 With a railway now running near the boundary of the Wotton House estate at Quainton Road , the 3rd Duke decided to open a small @-@ scale agricultural railway to connect the estate to the railway . The line was intended purely for the transport of construction materials and agricultural produce , and not passengers . The line was to run roughly southwest from Quainton Road to a new railway station near Wotton Underwood . Just west of the station at Wotton the line split . One section would run west to Wood Siding near Brill . A short stub called Church Siding would run northwest into the village of Wotton Underwood itself , terminating near the parish church , and a 1 mile 57 chain ( 1 mile 1 @,@ 254 yards ; 2 @.@ 8 km ) siding would run north to a coal siding near Kingswood . 
