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Non-Passenger Carrying Coaches

TOPS codes

(Total Operations Processing System)

RES-liveried 47 474 hauling unidentified BR Blue General Utility Vehicles (GUV) through Reading station on Monday, 24^th June, 1991.

© Dave Hitchbourne (CC-by-SA/2.0)

TOPS

TOPS was originally developed between the Southern Pacific Railroad (SP), Stanford University and IBM as a replacement for paper-based systems for managing rail logistics; this was implimented through a joint company TOPS On-Line Inc. (est. 1960). TOPS became widely adopted throughout North America and beyond. British Rail acquired and implemented TOPS during the mid-1970s with its successors continuing to operate the system.

Shunting locomotive 08 850 is coupled to two BR Blue General Utility Vehicles (GUV) at Reading station on Tuesday, 5th September 1989.

© Dave Hitchbourne (CC-by-SA/2.0)

The following TOPS codes were used by British Rail for non-passenger carrying vehicles.
Code
NAV	Bogie brake van (BG). 90mph. With gangways.
NCV /NCX	Bogie brake van. 90mph. (For News).
NDV /NDX	Bogie brake van. 90mph. With gangways.
NEA	Bogie brake van. 100mph. With gangways
NFA	Bogie brake van. 90mph. No gangways
NHA	Bogie brake van.110mph. With Gangways
NJV /NJX /NJA	General Utility Vehicle (GUV) 90mph
NKV /NKX /NKA	GUV. 90mph. Modified for BRUTES
NLV /NLX	GUV. 90mph for news (later grouped with NKV /NKX /NKA)
NOV	4-wheel CCT (75mph)
NQV	Parcels & miscellaneous van (75mph)
NXV /NXX	Motorail GUV
Notes	The last character indicates the brake type:
V	Vacuum braked only
A	Air braked only
X	Dual braked (vacuum or air braked, not both together at the same time.)

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