversion.

I can recall two incidents when I was able to stop the train before hitting something
on the tracks. One was an auto carrier that had become stuck on a grade crossing.
There was a long uphill tangent approaching the crossing. The track department had
recently installed a new turnout about 500 yards from the crossing and had a 35MPH
speed restriction in place for a few days. That speed restriction probably saved the
driver's butt (figuratively) and saved the truck for sure.

The other was about 0200 ( that's 2 AM for the Luddites among us ) when I met an
automobile going south on the same track upon which I was going north < ! > He did
not have even so much as a hint of any kind of lights burning.
I had a pair of Alco RS-3s and a cut of about twenty cars, and was galloping along at
the mind-numbing speed of 40 MPH. I but the air brakes into emergency and got stopped
(barely) before I hit the car. HOWEVER........

The driver of the car did not stop and plowed into us head-on at the breakneck speed
of about 15MPH.  Now, if you don't think that's fast, try driving on the tracks at
any less speed and see what you think. It is a good trick for a beefed-up jeep, but
this guy was driving a plain-Jane Buick (?) sedan.  The car was probably already
trashed before he hit us, it just hadn't come apart yet.
Anyway, he poured himself out of the car and promised to pay for any damages to the
locomotive if we would just not call the police.
HA!  Fat chance o'that!
It was good that no one chose to light a cigarette right then, because the auto
driver had so much alcohol on his breath that the place would surely have looked like
Hiroshima if anyone had.

It took over two hours for a wrecker to extract the auto from the front pilot of the
RS-3 with cables and torches and drag it back to a place where he could get it up
onto the truck. The engine had been ripped from its mounts and had ruptured the fuel
line in the process such that gasoline was all over the place. There was a fire truck
standing by with a full compliment of firemen equipment to extinguish any fire that
might result from the torching operations. Fortunately, all went well and there were
no problems.
The firemen went home, the car went to the scrap yard, the driver became the guest of
the county for a while and we took the engines back to the yard for the car
department to inspect.
Ho-hum........all in a day's work.

Captain Handbrake
Jeff Sc. - 15 Jun 2004 01:47 GMT
>Headlights on a locomotive are only useful to those whose actions are influenced by
>the train. They are of no use to the train crew about 99.99% of the time.
>Being able to see what you are about to hit is merely an interesting intellectual
>diversion.

Gives you a chance to decide whether to duck or bail, depending on the
size and contents of the illuminated object...

Jeff Sc.
Karo Syrup, Ga.

Don't bother to reply via email...I've been JoeJobbed.
Captain Handbrake@Atlantic Coast Line.com - 15 Jun 2004 03:24 GMT
>>Headlights on a locomotive are only useful to those whose actions are influenced by
>>the train. They are of no use to the train crew about 99.99% of the time.
[quoted text clipped - 3 lines]
>Gives you a chance to decide whether to duck or bail, depending on the
>size and contents of the illuminated object...

Once, when I was working as a brakeman on the Piedmont Division we hit a chicken
offal truck at Gainesville. That was really disgusting. No one was hurt, but the mess
was SO beyond description.
The truck driver denied trying to beat the train to the crossing, but when the State
Troopers got there he spilled his guts.
Yeah.

Another time, Jonah here, wheedled a cab ride on the Crescent northbound out of New
Orleans. Sumbitch if we didn't whack a milk truck as we were accelerating out of
Slidell.

I think that all kinds of crap gets hit by trains every day, you just don't hear
about it unless it's a school bus or a van full of Nuns or something like that. I was
never on a job that hit a school bus, but another crew did run over one in Arragon
and kill a bunch of kids while I was bid in on a yard job in Atlanta. One day I was
braking for an engineer we all called "Duck" when we missed a school bus in Jackson
that tried to beat the train to the crossing. This time she made it, but I had to go
out and see if there was any yellow paint on the front of the engine.  One more coat
and we'da hit her fer sher.

Captain Handbrake
Robert Dietz - 15 Jun 2004 15:07 GMT
> >>Headlights on a locomotive are only useful to those whose actions are influenced by
> >>the train. They are of no use to the train crew about 99.99% of the time.
[quoted text clipped - 25 lines]
>
> Captain Handbrake

Last summer I was talking to an engineer on a CSX coal haul in Columbia,
SC. Part of the training now states, "When you hit a vehicle on the
tracks..." do the following... I thought it was interesting that the
wording was "when" not "if".

Bob
Signature

The goal of driving is to miss the maximum possible number of objects.

Daniel A. Mitchell - 15 Jun 2004 19:07 GMT
> > >>Headlights on a locomotive are only useful to those whose actions are influenced by
> > >>the train. They are of no use to the train crew about 99.99% of the time.
[quoted text clipped - 34 lines]
> --
> The goal of driving is to miss the maximum possible number of objects.

I recall an "Operation Lifesaver" presentation that stated that most
career engineers will have several grade crossing accidents in their
working years. As many of these result in fatalities, that's a sobering
thought! It's a substantial psychological problem engineers must face.

Dan Mitchell
==========
Captain Handbrake@Atlantic Coast Line.com - 15 Jun 2004 22:26 GMT
>I recall an "Operation Lifesaver" presentation that stated that most
>career engineers will have several grade crossing accidents in their
[quoted text clipped - 3 lines]
>Dan Mitchell
>==========

It depends.
Some are bothered by it some are not.  
That's just the way people are.

Captain Handbrake
Daniel A. Mitchell - 16 Jun 2004 15:00 GMT
Captain, Handbrake@Atlantic, Coast, Line.com wrote:

> >I recall an "Operation Lifesaver" presentation that stated that most
> >career engineers will have several grade crossing accidents in their
[quoted text clipped - 9 lines]
> >
> Captain Handbrake

They still have to face it. The circumstances of the accidents vary, and
different personalities handle it in different ways.

Dan Mitchell
==========
Mark Mathu - 16 Jun 2004 04:27 GMT
> I recall an "Operation Lifesaver" presentation that stated that most
> career engineers will have several grade crossing accidents in their
> working years.

My wife is an OLI presenter... she says they were never given that fact.
Given the statistics on 37,000 engineers and 3,000 annual grade crossing
accidents, it's likely for 'career' engineers... but do most stay in that job
position for that long of time?  My wife says their training emphasised that
a big problem are pedestrian/trespasser incidents.

> As many of these result in fatalities, that's a sobering
> thought! It's a substantial psychological problem engineers must face.

According to FRA statistics for 2002, there were 356 grade crossing
fatalities in 3,072 grade crossing collisions.

In the same time frame there were 540 pedestrian/trespass fatalities.
Daniel A. Mitchell - 16 Jun 2004 15:29 GMT
> > I recall an "Operation Lifesaver" presentation that stated that most
> > career engineers will have several grade crossing accidents in their
[quoted text clipped - 13 lines]
>
> In the same time frame there were 540 pedestrian/trespass fatalities.

Well, using your figures, about 8% (3/37) of engineers have a grade
crossing accident every year. That is, any average engineer will have
such an accident every 12 years. That is, two or three in lifetime
career. This supports my original statement. 11% of these are
fatalities, so any given engineer, in line of duty,  has about one
chance in four of killing someone in such an accident. How many of the
general population have a job with that great a likelihood?

Surley there are other jobs with similar risks, but it's still a
significant occupational hazard/responsibility.

And also true that there is little the engineer can do about it
(assuming they are not somehow a party to the accident, Rule-G, etc.).
It's not normally their fault, but some have a lot of trouble accepting
that after wiping someone out.

Dan Mitchell
==========
Mark Newton - 14 Jun 2004 21:36 GMT
>>>> As if a train could stop to avoid anything in the lights....
>>>
[quoted text clipped - 3 lines]
>>
> Well, I suppose you would be after being run over by a train

No, they're not ugly, they just look like a carpet bag full of mince.
Drew Bunn - 14 Jun 2004 22:13 GMT
> > If you're ugly enough, I suppose...
> >
> Well, I suppose you would be after being run over by a train

I was refering to the old adage, 'He's so ugly he could make a freightrain
take a dirt road'

Drew
Gregory Procter - 14 Jun 2004 21:00 GMT
> > > so what are the real benefits of these ,apparently, silly lights?
> >
> > Avoiding dusk and nighttime collisions.
>
> As if a train could stop to avoid anything in the lights....

I read a report of an accident somewhere in England - the reporter
claimed the train driver didn't even attempt to swerve to avoid the car
stalled on the crossing! Perhaps if he'd had ditch lights???
Mark Mathu - 16 Jun 2004 04:27 GMT
>>> so what are the real benefits of these ,apparently, silly lights?
>>
>> Avoiding dusk and nighttime collisions.
>
> As if a train could stop to avoid anything in the lights....

Are you serious?
It helps avoid disk and nighttime collisions by making the train more visible
to motorists.
Roger T. - 16 Jun 2004 07:01 GMT
"Mark Mathu"

> >>> so what are the real benefits of these ,apparently, silly lights?
> >>
[quoted text clipped - 5 lines]
> It helps avoid disk and nighttime collisions by making the train more visible
> to motorists.

"Disk"?  Are people now throwing Frisbees (tm) at trains?

--
Cheers
Roger T.

Home of the Great Eastern Railway
http://www.highspeedplus.com/~rogertra/
Mark Mathu - 16 Jun 2004 07:27 GMT
>> It helps avoid disk and nighttime collisions by making the train more
>> visible to motorists.
>
> "Disk"?  Are people now throwing Frisbees (tm) at trains?

Incidents involving unauthorized Frisbees on railroad property are rapidly
spinning out of control.
Steve Caple - 17 Jun 2004 08:38 GMT
> Incidents involving unauthorized Frisbees on railroad property are rapidly
> spinning out of control.

Sounds like hula hoopla to me.

Signature

Steve Caple

Mark Mathu - 18 Jun 2004 08:00 GMT
> > Incidents involving unauthorized Frisbees on railroad property are rapidly
> > spinning out of control.
>
> Sounds like hula hoopla to me.

Don't try to put your own spin on the facts.
Steve Caple - 18 Jun 2004 09:33 GMT
> > > Incidents involving unauthorized Frisbees on railroad property are
> rapidly
[quoted text clipped - 3 lines]
>
> Don't try to put your own spin on the facts.

Ahm not wunna them spinkeisters they're always
talkin' about.

Signature

Steve Caple

Drew Bunn - 17 Jun 2004 01:56 GMT
> > It helps avoid disk and nighttime collisions by making the train more
> visible
> > to motorists.
>
> "Disk"?  Are people now throwing Frisbees (tm) at trains?

It's a phenomenon only among cutting edge railfans. It's when the digital
camera stops working and you throw that little 'disk' at the train, because
you missed the one shot you've been waiting for all day.

Signature

__________________________________________________________________
This email scanned by Norton AntiVirus

"I don't drive fast, I fly low"
Drew Bunn
Ainsley Specialized Transport
bunn_a@hotmail.com

Gregory Procter - 13 Jun 2004 22:11 GMT
> Salvè
> > >
[quoted text clipped - 18 lines]
> rare so what are the real benefits of these ,apparently, silly lights?
> Beowulf

Management feels better about their trains rolling over blind idiots?

Greg.P.
Ray L. Nutz - 13 Jun 2004 22:34 GMT
>  but it does beg the question that if someone cant see
> a75 tonne plus locomotive with  ordinairy headlights how is the addition of
[quoted text clipped - 3 lines]
> rare so what are the real benefits of these ,apparently, silly lights?
> Beowulf

American trains in general only had a single headlight with two bulbs.  in
Europe a triangle formed headlight has been used for years.
With a single headlight it s hard to figure how far a train is from a
crossing. with three lights  one can figure distance a lot better. so two
lights at bottom were added.

Jaap
Mark Newton - 13 Jun 2004 22:48 GMT
> rather interesting, but it does beg the question that if someone cant
>  see a75 tonne plus locomotive with ordinairy headlights how is the
[quoted text clipped - 3 lines]
> unguarded crossings collissions are rare so what are the real
> benefits of these ,apparently, silly lights?

In the case of US locos, and many similar units on railways elswhere,
the headlights are aimed and focused some considerable distance ahead of
the loco. They are mounted either at the top of the short hood/nose, or
on the top of the cab front. So to a motorist only a few feet from the
ground, the normal headlights are not as highly visible as you might at
first think.

But I agree that no amount of lights will overcome the basic problem of
motorists who drive around with their eyes shut, and their brains in
neutral. At least with ditch lights you can see exactly what you're
about to run over, which makes it easier to describe when you contact
the signal box to report the collision.
John H - 14 Jun 2004 06:18 GMT
>  > rather interesting, but it does beg the question that if someone cant
>  >  see a75 tonne plus locomotive with ordinairy headlights how is the
[quoted text clipped - 16 lines]
> about to run over, which makes it easier to describe when you contact
> the signal box to report the collision.

Has the addition of ditch lights increased or decreased the number of deer
and moose hits? In general, lights freeze deer, ala poachers.
John H.
Mark Mathu - 14 Jun 2004 07:20 GMT
> Has the addition of ditch lights increased or decreased the number of deer
> and moose hits?

I don't think there's ever been a statistical study of that data.
B-Dubya - 14 Jun 2004 14:36 GMT
It's a bit simpler in Canada:

>      o
>     o o  
"I am a moving train"

>     o o   (lower lights only)
"I am a moving train with a busted headlight"
or
"I am a moving train whose engineer forgot to turn on the headlight"

>      o
>     o     (diagonal)
"I am a moving train with a ditch light busted"

>      o
>       o
"I am a moving train with the other ditch light busted"

:^)

My understanding is ditch lights came into use in Canada  becuase
curvature in the Rockies keeps the headlight aimed away from the track
ahead more often than not. In any event, they proved useful enough
that they are a de facto standard on Canadian locomotives, but are not
required.

Rule 17.2 of the Canadian Rail Operating Rules does state that if
present, ditch lights must be on, and are to be:

- dimmed or extinguished when the headlight is dimmed or extinguished;
- extinguished between crossings when facing traffic on adjacent
roadways at night;
- extinguished when switching.

They may be used as substitute headlighs, subject in that case to
rules for headlights. Alternating ditch lights are a rarity in Canada
- VIA's new P42's have them, as does some leased power scattered
hither and yon.
Beowulf - 14 Jun 2004 20:37 GMT
salvé

>  > rather interesting, but it does beg the question that if someone cant
>  >  see a75 tonne plus locomotive with ordinairy headlights how is the
[quoted text clipped - 16 lines]
> about to run over, which makes it easier to describe when you contact
> the signal box to report the collision.

Well in the Uk the lights on a loco hadnt any function re forward
illumination they were there as class lights etc hence during daylight they
didnt actually need to be lit, as for the lights on swedish locos they are
very powerful indeed and can blind motorists which is why they have a
dipping (dim?) mechanism the same as a car has, the fact is a that a train
travelling at 60mph (100kph) will take nearly a mile to stop longer for
vacuum braked british steam trains even longer for unbraked goods trains
(individual wagons have no travelling brakes only the loco and the guardsvan
have brakes)  I cant see that a train pulled by a massive loco with a stobe
or flashing  light or powerful headlight really needs any other
illumination, now if its propelling the train I can see problems ! but so
far only B dubya's explanation seems vaguely plausible, and even then I'm
not convinced, for what its worth I was a train guard on BR and have worked
on Northern Irelands railway (which was an adventure that Walt Disney
couldnt film as no one would believe me.....)  It seems to me that if the
visibility of a loco is the purpose, ie to be able to see the loco better
then lights shining vertically along the sides of the loco illuminating the
actual bodywork are far superior to a couple of meager powered lights aimed
downward from a yard above the rails. having seen the remains of what were
once people who have been hit by trains I am not sure that any driver would
want to be able to describe events... it reminds me of a guy I knew who was
a codriver on a Deltic blatting along at close to 120mph when a suicide
stepped out in front of the train, apparently the guys head sailed past the
windscreen, "Thon girt bugger was smiling at me!" he used to say, for the
USA citizens the first part translated means" that big bugger"....... not
that he was especially big after impact..........
Beowulf
 
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