Skip to main content

Successful trials ‘prove effectiveness’ of speed limiting technology on buses

Transport for London (TfL) has completed trials of intelligent speed assistance (ISA) technology fitted to buses. The trials saw the technology, which prevents vehicles from accelerating over speed limits, fully tested on two bus routes that included a variety of road environments and differing speed limits. All buses fitted with ISA remained within the speed limit 97-99 per cent of the time, which TfL says proves the effectiveness of ISA. The extremely rare incidents of excess speeds were seen on downhi
March 18, 2016 Read time: 2 mins
1466 Transport for London (TfL) has completed trials of intelligent speed assistance (ISA) technology fitted to buses. The trials saw the technology, which prevents vehicles from accelerating over speed limits, fully tested on two bus routes that included a variety of road environments and differing speed limits.

All buses fitted with ISA remained within the speed limit 97-99 per cent of the time, which TfL says proves the effectiveness of ISA. The extremely rare incidents of excess speeds were seen on downhill sections of road.

TfL says the trials were particularly effective when travelling through 20mph zones, which are being widely introduced and cover around a quarter of London’s roads, helping to ensure other vehicles in the area adhered to the limit.

As part of the Mayor’s bus safety standard for London, that he announced last month, TfL intends to require all new buses from 2017 to have this technology fitted.

Related Content

  • April 26, 2019
    London debuts three more low-emission bus zones
    Transport for London (TfL) and the city’s mayor Sadiq Khan have introduced three more low-emission bus zones (LEBZ) to help reduce toxic air in the UK capital. There are now 10 LEBZs in London, which are expected to reduce nitrogen oxide (NOx) by 90% along some of the capital’s most polluted roads. Buses operating within the zones meet the cleanest emissions standards and have been delivered through a combination of new and retrofitted vehicles, TfL says. The three new zones in Lewisham, Stratford and
  • May 18, 2020
    Car-free zones part of London 'reimagining'
    Parts of central London will become “one of the largest car-free zones in any capital city in the world”, according to the city’s mayor Sadiq Khan.
  • June 5, 2015
    TfL trials cyclist detection
    New world first trials would allow TfL to better cater for cyclists at key junctions Further on-street trials will take place later this year TfL now given blanket approval from DfT to install low-level cycle signals at junctions Transport for London (TfL) is to trial a new technology that will help give cyclists more time on green lights.
  • March 15, 2012
    Traffic signals turn red to stop speeding drivers
    David Crawford is encouraged by the spread of 'soft' speed policing