The next level: innovations in crossing safety21 October 2013
Level-crossing safety remains at the top of the global rail industry agenda as a raft of new technologies threaten to make traditional techniques obsolete. Julian Turner investigates intelligent transport systems, integrated satellite services and UK authority Network Rail’s £130-million investment package.
The statistics make for sobering reading. Despite high-profile safety campaigns, the closure of 700 crossings since 2010 and UK authority Network Rail's rolling £130-million investment in new footbridges, barriers and technology, nine people in the UK have been killed at level crossings in the last year, 453 pedestrians and motorists were involved in near misses, and ten cars were struck by trains.
In April, Network Rail was fined £450,000 after a 52-year-old woman was killed when the car she was in was struck at a level crossing after the safety barriers had been raised. A signalman was also fined £1,750 for the incident, which the court heard might not have happened had Network Rail installed an automatic barrier-locking system at the site at Moreton-on-Lugg, Herefordshire.
The tragedy amplified calls for level crossings across the UK rail network - which, according to the Office of Rail Regulation (ORR), are among the safest in Europe - to be replaced either by new automated systems, or by underpasses and footbridges. Bob Crow, general secretary of the Rail, Maritime and Transport workers' union (RMT), summed up opinion in many quarters when he said: "The only solution is speeding up the phase-out of these crossings, which are a 19th-century solution in an era of high-speed rail.".
Network Rail's £130-million investment programme
In August 2012, Network Rail unveiled an ambitious 18-month safety enhancement programme aimed at reducing the risk to the public by 25% at over 6,500 level crossings by March 2014.
Described by the authority's head of level crossings Martin Gallagher as "the most significant business change programme for level crossings in the history of the railway", the project includes investment in new technologies, the phased closure of foot crossings in favour of new bridges and/or underpasses, strategic deployment of specialist staff, and public education and awareness.
New technologies include a GPS-based train detection system being trialled in Anglia in the east of the UK in tandem with WaveTrain, a mobile detection technique developed in Norway that tracks train movements using seismological sensors attached to rails. In addition, a new audible warning device that alerts users verbally of an approaching second train has been installed at Scarrington Lane in the East Midlands.
Network Rail is also working with the Driver and Vehicle Licensing Agency (DVLA) and the Home Office to introduce type-approved fixed enforcement cameras aimed at deterring motorists from running lights and weaving barriers. A marked British Transport Police van fitted with nine number plate recognition cameras has already been installed at Shiplake station in Oxfordshire, the scene of 13 near misses involving vehicles and pedestrians since 2009. Network Rail plans to eventually introduce 'smart cameras' for better census-gathering at 660 locations.
Shiplake has also benefitted from a modular engineering solution that allows the rapid and cost-effective fitment of barriers to automatic open crossings (AOCL). Successfully trialled at two sites in Scotland and one in Cumbria, the pioneering ABCL (automatic barrier crossings, locally monitored) half-barriers were successfully integrated with the existing crossing system to reduce barrier down times and congestion; a total of 72 low-cost barriers will be installed nationwide.
With 80% of fatalities at level crossings in the past decade involving pedestrians, the phased closure of foot crossings has the support of passenger watchdogs and the RMT. Network Rail has singled out 200 sites around the UK to assess their suitability for standard, modular design footbridges, with a view to obtaining planning consents and legal footpath diversion orders.
The strategic deployment of staff involves the national introduction of over 100 dedicated level crossing managers with specialist training, while public education and awareness takes the form of nationwide media campaigns. In May, a total of 100 events throughout the UK highlighted the dangers of ignoring warning signs and barriers, one of the biggest risks of derailment and multifatality accidents at automatic crossings.
The SafeRail project
Elsewhere in Europe, German engineering company Berner & Mattner has secured a contract to carry out the 'SafeRail - Improving Safety at Railway Level Crossings' feasibility study for the European Space Agency (ESA).
The study is part of the ESA's integrated applications promotion programme to improve level crossing safety by combining terrestrial technologies with space assets such as telecommunications, Earth observation and navigation. The main aim of the study is to assess the technical feasibility and economic viability of an integrated satellite service combining space and ground-based technology.
According to Berner & Mattner, the risk at level crossings is very high dueto the intersection of two different traffic modes and around 25% of all railroad fatalities are caused by accidents at crossings.
The SafeRail assessment will investigate technical means to determine railroad vehicle positions using relative measurements and satellite navigation, redundant terrestrial and satellite-based communications, and integrated traffic information systems for driver information.
Austrian companies Brimatech Services, Joanneum Research and TeleConsult Austria, and UK-based Avanti Communications are partners in the study, which also includes experts from the fields of satellite communication, navigation technology, and economic and non-economic technology assessment.
The Australian rail industry has set itself the ambitious target of zero harm at the nation's estimated 23,500 operational railway level crossings by 2025. At Rail Safety 2013, a recent workshop organised by the Rail Industry Safety and Standards Board (RISSB), national and international experts, operators and regulators discussed radical technology solutions designed to prevent the 37 deaths at crossings every year and reduce the annual bill for rail level crossing (RLX) incidents in Australia, which currently standsat A$116 million.
Funded by the Cooperative Research Centre for Railway Engineering and Technologies (RailCRC), the ITS for Safer Level Crossings project aims to improve level crossing safety by examining road vehicle drivers' responses to new intelligent transport systems (ITS).
Scientists at Queensland University of Technology have finalised design and methodology for the CARRS-Q driving simulator, which will assess the effects of the ITS on driving performance, mental workload, user acceptance and effects on traffic flows around rail level crossings.
The rail sector can also benefit from new technology being developed by the automotive industry, such as cooperative intelligent transport systems (C-ITS), dedicated short-range communications (DSRC) and motor vehicle anti-collision applications.
According to Terry Spicer, managing director of RLX Safety International, innovation in vehicle and road technology "has the potential to reshape the way we interact with vehicles, infrastructure and mobility devices, and indeed the future design of our cities, roads and transport systems, including both road and pedestrian users of level crossings".
Despite notable improvements in level crossing safety and a corresponding decrease in incidents, a steady stream of fatal accidents worldwide proves that the issue remains unresolved.
In the UK, Network Rail's five-year, £37.5-billion investment in UK rail includes 355,000 more trains in service and 225 million additional passengers a year. This expansion means that level crossing safety technology and practice must continue to evolve in order to keep pace with increased demand.
Network Rail has been ordered by the ORR to save £2 billion over the next five years, while improving punctuality and maintaining safety standards. It remains to be seen how this will impact on investment in level crossing technology, staffing and infrastructure.
What is clear is that the concerted effort on behalf of all rail industry stakeholders must continue as long as, in the words of the ORR, the UK's level crossings continue to "pose a significant rail safety risk to the public".