Complex sentence: Served by trains between Birmingham and Stratford-upon-Avon, it is a request stop: passengers wishing to board a train here must signal to the driver; those wishing to alight must inform the train conductor.
Split into simpler sentences: Served by trains between Birmingham and Stratford-upon-Avon. It is a request stop: passengers wishing to board a train here must signal to the driver; those wishing to alight must inform the train conductor.