Help in deciphering Rail Speak

[Hoover fan213]

I'm a member of another group (Railway Herald) on their they list special tours with Locomotives such as Diesels and Electrics etc well after some station names it lists acronyms and i was wondering if anyone new their meanings. e.g

Derby (pu) - Burton upon Trent (pu) - Tamworth High Level (pu) - Birmingham New Street (pu) - Worcestershire Parkway (pu) - Cheltenham Spa (pu) - Stroud (pu) - Swindon (pu) - Appleford Sidings (rev)– Milton Siding (rev) – Didcot Parkway Up/Down Goods Loop – Reading Up Passenger Loop – Reading – Maidenhead Loop – Slough Up Goods Loop – Langley Siding – Iver Up Goods Loop – West Drayton Up Goods Loop (rev) – Colnbrook Branch (rev) – Dawley Up Goods Loop – Hayes Up Goods Loop – Hanwell Goods Loop – West Ealing – Acton Dive-under – Royal Oak Sidings – London Paddington (short break, rev). Return via Royal Oak Sidings – Southall West Loop (rev) – Brentford Branch (rev) – Slough – Kennet Passenger Loop – Reading – Down Festival Line – Didcot Parkway (sd) - Swindon (sd) - Sroud (sd) - Cheltenham Spa (sd) - Worcestershire Parkway (sd) - Birmingham New Street (sd) - Tamworth High Level (sd) - Burton upon Trent (sd) - Derby

I'm probably being thick but just after some help

 

[Trainguy34]

(pu) is pick up only, (Rev) is reverse, (sd) is set down / alight only

 

[Hoover fan213]

(pu) is pick up only, (Rev) is reverse, (sd) is set down / alight only

Thank you that makes sense