Rejuvenation Chiltern Main Line

class 165 dmus introduced chiltern main line network southeast

with sectorisation of british rail in mid-1980s, operations south of banbury fell under control of network southeast in 1986, under thames & chiltern sub-sector, later split 2 constituent parts. in 1987 new station opened @ haddenham & thames parkway. birmingham snow hill reopened in 1987 on smaller scale original, beneath multi-storey car park, tunnel reinstated , new platforms on through lines @ moor street, terminus taken out of use, leamington/stratford services diverted snow hill.

the opening of extension of parallel m40 motorway oxford birmingham in 1991 spawned development in towns along northern section of route, notably bicester, banbury, leamington spa , warwick. generated additional patronage train services in corridor.

class 165 turbo trains introduced in 1991, between marylebone , banbury. these improved passenger comfort , enabled journey times reduced; frequencies increased, hourly stopping service to/from high wycombe , hourly semi-fast service to/from banbury. in 1993, marylebone-banbury services extended snow hill, calling @ leamington spa, warwick, solihull , moor street, on two-hourly frequency, increased hourly following year, when dorridge call added. in 1995 jewellery line re-opened allow worcester line services diverted new street snow hill; allowed of chiltern s weekday peak-period services extended beyond snow hill, first stourbridge junction , kidderminster.