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This paper shares experience of technical evidence production as part of the High Speed Two (HS2) Phase 2a project, which led to successful outcomes for the Promoter at House of...

Strong crosswinds have been known to overturn trains. High-speed trains can be especially at risk because the higher the train speed, the lower the critical wind speed at which overturning...

This paper discusses the implementation of the Historic Environment Research and Delivery Strategy (HERDS) for High Speed Two (HS2) Phase One, London to Birmingham. It discusses the question-led approach to...

Resource efficiency, regarding waste minimisation and material re-use, is central to infrastructure construction for both environmental and financial sustainability, especially given the sheer scale of such projects. Maximising resource efficiency...

The Midland Main Line needs to be remodelled and electrified to accommodate High Speed Two (HS2) train services to Sheffield. This paper addresses how the issue of site surveys, to...

The majority of large-scale infrastructure projects are required to undertake an Environmental Impact Assessment (EIA). This process enables environmental specialists to identify what resources may be impacted by the proposed...

High Speed Two (HS2) is delivering a new environmental framework alongside the railway infrastructure; creating landscape plantings sites and new ecological habitats and features in advance of the main construction...

High Speed Two (HS2) Phase One includes the design and construction of six ventilation shafts in Lot S1 (Canterbury Works and Adelaide Road vent shafts) and in Lot S2 (South...

Noise barriers on high-speed lines have attracted significant attention in recent years due to concerns over performance in use. Lightweight barriers have been damaged by bird strike, train aerodynamic pressures...

This paper describes novel methods and tools used to set up, run and review results from multiple 2D finite element analyses for the High Speed Two (HS2) Euston Scissor Cut,...

The High Speed Two (HS2) affordability challenge launched in November 2018 was the springboard to new ideas to change the scheme in the West Ruislip area. The idea was named...

This project is one of the most complex and challenging railway initiatives the United Kingdom has ever undertaken. Tasked with saving the government £500 million in digital efficiencies, HS2 is...

Operational considerations for the High Speed Two (HS2) TBM twin tunnels require cross passage connections and ventilation openings that are critical for not only the safe operation but also for...

Launching tunnel boring machines (TBMs) from a station box or launch shaft is a delicate operation that requires careful planning to maintain safety. Seven TBMs excavate the tunnels on HS2...

Structural fire protection is provided to structures where necesssary to ensure the resilience of the structure in the event of a fire. Loss of material strength at high temperature and...

This paper describes a ventilation concept for Copthall tunnel which allows this 600m long tunnel to be naturally ventilated to control pressures, temperatures and control smoke in the event of...

At High Speed Two (HS2), sustainability is all about delivering social, environmental and economic benefits through the ambition of building the most sustainable high-speed railway of its kind in the...

In every high-speed railway project, the track alignment is one of the most, if not the most, critical element of design. The alignment is the basis that the rest of...

Traditionally, geological interpretation is undertaken by manually annotating cross-sections, and updating them when new information becomes available. This is a time-consuming process and goes against the principles of good digital...

Supply chain partners who are making the switch to low carbon, high efficiency "clean energy" plant and vehicles have been proactively sought out on the High Speed Two (HS2) Enabling...

Protected species constraints are an early consideration for nearly every development project, and where impacts cannot be avoided mitigation licensing is a legal requirement. High Speed Two (HS2) Ltd are...

The reburial programme on HS2 Phase One is unprecedented: never has an engineering project been faced with the challenge of such numbers of buried human remains to remove, look after...

The HS2 Automated People Mover (APM) provides the link between the new Interchange Station and existing local infrastructure of the NEC, Birmingham International Railway Station and Birmingham Airport. The system...

A key concern around any construction site is the generation of dust and the short-term nuisance and its long-term health effects. High Speed Two (HS2) aims to avoid emissions associated...

Reducing carbon emissions from infrastructure delivery is key to achieving national carbon emission reductions and is fundamental to addressing the global challenge of climate change. There is also a compelling...

Resilience is core to being a good business. One of the greatest risks that businesses face is adapting to climate change. HS2 is mitigating climate change by reducing its emissions,...

High Speed Two (HS2) Lots C2 and C3 covers a section approximately 80km long between the Chilterns and Warwickshire. To enable construction of these sections, it was identified that a...

Autodesk Software package InfraWorks is a 3D Infrastructure planning and design tool which is being used to model specific areas of the High Speed Two (HS2) proposed route and the...

The High Speed Two (HS2) Chiltern Tunnel will contain 40 cross passages (CPs), 38 of which are mined tunnels based on sprayed concrete lining (SCL) design. The Chiltern Tunnel and...

The tunnel portal structures to each end of the Chiltern Tunnel are the first example of high-speed rail porous portal structures in the UK. Porous portals exist in other countries...