underground railway was planned according to the Berlin model. The outbreak of the First World War in 1914, however, prevented the implementation of these plans. In the summer 1914 timetable, trains ran from Frankfurt to Offenbach at twenty-minute intervals from 5.40 to midnight. Like the Wars of 1866 and 1870/71, the First World War also affected operation of the Lokalbahn considerably. Passenger numbers halved and coal and spare parts shortage repeatedly closed the line. The timetable was thinned until 1918, when it was completely closed. In 1920, Monday to Saturday trains recommenced at 40-minute intervals. After an attempt to close the line in 1921, which was abandoned after protests from local residents, operations were limited from 1925 to 6 to 9 AM and 4 to 8 PM on Monday to Saturday and 1 to 8 PM on Sundays and public holidays. Luggage and parcel services were abandoned and staff reduced to a minimum. The Second World War affected rail service only slightly at first. Early in 1942 the schedule was temporarily reduced to hourly operations, but in November the same year trains were running every half-hour. In January and March 1944, allied bombing raids at times disrupted the track and destroyed the station building in Frankfurt, but operations resumed after a few days each time. The war finally closed operations on 28 August 1944. Damage to the Lokalbahn was repaired and the line was put back into operation on 2 December 1946. A four-axle diesel engine of class VT 60.5 was used to haul services instead of the steam trains formerly used. Services ran every half-hour from the 1947/48 winter timetable. Closure Some time after the currency reform of 1948, increasing motorisation and an improved rail service on the Bebra line led to the number of passengers quickly falling to about 1000 per day. Deutsche Bundesbahn (German Federal Railways) therefore decided to close the now highly unprofitable line on 1 October 1955. During the last three days of operations, travel on the trains was free. With the exception of Oberrad station, all rail track was isolated and building abandoned on the Lokalbahn in the summer of 1956. A new tram station and an office building were built on the site of Frankfurt Lokalbahn station in 1970. In 1990, an S-Bahn station of the same name opened south of the former Lokalbahn station. Parts of the former Lokalbahn line were used