Orbital line CHKU run services on the line between Corpus Christi and Chiswick-Turnham Airport Terminal 2
Carlswick line CHKU run services on the line between Verney Junction and Iron Bridge
Darvy Hill line CHKU run services on the line between Iron Bridge and Fareham
Night services (operated by CHKU)
All stations services:
Corpus Christi-Chesham - every 20 minutes
North Weald Airport-Chiswick Airport Terminal 2 - every 20 minutes
Fast services:
Corpus Christi-Chiswick Airport Terminal 2 - every 30 minutes
Night bus services operate over all other parts of the Orbital North lines, as well as Bunny Rise, Carlswick, Darvy Hill and Orbital CHKU services
History:
*Information pending*
Current Rolling Stock (Chiswick Suburban trains):
Class 319/6
Built in 1988
From BREL, United Kingdom
Replaced early AMM electric units
Ordered for Orbital line CHKU & CHKS
Powered either via overhead wires to 25kV AC or third rail 750V
4 coach trains usually coupled in pairs to make a 8 coach train on all services sometimes coupled to make a 12 coach train in peak hours
Class 324
Built in 1999
From WPC (domestically built)
Allowed for more Class 319s to be moved to main Orbital line services
Ordered and delivered initially for North Coteshire Railway services
Cascaded to CHKS in 2015
Will be replaced by Class 355s in 2021
Powered either via overhead wires to 25kV AC or third rail 750V
4 coach trains
Used only on OR4 and OR5 services
Class 355/0, /1 "Flirt"
Built in 2019
From Stadler, Germany
To replace Class 319s and 324s
Ordered for Orbital line CHKS as part of a joint order with Stadler METROs for CHKU
Powered either via overhead wires to 25kV AC or third rail 750V
/0 - 5 coach trains ususally used as a single unit on OR4 & OR5 coupled to a /1 to make a 13 coach train during peak hours coupled in pairs to make a 10 coach train during off-peak hours
/1 - 8 coach trains usually used as a single unit on all routes except OR4 & OR5 off-peak coupled to a /1 to make a 13 coach train during peak hours