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.

For more information on companies in this article

Related Content

  • TRL: Cities must do more to help VRUs
    May 9, 2019
    UK cities must learn from the Netherlands and Denmark if active travel and increased safety for vulnerable road users are to co-exist, says TRL’s Marcus Jones Active travel’ refers to modes of transport in which physical effort is required to undertake purposeful journeys - for example, walking or cycling to school, work or the local shops, as well as walking and standing as part of accessing public transport. The benefits of replacing short car journeys with more active forms of transport are obvious. Act
  • Average speed cameras go live on Scotland’s motorway upgrade
    July 17, 2015
    Average speed cameras are due to go live across the US$780 million M8 M73 M74 Motorway Improvements Project in Scotland. It is hoped they will encourage a safe and steady traffic flow by monitoring the average speed of vehicles through the works to ensure the safety of both road users and road workers. The cameras are expected to go live on 20 July and will remain in place until the completion of the project in spring 2017.
  • New opportunities in a data-rich future
    March 19, 2014
    Jason Barnes looks at where the detection and monitoring sector is heading. In the future, there will be no such thing as an un-instrumented road. Just a short time ago, that could have been a quote from a high-level policy document but with the first arrivals of vehicles with 802.11p connectivity – the door-opener to Vehicle-to-X (V2X) applications – it’s a statement which has increasing validity. The technology which uses our roads will also provide information on road conditions but V2X isn’t the only
  • Michigan fosters real-world testing of workzone ITS
    September 19, 2017
    Turning a ‘problem’ into ‘an opportunity’ is the mantra of just about every business book and Michigan Department of Transportation (MDoT) looks set to achieve that aim in Oakland County, where 29km (18 miles) of the I-75 needs to be reconstructed. Running north-northwest from Detroit, the I-75 carries around 170,000 vehicles per day but, being built in the 1970s, it now requires an additional lane in each direction and upgrading to the latest design and safety standards. Upgrading will be carried out in