BA 72/03 - Standards for Highways

1 May 2003 DESIGN MANUAL FOR ROADS AND BRIDGESVOLUME 3 HIGHWAY STRUCTURES:INSPECTION ANDMAINTENANCESECTION 2 MAINTENANCEPART 3BA 72/03 maintenance OF road TUNNELSSUMMARYThis Advice Note provides guidance on proceduressuitable for the maintenance of road tunnels locatedwithin Motorways and Other Trunk Roads. It coversgeneral aspects of organisation and detailed aspects oftunnel inspection, servicing and cleaning for the tunnelstructure and its equipment. It complements therequirements of BD78 (DMRB ): Design of FOR existing Contents pages for Volume new Contents pages for Volume 3 datedMay BA 72/03 into Volume 3, Section 2, Part archive this sheet as : A quarterly index with a full set of VolumeContents Pages is available separately from TheStationery Office Ltd. BA 72/03 maintenance of road TunnelsSummary:This Advice Note provides guidance on procedures suitable for the maintenanceof road tunnels located within Motorways and Other Trunk Roads. It coversgeneral aspects of organisation and detailed aspects of tunnel inspection,servicing and cleaning for the tunnel structure and its equipment.

2 It complementsthe requirements of BD78 (DMRB ): Design of road MANUAL FOR ROADS AND BRIDGESTHE Highways AGENCYSCOTTISH EXECUTIVE DEVELOPMENT DEPARTMENTWELSH ASSEMBLY GOVERNMENTLLYWODRAETH CYNULLIAD CYMRUTHE DEPARTMENT FOR REGIONAL DEVELOPMENTNORTHERN IRELANDV olume 3 Section 2 Part 3 BA 72/03 May 2003 REGISTRATION OF AMENDMENTSA mendPage NoSignature & Date ofAmendPage NoSignature & Date ofNoincorporation ofNoincorporation ofamendmentsamendmentsRegistration of AmendmentsVolume 3 Section 2 Part 3 BA 72/03 May 2003 REGISTRATION OF AMENDMENTSA mendPage NoSignature & Date ofAmendPage NoSignature & Date ofNoincorporation ofNoincorporation ofamendmentsamendmentsRegistration of AmendmentsVOLUME 3 HIGHWAY STRUCTURES:INSPECTION ANDMAINTENANCESECTION 2 MAINTENANCEPART 3BA 72/03 maintenance OF road and and Management of and Servicing Structure Safety and Traffic Controls Monitoring and Control or EnvironmentalControl Power Building and Plant Room and Glossary of ATypical Staff Structure and ProfileAppendix BGuidance on Safety DuringMaintenance Works and InspectionsAppendix CGuidance on Health And SafetyLegislationAppendix DExamples of Detailed MaintenanceSchedules for Lighting and VentilationAppendix ETypical tunnel Closure ScheduleAppendix FGuidance On Emergency ExercisesDESIGN MANUAL FOR ROADS AND BRIDGESMay 2003 Volume 3 Section 2 Part 3 BA 72/03 May 20031/1 Chapter 1 Introduction1.

3 Document provides essential guidance forthe maintenance of Motorway and other Trunk Roadtunnels. It is intended as a tool for developing the mostappropriate and sustainable maintenance approach toany road complements the requirements of BD78/99(DMRB ): Design of road Tunnels. The adviceregarding cleaning and maintenance frequencies in thisdocument is based upon more up-to-date information. Itsupersedes advice given in Figure of BD78/99. Inpractice, for a particular tunnel , such frequencies mayneed to be reviewed based on changes to traffic levelsand seasonal variations actually of the document will be of particularinterest to the following parties during the variousstages of a tunnel s tunnel Design and Safety ConsultationGroup (TDSCG) and the Design Organisation(DO) during the planning and design of a new orrefurbished road Managing Agent (MA) and TunnelOperating Authority (TOA) responsible, orplanning to take responsibility, for a road contractors, equipmentmanufacturers and others involved in of document covers general aspects oforganisation and management of maintenance ; detailedaspects of tunnel cleaning, washing, inspection,servicing and testing of equipment, structure and otherelements of road tunnels.

4 It includes for emergencymaintenance has been written with particular reference toHighways Agency documentation and maintenancepractices. Other Overseeing Organisations should beconsulted about its application to the maintenance ofroad tunnels for which they have on typical maintenance arrangementsfor use by the TDSCG and DO during the planning anddesign of a new or refurbished tunnel is included. Thesearrangements will be expressed in maintenancestandards and set down in the tunnel documentation,covering operation, maintenance , inspection andemergency procedures. The provision of appropriatelevels of equipment, operating and maintenancearrangements and tunnel design are closelyinterdependent. Determining the optimum combinationrequires consideration of whole life costs and levels advice, such as the frequency andnature of maintenance inspections etc, is advice is intended as an initial aid to thedevelopment of the most appropriate maintenanceprocedures to suit the tunnel concerned.

5 Advicecontained in tunnel specific documentation should takeprecedence, but should be reviewed in operation (seeChapter 3). document may be used as the basis forreviewing and improving current overview of tunnel maintenance andoperation is given in Operation and maintenance ofRoad Tunnels (Ford RJ 1998). Information on the general and specific designand operational requirements for road tunnels, togetherwith details of tunnel maintenance and operationaldocumentation normally provided by the designer, maybe found in BD78 (DMRB ). Much of the detailed technical specificationrequirements for road tunnel equipment may be foundin the Standard Performance Specifications forMechanical and Electrical Installations in RoadTunnels, Movable Bridges and Bridge Access Gantries(MCHW ). A separate specification document toadvise on the specific civil engineering requirements ofroad tunnel construction and maintenance is currentlyunder Meetings of the UK road tunnel Operators Forum, organised by the Highways Agency, take placeVolume 3 Section 2 Part 3 BA 72/03 May 20031/2 Chapter 1 Introductionevery six months.

6 They provide a platform for thesharing of ideas and experiences and a valuable sourceof information and feedback on matters concerningdesign, operation and maintenance of UK road addition the forum enables attendees to participate inand benefit from international research and bestpractice work, particularly from the World RoadAssociation (PIARC) tunnel Working Information on general procedures, specificaspects of routine highway maintenance andmanagement of health and safety are provided in theHighways Agency Trunk road maintenance Manual -1999 (TRMM). Volume 2 of TRMM is in the process ofbeing revised to contain performance criteria for Standard procedures for inspection and recordsfor road tunnels are set out in BD53 (DMRB ). Additional sources of information are referred toin the text and listed in Chapter to British Standards and Any reference to a British Standard can be takento include any other International Standard or NationalStandard of another Member State of the EuropeanCommunities, which is comparable in its scope andsafety requirements to the given British This document is not intended as a legal manualand any references made to legislation are intendedonly as an indication of the possible legal should be made to the latest relevant UK andEEC legislation, ISO, BS or other EC Member States Standards and relevant Department of the Environment,Transport and the Regions documents.

7 Tolled tunnelsunder estuaries may be controlled by special legislationsuch as the Dartford-Thurrock Crossing Act The Overseeing Organisation is defined in BD53(DMRB ). The Design Organisation (DO) is defined inBD78 (DMRB ). The tunnel Design and Safety ConsultationsGroup (TDSCG) is defined in BD78 (DMRB ). The Managing Agent (MA) has replaced the roleof the Maintaining Agent. The MA is defined in BD53(DMRB ). The tunnel Operating Authority (TOA) isdefined in BD78 (DMRB ) and is the bodyresponsible for the operation, inspection andmaintenance of the tunnel , together with the necessarymaintenance plant and The Term maintenance Contractor (TMC) is thecontractor appointed by the Overseeing Organisation tocarry out all maintenance work under supervision bythe The Managing Agent Contractor (MAC) is thecontractor appointed by the Overseeing Organisationwith the combined roles of the MA and The Highways agency Value for Money Manual(VFMM) is a document providing guidance aimed atachieving better value for money in highwayprocurement and This document should be used forthwith on allschemes for the maintenance of tunnels on trunk roads,including motorways currently being prepared,provided that, in the opinion of the OverseeingOrganisation this would not result in significantadditional expense or delay progress.

8 MAs shouldconfirm its application to particular schemes with theOverseeing 3 Section 2 Part 3 BA 72/03 May 20032/1 Chapter 2 Roles and Responsibilities2. ROLES AND Chapter summarises the main roles andresponsibilities of the various stakeholders in thedelivery of safe and effective tunnel maintenance . Seealso BD78 (DMRB )Overseeing Overseeing Organisation is responsible that a TDSCG is established during theplanning and design of a new or refurbishedtunnel, and agreeing its terms of reference; the maintenance of the tunnel throughthe appointment of competent experienced MAsand TMCS with adequate funding and Design and Safety Consultation Group(TDSCG) TDSCG should comprise appropriate levelsof representation from the Overseeing Organisation,DO, Police or other control authority, emergencyservices and the MA. It is responsible the design requirements; Standards of safety, quality andeconomy; basic operation, maintenance andemergency Organisation (DO) DO is, in consultation with the TDSCG,responsible procedures for tunnel commissioning,acceptance inspection and handover; all tunnel documentation needed forthe effective handover of the tunnel to the TOAas described in BD53 (DMRB ), BD78(DMRB ) and MCH that in the case of mechanical and electrical(M&E) plant and systems, much of the detailed designsmay be carried out by the manufacturer who mayspecify particular future maintenance and operationalrequirements.

9 See BD78 (DMRB ).Managing Agent (MA), tunnel Operating Authority(TOA) MA is responsible the TOA (or carrying out thisfunction within its own organisation); a maintenance agreement with theTMC; tunnel maintenance to standardsnormally established in service level agreementsand tunnel documentation. Developing,implementing and periodically reviewingmaintenance strategies to meet these BD78 (DMRB ); tunnel operations; advice and assistance to the police andother emergency services. See BD78 ( ). operating staff of the prospective MA/TOA should be appointed early in the mobilisationprocess and should participate in the TDSCG andVFMM procedures. All aspects of future maintenance ,including funding and organisation, should beaddressed during the planning and design stages of anew or refurbished tunnel . Key decisions affectingmaintenance should be approved by the MA/TOA is required briefs and agree budgets for routinemaintenance works with OverseeingOrganisation; and prioritise as necessary, detailedrecommendations for proposed remedial,refurbishment or contingency expenditure;Volume 3 Section 2 Part 3 BA 72/03 May 20032/2 Chapter 2 Roles and with the Overseeing Organisation on futurework programmes, preparing contracts,supervising works, etc as required; , monitor and supervise the work of theTMC, checking that competent and suitablytrained personnel are used at all times; regular inspections and surveys, inaccordance with HA Standards , and takeappropriate urgent action if anything which posesan immediate safety threat to road users orpersonnel involved in the maintenance andoperation of the tunnel is discovered; out regular comprehensive exercises andrisk assessment to identify and manage allpossible hazards of tunnel maintenance andoperation.

10 Thereafter develop and/or maintain,through agreement with OverseeingOrganisation, TMC and the emergency services,appropriate contingency arrangements; with emergency services regarding regulardrills and exercises, and ensure they are familiarwith tunnel equipment and its operation. SeeAppendix F for guidance on emergencyexercises;viii. ensure a complete and up to date set of tunneldocumentation, including the Health and Safetyfile, emergency procedures, operating manuals,etc is available at all times; records of all tunnel maintenance proposals,reports, activities, certificates, etc; the Health and Safety Executive ofrelevant safety delegations and appointments andcorrespond as necessary to comply withRegulations (see Chapter 3); effective and regular communicationswith emergency services, ensuring all partieshave up to date information, relevant telephonecontact numbers, etc; training of staff to ensure their safetyand levels of competency. For appropriate staff,this should include maintaining currency withbest international practice, developments andthinking through attending UK road TunnelOperation Forums, etc;xiii.