Since 2003, demand at the Bank-Monument station complex has risen by over 50% to 337,000 customers per day. According to Transport for London, ""areas of the station are close to 'saturation' point, where day to day demand overwhelms capacity"." Unlike other congested stations such as Oxford Circus, passengers cannot be held back at station entrances during peak times to avoid overwhelming the station, as around half of passengers are interchanging between lines. The high demand on the station is exacerbated by the narrow passageways, pinch points, spiral staircases and indirect routes between lines. Some parts of the station operate "one way", with staff directing passengers on longer routes to increase the capacity of the station.