[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-650438-105":59,"doc-detail-650438-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","cd-377-dmrb-cd-377-requirements-for-road-restraint-systems","CD 377 - DMRB CD 377 - Requirements for Road Restraint Systems","","Design Manual for Roads and Bridges DMRB CD 377 sets out requirements for permanent and temporary safety barriers and related highway restraint provisions. It specifies minimum containment levels, impact severity level, normalised working width and vehicle intrusion classes, length of need, and siting parameters such as set-back. The manual covers vehicle parapets, terminals, transitions, crash cushions, pedestrian restraint and protection, arrester beds, anti-glare systems, cattle grids, drainage and kerbs, motorcyclist considerations, and passively safe road furniture at multiple infrastructure locations.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/cd-377-dmrb-cd-377-requirements-for-road-restraint-systems/650438/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/cd-377-dmrb-cd-377-requirements-for-road-restraint-systems/650438.png","ImageObject",300,407,{"name":92,"@type":93},"Jiven","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What types of highway safety restraint systems are specified in CD 377?","Question",{"text":112,"@type":113},"CD 377 covers permanent and temporary safety barriers, vehicle parapets, terminals, transitions, crash cushions, pedestrian restraint and protection, arrester beds, anti-glare systems, and cattle grids.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which technical parameters are required for safety barriers and parapets?",{"text":117,"@type":113},"The document specifies minimum containment levels, impact severity levels, normalised working width classes and vehicle intrusion classes, length of need, and siting parameters such as set-back, along with related general requirements.",{"name":119,"@type":110,"acceptedAnswer":120},"Where can alternative or supplementary requirements for Overseeing Organisations be found?",{"text":121,"@type":113},"Any specific alternative or supplementary requirements for Overseeing Organisations are provided in National Application Annexes to the document.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},650438,1792857285,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},1099513958607,"https://ap-avatar.wpscdn.com/avatar/100002390cf8733938c?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778829742770036399","Design Manual for Roads and Bridges  \nHighway Structures & Bridges Design  \nCD 377  \nRequirements for road restraint systems  \n(formerly TD 19/06)  \nRevision 4  \nSummary  \nThis document details the requirements for permanent and temporary safety barriers, vehicle parapets, terminals, transitions, crash cushions, pedestrian parapets, pedestrian guardrails and pedestrian restraint and protection, vehicle arrester beds, anti-glare systems and cattle grids.  \nApplication by Overseeing Organisations  \nAny specific requirements for Overseeing Organisations alternative or supplementary to those given in this document are given in National Application Annexes to this document.  \nFeedback and Enquiries  \nUsers of this document are encouraged to raise any enquiries and/or provide feedback on the content and usage of this document to the dedicated Highways England team. The email address for all enquiries and feedback is: [Standards_Enquiries@highwaysengland.co.uk](Standards_Enquiries@highwaysengland.co.uk)  \nThis is a controlled document.  \nContents  \nRelease notes 4  \nForeword 5  \nPublishing information ................................................ 5  \nContractual and legal considerations ........................................ 5  \nIntroduction 6  \nBackground ...................................................... 6  \nAssumptions made in the preparation of this document ............................. 6  \nMutual Recognition .................................................. 6  \nAbbreviations and symbols 7  \nTerms and definitions 8  \n1. Scope 14  \nAspects covered ................................................... 14  \nImplementation and application ........................................... 14  \nUse of GG 101 .................................................... 15  \n2. General requirements 16  \nRisk assessment and hazard mitigation ...................................... 16  \nInformation to be provided and/or specified .................................... 17  \n3. Requirements for permanent safety barriers 18  \nMinimum containment levels ............................................ 18  \nImpact severity level ................................................. 19  \nNormalised working width classes and normalised vehicle intrusion classes .................. 19  \nLength of need .................................................... 19  \nSet-back ....................................................... 19  \nGeneral requirements ................................................ 22  \nDrainage and kerbs .............................................. 24  \nMotorcyclists .................................................. 24  \nOther factors .................................................. 24  \nPassively safe road furniture and equipment, and vehicle restraint systems .................. 25  \nSafety barrier provision at structural supports ................................... 25  \nSafety barrier provision at vehicle parapets .................................... 28  \nSafety barrier provision at gantries ......................................... 29  \nVulnerable users ................................................... 29  \nSafety barrier provision at nosing areas and junctions .............................. 32  \nSafety barrier provision in central reserves-general ............................... 34  \nRequirements for gaps in the central reserve ................................... 34  \nGeneral requirements for an emergency crossing point/maintenance crossing point (ECP/MCP) ... 35  \nUse of gates at an ECP/MCP ......................................... 35  \nUse of demountable permanent barrier at an MCP ............................. 35  \nAdditional requirements for \"open\" ECPs .................................. 36  \nAdditional requirements for maintenance crossing points and maintenance access ........... 38  \nWinter maintenance crossing points (WMCP) ................................ 38  \nOther gaps in the central reserve, and provision at start and end poin","cbCaimpno70dRNGU","https://ap.wps.com/l/cbCaimpno70dRNGU","pdf",1896679,133,"English","# Release notes\n# Foreword\n## Publishing information\n## Contractual and legal considerations\n# Introduction\n## Background\n## Assumptions made in the preparation of this document\n## Mutual Recognition\n## Abbreviations and symbols\n# 1. Scope\n## Aspects covered\n## Implementation and application\n## Use of GG 101\n# 2. General requirements\n## Risk assessment and hazard mitigation\n## Information to be provided and/or specified\n# 3. Requirements for permanent safety barriers\n## Minimum containment levels\n## Impact severity level\n## Normalised working width classes and normalised vehicle intrusion classes\n## Length of need\n## Set-back\n## General requirements\n## Drainage and kerbs\n## Passively safe road furniture and equipment, and vehicle restraint systems\n# 4. Requirements for vehicle parapets\n## Minimum containment levels\n## Impact severity level\n## Normalised working width class and normalised vehicle intrusion class\n## Length of need\n## Minimum height of parapets\n## General requirements\n## Design requirements for parapets and supporting structures","[{\"question\":\"What types of highway safety restraint systems are specified in CD 377?\",\"answer\":\"CD 377 covers permanent and temporary safety barriers, vehicle parapets, terminals, transitions, crash cushions, pedestrian restraint and protection, arrester beds, anti-glare systems, and cattle grids.\"},{\"question\":\"Which technical parameters are required for safety barriers and parapets?\",\"answer\":\"The document specifies minimum containment levels, impact severity levels, normalised working width classes and vehicle intrusion classes, length of need, and siting parameters such as set-back, along with related general requirements.\"},{\"question\":\"Where can alternative or supplementary requirements for Overseeing Organisations be found?\",\"answer\":\"Any specific alternative or supplementary requirements for Overseeing Organisations are provided in National Application Annexes to the document.\"}]","CD 377 - DMRB CD 377 - Requirements for Road Restraint Systems | PDF",1792827967,335]