The City Shuttle Service was a network of bus services in Singapore between May 1975 and April 2007 by NTUC Comfort and Singapore Shuttle Bus. It was purchased by Trans-Island Bus Services, a former subsidiary of Singapore Shuttle Bus, in 1987. History The City Shuttle Service (CSS) was an initiative introduced on 16 May 1975 by the Singapore government, as part of a park & ride scheme aimed at reducing traffic congestion in the city. It was originally hoped that car owners would park at designated car parks and transfer to CSS bus services to enter the central business district (CBD). Eleven inaugural services commenced operations by with NTUC Comfort operating four (1, 4, 6, 11) and Singapore Shuttle Bus (SSB) seven (2, 3, 5, 7-10), which plied between 16 fringe car parks, 7 city area termini and 49 selected bus stops with 88 25-30 seater single door Mercedes-Benz buses. However, the initial arrangement was not popular with car owners and the scheme was terminated, resulting in the company being allowed to operate regular services that extended into the housing estates and had reduced to nine services (six services operated by SSB and the three by NTUC Comfort). As the purpose of the CSS scheme was to serve working commuters, no services were operated on Sundays and public holidays. The bus services that extended towards the housing estates in 1976 are as follows: 1: Extended from National Stadium Carpark E and Holland Road Fringe Carpark to Queensway and Marine Terrace 2: Extended from Holland Road Fringe Carpark to Holland Drive 3: Extended from Chancery Lane Fringe Carpark to St Michael's 4: Diverted to terminate at Marine Terrace and extended to New Bridge Road 5: Extended from Whitley Road Fringe Carpark to Sin Ming 6: Extended from Serangoon Road Fringe Carpark and Outram Park to Bukit Merah and Circuit Road 7: Extended from Kampong Java Fringe Carpark to St Michael's 8: Extended from National Stadium Carpark E to Bedok South and Bedok 9: Extended from Serangoon Road Fringe Carpark to Geylang Lorong 1 On 25 June 1988, NTUC Comfort withdrew routes 1 and 4, citing a decline in commuter demand due to the MRT's opening. Its remaining service (route 6) ran until 1990, when the buses used reached the end of their permitted lifespans. The initial fleet was replaced with larger DAF SB220 and Nissan Diesel buses. CSS was the first