{"id":9981,"date":"2023-05-27T15:42:52","date_gmt":"2023-05-27T13:42:52","guid":{"rendered":"https:\/\/www.systra.com\/ireland\/?p=9981"},"modified":"2023-10-12T09:02:21","modified_gmt":"2023-10-12T08:02:21","slug":"hs2-slides-into-the-record-books","status":"publish","type":"post","link":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/","title":{"rendered":"HS2 slides into the record books"},"content":{"rendered":"\n<p class=\"has-medium-font-size\"><strong>In December, HS2 celebrated a world first as a team of around 450 people, led by HS2\u2019s construction partner in the Midlands Balfour Beatty VINCI (BBV), slid a 12,600-tonne bridge a record 165 metres across a motorway in Warwickshire.<\/strong><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>A video of the Marston Box Rail Bridge sliding into position over the M42 was the BBC\u2019s \u2018most watched\u2019 at one point over the Christmas break. As the footage demonstrates, this was both an impressive spectacle and an engineering triumph that could lead to wider use of this method in the UK.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>It was good news for motorists too. The project team worked closely with National Highways to eliminate two years of restrictions and the closure even ended a whole day earlier than planned.<\/p>\n\n\n\n<div style=\"height:61px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignfull has-blanc-background-color has-background is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:15%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"youtube_wrapper\" videoID=\"DxGd83rzcts\"><iframe title=\"HS2 completes World-First box \u2018bridge slide\u2019 over the M42 in Warwickshire\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/DxGd83rzcts?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:15%\"><\/div>\n<\/div>\n\n\n\n<div style=\"height:61px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-griplusclair-background-color has-background\">\u201cThe Marston Box slide was a great example of what can be achieved when we work collaboratively and as one team,\u201d says Sasan Ghavami, BBV\u2019s construction director, who oversaw the project. \u201cThis complex and challenging puzzle was solved thanks to lots of different teams coming together, each bringing their own area of expertise and experience. It\u2019s certainly a career highlight for me, as I\u2019m sure it is for many others who contributed to this impressive engineering feat.\u201d<\/p>\n\n\n\n<p class=\"has-griplusclair-background-color has-background\">Sasan Ghavami, BBV\u2019s Construction Director<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Taking place between Christmas Eve and Boxing Day, this was the first slide of its kind across a smotorway in the UK and specialist Freyssinet, which designed the slide, believes it to be the world\u2019s longest. Box slides are not uncommon in the UK but are usually over or under rail lines; in North Africa and Europe, box slides over highways are less of a novelty.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>This was an alternative design for the M42 Marston Box Rail Bridge, requiring BBV\u2019s designer SYSTRA &#8211; as part of the Mott MacDonald SYSTRA Design Joint Venture &#8211; to rethink the structure, working closely with Freyssinet on the interfaces between temporary and permanent works to ensure the bridge\u2019s 120-year design life. And then there was the plethora of tolerances to contend with, how the structure would settle and the impact on headroom for the motorway and the high-speed rail line above it, since the box sits straight on top of compacted fill with no piles. &nbsp;<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-griplusclair-background-color has-background\">\u201cWe had to look at all the positive and negative tolerances and understand how they would work in multiple scenarios. As a project team, we worked closely with HS2, BBV and Freyssinet to understand their methodology and with our geotechnical engineers to understand the ground conditions. And we had to build some flexibility into the design.\u201d <\/p>\n\n\n\n<p class=\"has-griplusclair-background-color has-background\">~ Paul Mills, Design Manager, SYSTRA Ltd<\/p>\n<\/div><\/div>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-slimmed-down\">slimmed down<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The design for the original M42 Marston Box Bridge, which crosses the M42 near junction 9 in Warwickshire, consisted of a pergola-type structure, sitting perpendicular to the carriageway. The box slide alternative came out of an extensive and wide-ranging value engineering exercise that took place in 2018 after BBV was appointed on lots N1 and N2 phase 1 of the HS2 project.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u201cWe were looking at ideas, construction methods, innovation, how we could do things better than the way assumed at the hybrid bill stage,\u201d recalls SYSTRA\u2019s UK highways lead Andy Baines.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>It was a big step for National Highways to agree to this method, but there were some compelling reasons why it looked like a good alternative, says Baines. First, this would be far safer for workers and drivers, with much less work taking place alongside live motorway lanes. Second, there would be far less disruption to road users: rather than two years of reduced lane widths and speed limits and three months of overnight closures, this method required just two road closures.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The new bridge design consists of a two-cell box, skewed at an angle of 61 degrees. It has a large flat base, to reduce the bearing pressure in the temporary and permanent states, three piers which span its width, and a top deck.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>There were carbon saving benefits to this solution. Since this structure had to be pushed into position, it was vital to limit its weight. The result is a structure that uses far less concrete, with a smaller plan area than its predecessor design and no concrete piles, leading to a significant reduction in embodied carbon.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-the-slide\">The slide<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Like all the best engineering solutions, Freyssinet\u2019s patented sliding system is simple in its concept. The box structure is constructed on top of a concrete guide raft, with grease and polythene sheeting between the two concrete surfaces, bentonite is added to lubricate and then jacks push the structure out across the motorway.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The clever bit is how the jacks are deployed. For Marston Box there were nine of them, each with a 1,000-tonne capacity. Each jack creates its thrust by pulling itself along a cable which runs beneath the base of the box structure in a groove cast into the guide raft, anchored into the far end of the raft. The raft is prevented from slipping itself by several 1.7m-deep spades, cast into the ground at intervals along its length.<\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1500\" height=\"844\" src=\"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited.jpg\" alt=\"Drone images of the Marston Box bridge after it was successfully installed over the M42 motorway in Warwickshire\" class=\"wp-image-10008\" srcset=\"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited.jpg 1500w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-300x169.jpg 300w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-1024x576.jpg 1024w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-768x432.jpg 768w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-286x160.jpg 286w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-474x266.jpg 474w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-1352x761.jpg 1352w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-800x450.jpg 800w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-180x101.jpg 180w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-153x86.jpg 153w, https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/marston-box-construction-hs2-vl-50987-dji_0110_web-edited-230x129.jpg 230w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><figcaption class=\"wp-element-caption\">Drone images of the Marston Box bridge after it was successfully installed over the M42 motorway in Warwickshire.<\/figcaption><\/figure>\n<\/div>\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Once the box reaches the end of the guide raft, it slides onto compacted ground. For Marston Box, the existing ground wasn\u2019t good enough which meant that 3m had to be excavated out, once the carriageway had been removed, and replacement material brought in and compacted. A dewatering system was installed across the area to lower the ground water before the guide raft could be constructed.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u201cA massive ground replacement exercise took place during the first seven-day closure over Christmas 2021,\u201d says SYSTRA\u2019s geotechnical expert, Tim Ngai. \u201cDuring that time BBV also carried out a motorway drainage diversion ready for the final bridge position.\u201d<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Understanding the ground, which is extremely weak mudstone overlain with fluvial deposits, was vital for the long-term design. One of the early challenges for SYSTRA was creating the geotechnical model with limited borehole information \u2013 and no way to do more bores through a live motorway.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Replacing the carriageway was not straightforward either since it is a concrete pavement. Reinstating a concrete pavement after each closure would not have been possible since it would not have reached sufficient strength in the timeframes. Instead SYSTRA, with input from Mott MacDonald, designed an asphalt pavement which required the creation of a special joint detail where it met the concrete pavement at either end.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The lessons learnt from the first closure enabled improvements to be made for the second one. Systra\u2019s highways team, which had been modelling traffic flows and supporting BBV to plan road closures with Staffordshire and Warwickshire County Councils and National Highways, was able to reduce diversions and closures to free up more traffic the second time.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-first-time-for-everyone\">first time for everyone<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The video demonstrates BBV\u2019s success in sequencing and logistics, showing the carefully orchestrated preparatory works completed in phases as the huge box structure advances at an average rate of 4.64m per hour. But what it can\u2019t demonstrate is the vast amounts of cooperation and coordination that took place between all the stakeholders involved in this feat.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u201cThere were many meetings and workshops to explain every aspect of the design to National Highways, HS2 and BBV,\u201d says Mills. \u201cWe had to make sure everything was signed off and assured and the right consents were in place. And we were all doing it for the first time.\u201d<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>This won\u2019t be the last time, however. HS2 has two more box slides planned: one across the rail line between Coventry and Leamington Spa this summer and another over the A46 in Kenilworth.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u201cThis has been a huge team effort, with daily challenges,\u201d says SYSTRA\u2019s HS2 engineering manager, Hani Benkhellat. \u201cWe are proud to have delivered a ground-breaking design for BBV, HS2 and UK plc.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The UK\u2019s first ever box bridge slide over a motorway, and the world\u2019s longest, ran like clockwork. We found out how.<\/p>\n","protected":false},"author":59,"featured_media":9897,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"2188,2156,2522,4799,2629,6590","_relevanssi_noindex_reason":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-9981","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classe"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>HS2 slides into the record books - SYSTRA Ireland<\/title>\n<meta name=\"description\" content=\"SYSTRA Ireland is one of the world\u2019s leading engineering and consulting groups, specialising in transportation and infrastructure solutions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HS2 slides into the record books\" \/>\n<meta property=\"og:description\" content=\"SYSTRA Ireland is one of the world\u2019s leading engineering and consulting groups, specialising in transportation and infrastructure solutions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/\" \/>\n<meta property=\"og:site_name\" content=\"SYSTRA Ireland\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-27T13:42:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-12T08:02:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"844\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"ORANGE Peter\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SYSTRA_LTD\" \/>\n<meta name=\"twitter:site\" content=\"@SYSTRA_LTD\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"ORANGE Peter\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/\"},\"author\":{\"name\":\"ORANGE Peter\",\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/#\\\/schema\\\/person\\\/fe75fd3d5fe7225408d693038516afeb\"},\"headline\":\"HS2 slides into the record books\",\"datePublished\":\"2023-05-27T13:42:52+00:00\",\"dateModified\":\"2023-10-12T08:02:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/\"},\"wordCount\":1322,\"publisher\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/wp-content\\\/uploads\\\/sites\\\/24\\\/2023\\\/06\\\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg\",\"articleSection\":[\"Non class\u00e9\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/\",\"url\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/\",\"name\":\"HS2 slides into the record books - SYSTRA Ireland\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/wp-content\\\/uploads\\\/sites\\\/24\\\/2023\\\/06\\\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg\",\"datePublished\":\"2023-05-27T13:42:52+00:00\",\"dateModified\":\"2023-10-12T08:02:21+00:00\",\"description\":\"SYSTRA Ireland is one of the world\u2019s leading engineering and consulting groups, specialising in transportation and infrastructure solutions.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/wp-content\\\/uploads\\\/sites\\\/24\\\/2023\\\/06\\\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg\",\"contentUrl\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/wp-content\\\/uploads\\\/sites\\\/24\\\/2023\\\/06\\\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg\",\"width\":1500,\"height\":844,\"caption\":\"Architect's impression of the Marston Box rail bridge over the M42\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/news\\\/hs2-slides-into-the-record-books\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"HS2 slides into the record books\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/#website\",\"url\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/\",\"name\":\"SYSTRA Ireland\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/#organization\",\"name\":\"SYSTRA Ireland\",\"url\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/wp-content\\\/uploads\\\/sites\\\/24\\\/2023\\\/07\\\/systra-logo.jpg\",\"contentUrl\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/wp-content\\\/uploads\\\/sites\\\/24\\\/2023\\\/07\\\/systra-logo.jpg\",\"width\":400,\"height\":400,\"caption\":\"SYSTRA Ireland\"},\"image\":{\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/x.com\\\/SYSTRA_LTD\",\"https:\\\/\\\/uk.linkedin.com\\\/company\\\/systra_ltd\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.systra.com\\\/ireland\\\/#\\\/schema\\\/person\\\/fe75fd3d5fe7225408d693038516afeb\",\"name\":\"ORANGE Peter\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/199495b7caee0621ae09de4d4111a7e0211f1c908fda2d2fe6a216e26bf79f88?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/199495b7caee0621ae09de4d4111a7e0211f1c908fda2d2fe6a216e26bf79f88?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/199495b7caee0621ae09de4d4111a7e0211f1c908fda2d2fe6a216e26bf79f88?s=96&d=mm&r=g\",\"caption\":\"ORANGE Peter\"},\"url\":\"https:\\\/\\\/www.systra.com\\\/ireland\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"HS2 slides into the record books - SYSTRA Ireland","description":"SYSTRA Ireland is one of the world\u2019s leading engineering and consulting groups, specialising in transportation and infrastructure solutions.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"en_GB","og_type":"article","og_title":"HS2 slides into the record books","og_description":"SYSTRA Ireland is one of the world\u2019s leading engineering and consulting groups, specialising in transportation and infrastructure solutions.","og_url":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/","og_site_name":"SYSTRA Ireland","article_published_time":"2023-05-27T13:42:52+00:00","article_modified_time":"2023-10-12T08:02:21+00:00","og_image":[{"width":1500,"height":844,"url":"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg","type":"image\/jpeg"}],"author":"ORANGE Peter","twitter_card":"summary_large_image","twitter_creator":"@SYSTRA_LTD","twitter_site":"@SYSTRA_LTD","twitter_misc":{"Written by":"ORANGE Peter","Estimated reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/#article","isPartOf":{"@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/"},"author":{"name":"ORANGE Peter","@id":"https:\/\/www.systra.com\/ireland\/#\/schema\/person\/fe75fd3d5fe7225408d693038516afeb"},"headline":"HS2 slides into the record books","datePublished":"2023-05-27T13:42:52+00:00","dateModified":"2023-10-12T08:02:21+00:00","mainEntityOfPage":{"@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/"},"wordCount":1322,"publisher":{"@id":"https:\/\/www.systra.com\/ireland\/#organization"},"image":{"@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/#primaryimage"},"thumbnailUrl":"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg","articleSection":["Non class\u00e9"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/","url":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/","name":"HS2 slides into the record books - SYSTRA Ireland","isPartOf":{"@id":"https:\/\/www.systra.com\/ireland\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/#primaryimage"},"image":{"@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/#primaryimage"},"thumbnailUrl":"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg","datePublished":"2023-05-27T13:42:52+00:00","dateModified":"2023-10-12T08:02:21+00:00","description":"SYSTRA Ireland is one of the world\u2019s leading engineering and consulting groups, specialising in transportation and infrastructure solutions.","breadcrumb":{"@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/#primaryimage","url":"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg","contentUrl":"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/06\/hs2-vl-31659-m42mar_2-m42-marston-box_web.jpg","width":1500,"height":844,"caption":"Architect's impression of the Marston Box rail bridge over the M42"},{"@type":"BreadcrumbList","@id":"https:\/\/www.systra.com\/ireland\/news\/hs2-slides-into-the-record-books\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.systra.com\/ireland\/"},{"@type":"ListItem","position":2,"name":"HS2 slides into the record books"}]},{"@type":"WebSite","@id":"https:\/\/www.systra.com\/ireland\/#website","url":"https:\/\/www.systra.com\/ireland\/","name":"SYSTRA Ireland","description":"","publisher":{"@id":"https:\/\/www.systra.com\/ireland\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.systra.com\/ireland\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.systra.com\/ireland\/#organization","name":"SYSTRA Ireland","url":"https:\/\/www.systra.com\/ireland\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.systra.com\/ireland\/#\/schema\/logo\/image\/","url":"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/07\/systra-logo.jpg","contentUrl":"https:\/\/www.systra.com\/ireland\/wp-content\/uploads\/sites\/24\/2023\/07\/systra-logo.jpg","width":400,"height":400,"caption":"SYSTRA Ireland"},"image":{"@id":"https:\/\/www.systra.com\/ireland\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/x.com\/SYSTRA_LTD","https:\/\/uk.linkedin.com\/company\/systra_ltd"]},{"@type":"Person","@id":"https:\/\/www.systra.com\/ireland\/#\/schema\/person\/fe75fd3d5fe7225408d693038516afeb","name":"ORANGE Peter","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/secure.gravatar.com\/avatar\/199495b7caee0621ae09de4d4111a7e0211f1c908fda2d2fe6a216e26bf79f88?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/199495b7caee0621ae09de4d4111a7e0211f1c908fda2d2fe6a216e26bf79f88?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/199495b7caee0621ae09de4d4111a7e0211f1c908fda2d2fe6a216e26bf79f88?s=96&d=mm&r=g","caption":"ORANGE Peter"},"url":"https:\/\/www.systra.com\/ireland"}]}},"lang":"en","translations":{"en":9981},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/posts\/9981","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/users\/59"}],"replies":[{"embeddable":true,"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/comments?post=9981"}],"version-history":[{"count":44,"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/posts\/9981\/revisions"}],"predecessor-version":[{"id":12372,"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/posts\/9981\/revisions\/12372"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/media\/9897"}],"wp:attachment":[{"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/media?parent=9981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/categories?post=9981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.systra.com\/ireland\/wp-json\/wp\/v2\/tags?post=9981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}