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SWhat is "Tops" in the ERA System???

Jimyjames

403 posts

Hiya Undecided

I was looking at the "TRACKS OF CHANGE - EXPLAINING OUR ERA SYSTEM" page & I noticed it said 

6 British Rail Pre-TOPS 1957-1971 Class 71
7 British Rail TOPS 1971-1986 Class 87

What does it mean by "Pre-Tops" & "Tops"???

& what does the word "Sectorisation" mean???

Thank you :)

Jimyjames - You can only please some of the people some of the time, But not all of the people all of the time, & that is why I have a mixture of vids on my YouTube Channel.

walkingthedog

17605 posts

It stands for Total Operations Processing System. Simplistically it was a way of categorising equipment. This is a made up example.

 

Before TOPS a diesel might be numbered D456. No indication of what it is apart from being a diesel. After TOPS it would be 37 456. It’s a Class 37. Once more these are not real numbers before I get jumped on, just an example. 

WTD ........... Nurse, the screens.

Postman Prat

6113 posts

Simplified, TOPS is a computerisd system whereby every loco, or other vehicle,is tracked . In that way they can, for example, keep tabs on when a certain vehicle requires overhaul, that sort of thing. To make it work all locos were renumbered - the first 2 numbers are the class, the third the subclass and the reaining 2 are the individual locos. This was introduced in 1971

 

In the 1980s the entire system was split into business units e.g NSE, InterCity and all costs incurred by each units were allocated to that sector. Freight was treated the same way. Each sector had its own locos, rolling stock and I believe even track, and if another sector wanted to use something 'owned' by an other they had to pay for it.  e.g. the loco allocated for a prticular InterCity train fails - you have to borrow  a Railfreight Coal to run the service. You have to pay a hire charge for the standin loco.

 

There's a lot more to it than what I've just put but I haven't the time, or knowledge, to go any further.

 

Hope this helps

 

 

PP.......... The light at the end of the tunnel is probably a train coming towards you

Postman Prat

6113 posts

Hi WTD

 

Thanks for putting TOPS in full - I just could not remember the full, correct version.

 

Would I jump on you for not knowing that D456 didn't exist? The D400s were what became class 50s, the 37s were D6600-D6608, D6700 - D6999        Wink

PP.......... The light at the end of the tunnel is probably a train coming towards you

Caiptean

2772 posts

Without resorting to Google who can identify what were BR's TOPS class 99?  Wink

 

(and what was significantly unique about their BR corporate livery)

I enjoy life - it gives me something to do! - especially modelling BR's Southern Region 1955-61.

walkingthedog

17605 posts

Think I know and I promise I haven’t Googled. Left hand down a bit.

WTD ........... Nurse, the screens.

Caiptean

2772 posts

@WTD Wink

I enjoy life - it gives me something to do! - especially modelling BR's Southern Region 1955-61.

trainlover23

1067 posts

@Caiptean

Without resorting to Google who can identify what were BR's TOPS class 99?  Wink

 

(and what was significantly unique about their BR corporate livery)

Not using Google they are reserved for steam locos . i am not sure if it is purely narrow gauge or all staem that is permitted to run on the National Network.

If narrow gauge they were the Vale of Rhediol locos and they were the only steam locos that carried BR Corporate Blue. 

Ericm0hff

5683 posts

I thought TOPS meant Tired Old Paper Shufflers!  Tongue Out

if it works first time, you did something wrong!

Caiptean

2772 posts

Under British Rail TOPS class 99 were the Sealink ferries.  Smile

 

The unique feature about their BR livery was the reversed double arrow on one side of the funnell!  Wink

I enjoy life - it gives me something to do! - especially modelling BR's Southern Region 1955-61.

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