Bus speeds on key routes in Belfast rose by nearly a third in a year, with increases across all routes.
Figures released by the Northern Ireland Executive’s Department for Infrastructure (DfI) show that the average speed of buses on four of the five 'metro corridors' that have been monitored since 2001 rose 32% from 13.16 km/h in 2014 to 17.35 km/h in 2015.
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Average bus speeds rose on all 11 routes for which comparable figure are available, including an increase from 9.63 km/h to 15.72 km/h on the Falls Road.
A DfI spokesperson said: ‘Bus speeds for 2015 show a significant increase on 2013 and 2014 speeds across all corridors.
‘In addition, on the five corridors which have been monitored since 2001, there is an increase from 2001 to 2015 on all monitored corridors, except the Lisburn Road.'
There are more than 50 kilometres of bus lanes at around 60 locations along the main routes in Belfast, with many having opened last year, and the DfI is planning more.
Monitoring is undertaken every October as this is regarded as the most representative month.