All taxis can use bus lanes in many cities in Ireland and the UK.
Bus lanes are shown by road markings and signs that indicate which (if any) other vehicles are permitted to use the bus lane. In Belfast city centre the legislation allows permitted taxis, motorcycles and bicycles to use bus lanes. [...] Bus lane signs show the times when they operate. Most bus lanes operate at peak times only (typically 7.30am to 9.30am or 3.30pm to 6.00pm on Monday to Friday). Outside the hours of operation the lanes can be used by all traffic. The legislation for most bus lanes allows permitted taxis, motorcycles and bicycles to use bus lanes.