ENGINEERING PROCEDURE DISPENSATION FOR INFRASTRUCTURE DRAWINGS

Transcription

1 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 Apprval Amendment Recrd Apprval Date Versin Descriptin 01/08/ Initial Issue under MTM. Supersedes PTV DMS Dispensatin Prcess & L1-CHE-INS-002 Dispensatin fr Signalling s (Design Practice Nte). Rev 1 cvers signalling dispensatin nly; Rev 2 t be develped t cver ther disciplines. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 1 f 17

2 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 External Distributin List: Name Psitin Organisatin Len Neist Chief Engineer Public Transprt Victria Aidan Wright Steven Perks Cassie Khaw Jim Hunter Steve Petzierides Daniel Cullen Jeremy Rae Alex Rbinsn General Manager, Asset Perfrmance Principal Engineer Signalling Cnfiguratin Manager General Manager, Netwrk Engineering Prgram Manager, Signalling Track & Pwer Engineering Directr Manager Prgram Engineering Engineering Manager Public Transprt Victria Public Transprt Victria Public Transprt Victria VLine VicTrack Melburne Metr Rail Authrity Level Crssing Remval Authrity Evlutin Rail Nte: This prcedure has been prepared in cnsultatin with PTV and V/Line, and been reviewed by the relevant stakehlders. In this regard, PTV issued a cmmunicatin nte (attachment t dated 22 August 2017) regarding submissin f dispensatin requests t ARTO Chief Engineer Office, supprted by drawing dispensatin argument, fr acceptance. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 2 f 17

3 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 Table f Cntents 1. Purpse Scpe Abbreviatins and Acrnyms Definitins Guiding Principles Prcess Dispensatin Types Respnsibilities Exclusins Related Dcuments Appendix A Dispensatin Type A: N New Design Wrk Occurring On Appendix B - Dispensatin Type B: New Design Wrk Occurring On Appendix C Definitin Detailed Clarificatin Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 3 f 17

4 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August Purpse This dcument details Metr Trains Melburne s (MTM) prcess fr submitting dispensatin requests fr drawings where there is justificatin t nt cmply with Public Transprt Victria s (PTV) Management System (DMS) requirements. The dcument clarifies the definitin f cmpliant and nn-cmpliant drawing frm the DMS drafting perspective and when a dispensatin shall be necessary fr acceptance f a drawing int the DMS. While there is a requirement t prepare DMS cmpliant drawings fr all wrks, the dispensatin prcess has been intrduced t recgnise that there are sme cases where the practicability f bringing existing nn-cmpliant drawings t standard utweighs the benefit. 2. Scpe The prcedure applies t all As-In-Service (AIS) drawings that are bked back int the PTV DMS. This dcument prvides guidance n the dispensatin rules t signalling drawings with all ther disciplines t be cnsidered in a future update t this dcument. In the meantime, the principles described in this dcument will als be applicable fr reviewing dispensatins fr ther disciplines. 3. Abbreviatins and Acrnyms AIS As In-Service ARTO Accredited Rail Transprt Operatr BIF Bk in Frm BP Bnding Plan DMS Management System MTM Metr Trains Melburne OCE Office f the Chief Engineer PTV Public Transprt Victria SAP Signalling Arrangement Plan SFAIRP S Far As Is Reasnably Practicable VRIOGS Victrian Rail Industry Operatr Grup Standards Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 4 f 17

5 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August Definitins As-In-Service r As-Built Cmpnent Replacement Crrelatin Cmpliant Certificatin Dispensatin Assurance Argument Nn-Cmpliant Shall Shuld As-in-Service drawings reflect what has been cnstructed and/r installed in the field at the time f certificatin fr DMS bk in. The terms As-in-Service (AIS) and As-built are used interchangeably thrughut the rail industry. Cmpnent Replacement refers t a type f wrk that des nt result in a change t the functinality and/r integrity f the system. Such wrks may include like-fr-like cmpnent replacement (as defined in L1-CHE-INS-071). Crrelatin is the prcess f checking the drawing against the infrastructure site t ensure it accurately reflects what exists in the field. A drawing that cnfrms t the requirements f the apprpriate versin f PTV Infrastructure Drafting Standards r the legacy VRIOGS DMS standards as applicable. The prcess f assuring that the AIS drawing accurately reflects what have been cnstructed and/r installed in the field as far as the changes are cncerned, and fr the remaining prtins, the cntents f the previus drawing have been shwn/re-drawn accurately. An argument prviding assurance which demnstrates that the risks assciated with the nn-cmpliant drawing have been managed S Far As Is Reasnably Practicable (SFAIRP). A drawing that des nt cmply t the relevant PTV Infrastructure Drafting Standard. Is used as the descriptive wrd t express a requirement that is mandatry t achieve cnfrmance. Is used as the descriptive wrd t express a requirement that is recmmended in rder t achieve cmpliance but nt a mandatry requirement. Nte: Fr further detailed clarificatin n these definitins refer t Appendix C. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 5 f 17

6 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August Guiding Principles The PTV Infrastructure Drafting Standards (frmerly knwn as VRIOGS 007.2) defines the standards required fr a Cmpliant. All AIS drawings are required t be bked int the DMS, fully cmpliant t the PTV Infrastructure Drafting Standard r the standard applicable when the drawing was created. Dispensatins shall nly be cnsidered when there is sufficient justificatin and assurance that the verall functinality f the circuit, system r netwrk is nt cmprmised and risk has been managed SFAIRP by the nn-cmpliant drawing being submitted fr bk-in. Dispensatin requests shall nly be cnsidered, if applied, during the design phase. Dispensatin Requests submitted after IFC, nt related t updates t references cvered under Dispensatin Type A (refer Appendix A), shall require special apprval by the MTM Chief Engineer in cnsultatin with PTV. The designer shall develp cmpliant AIS drawings in rder t manage SFAIRP safety risks assciated with nn-cmpliant drawings. When the designer identifies drawings that are prpsed t be submitted as nncmpliant, the designer shall request a drawing dispensatin. This request shall be submitted as sn as the designer becmes aware that a dispensatin may be required, within either the develpment r design phase. All dispensatin requests shall be supprted by a Dispensatin Assurance Argument which demnstrates that the risks assciated with the drawings remaining nncmpliant have been managed SFAIRP. The Dispensatin Assurance Argument shall ensure that, by the drawing remaining nn-cmpliant, risks t the peratinal netwrk, maintainer and future designers have been managed SFAIRP. The Dispensatin Assurance Argument is t be cmpleted within the dispensatin request frm (L4-CHE-FOR-075) with any additinal supprting dcumentatin attached. The request fr dispensatins shall be reviewed by the Office f the Chief Engineer (OCE) and apprved nly when there is sufficient justificatin. It shall be evaluated based upn the fllwing: The level f risk that exists r that is intrduced against the level f effrt and cst required t meet cmpliance; r That it is risk prhibitive t make the drawing cmpliant. PTV may cnduct audits f the prcess based n dispensatin reviews carried ut within a specified timeframe. Cnsultants and cntractrs wh undertake design shall endeavur t meet the DMS drawing standard and ensure that they have accunted fr the wrk in terms f prject prgram and budgeting. Stringent review and apprval criteria apply. Dispensatins will nt be granted purely n the basis f cntractual agreements, prgram r financial grunds. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 6 f 17

7 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August Prcess Requests fr Dispensatin shall be submitted as per the flwchart belw. Start (Fllw During Design Phase) DRAWING DISPENSATION REQUEST PROCESS Dispensatin Identificatin & Preparatin Phase (By Designer) Is the (s) New r Currently Existing n PTV DMS System? New Designer t Create New Cmpliant Existing Is the Existing (s) DMS Cmpliant r Nn- Cmpliant? Cmpliant Designer t Ensure Updated (s) is fully Cmpliant Nn-Cmpliant Shuld the (s) be updated and made Cmpliant? Yes Designer t Ensure Updated (s) is fully Cmpliant N Designer t Prepare Dispensatin Assurance Argument Yes Designer t Prepare Mark- Up (s) N Dispensatin Review & Apprval Phase (By OCE) Ensure Dispensatin Request is raised based n the Guidelines (use Frm L4-CHE-FOR-075) Via PM / IM Submit t OCE t seek Apprval OCE t review Dispensatin Request based n Dispensatin Types, Assurance Argument, Justificatins & Mark Ups Submitted OCE t Send Ntificatin f Dispensatin Request Outcme Is the Designer Required t Re-Assess the Dispensatin Request and Re-Submit* Submit As-Built (s) t OCE fr Review (with Dispensatin Apprval Ntificatin fr reference where applicable) *Dispensatin Requests that fail t get accepted by the OCE are t be made fully DMS cmpliant r else Re- Assessed and Re-submitted with further Evaluatin if directed by Engineering Was the Dispensatin Request Apprved r Rejected? Rejected Accepted? Rejected Designer t revise drawing based n Cmments & Directins PTV t cmment (if any) within 10 days Apprved Ensure revised prtins f (s) are Cmpliant and clearly capture in Ntes t distinguish between Cmpliant and Nn Cmpliant prtins fr rerefence by future designers Accepted Bk In t PTV DMS Fllw usual As Built Review Prcess. (fr All s) Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 7 f 17

8 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 Designers shall request dispensatin in line with the fllwing requirements: Requests shuld be made as early as pssible, but prir t the detailed design phase, r final design phase, when there is exemptin frm prviding a detailed design. Requests shall be against ne f the dispensatin types listed within this dcument. A Dispensatin Assurance Argument shall be supplied by the designer and shall include justificatins fr the drawings t remain nn-cmpliant r partially nncmpliant in accrdance with the SFAIRP principle. Design drawings mark-up f the design changes shall be attached (yellw and red drawings fr signalling designs) t the request. A drawing dispensatin request frm (L4-CHE-FOR-075) shall be cmpleted and include all f the abve required infrmatin fr review and apprval. Dispensatin requests shall be sent t EDRG.DMS@metrtrains.cm.au via the ARTO Prject Manager r Interface Manager. The OCE shall review the request in-line with the fllwing requirements: Requests shall be reviewed t ensure all dispensatin requirements have been satisfied. Requests shall be reviewed against the dispensatin types listed within this dcument s lng as the underlying risks have been demnstrated t be managed within the SFAIRP principle. Dispensatin requests shall be reviewed by the OCE within 10 business days f submissin, hwever dispensatin apprval may take lnger fr cmplex requests that require cnsultatin with PTV. The applicant will be ntified f the review cmpletin timeframe when it takes lnger than the stipulated timeframe. The utcme f the dispensatin shall be dcumented int the drawing dispensatin request frm (L4-CHE-FOR-075). Where the OCE has queries abut the dispensatin request, they shall cnsult with PTV prir t any apprval being given. Apprved dispensatins shall be submitted t PTV fr audit. OCE apprved dispensatins shall be cmmunicated t the requestr in parallel with the submissin t PTV. Nte: 1) PTV has the ability t prvide cmments in regards t an apprved dispensatin within 10 days f apprval. MTM will infrm the designer that the dispensatin request is t be re-visited if cmments have been received frm PTV. The OCE shall re-visit the request within 2 business days. Designers shall be respnsible fr cmplying with any amendment t the dispensatin apprval arising frm the PTV audit utcme. 2) If the cntext f the dispensatin changes such that it des nt meet the riginal criteria fr which it was apprved (e.g. changes in drawing dispensatin argument, increase in the scpe f design n the drawings apprved within the dispensatin t such an extent that it vids the dispensatin argument, multiple dispensatin requests n the same drawing that prevent the pprtunity fr making the drawing cmpliant at sme stage, etc.) between the time f apprval and the submissin f drawings fr DMS bk in, the OCE reserves the right t reverse the decisin and withdraw the dispensatin and subsequently review all dispensatins granted fr the prject. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 8 f 17

9 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 PTV may cnduct an audit in line with the fllwing requirements: Ensure that all the requirements f the designer and MTM have been adhered t. Review that the dispensatins have been granted in accrdance with the dispensatin types listed within this dcument. Nte: Audits can als be cnducted by PTV thrughut the cycle f the prject until the final submissin f drawings t DMS in the cntext f the dispensatin changes (as stated in the MTM dispensatin review prcess in Nte 2 abve), dispensatin requests, designer and ARTO assessment prcess. 7. Dispensatin Types Dispensatin Requests shall be submitted under ne f the fllwing classificatin Types: Dispensatin Categry Type A (A1 and A2) Type B (B1, B2, B3 and B4) Descriptin N New Design Wrk Occurring n New Design Wrk Occurring n Reference Refer Appendix A fr details Refer Appendix B fr details 8. Respnsibilities The MTM Prject Manager (Interface Manager in the case f an Alliance) is respnsible fr: Understanding the dispensatin prcess and managing external and internal parties t ensure that AIS drawings are crrectly bked back int the DMS Ensuring that dispensatin prcess is adhered t by designers (bth in-huse and external t the ARTO) Ensuring that all drawings and new drawing numbers bked ut frm the DMS are bked back int the DMS fr clse-ut The designer is respnsible fr: Submitting a dispensatin in line with the requirements f this prcedure Cmpleting the Dispensatin Assurance Argument Crrelatin f drawings (bth cmpliant & nn-cmpliant) prir t perfrming any design as per MTM Design and Review requirement The ARTO OCE is respnsible fr: Reviewing the Dispensatin Assurance Argument Apprving/Rejecting dispensatins in line with the requirements f this prcedure Cnsulting PTV where required if in dubt f the validity f a dispensatin request Peridic review and update f this prcedure, including cnsultatin with PTV Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 9 f 17

10 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 PTV is respnsible fr: Perfrming audits f dispensatin request and dispensatin prcess Review and cmment n updates t the dispensatin prcess Prpse updates t the dispensatin prcess Further clarificatin t the prcess can be btained frm the ARTO OCE. 9. Exclusins Dispensatins shall nt be cnsidered r applicable t the fllwing situatins: a. If the drawing is cmpliant as defined in this dcument, whether r nt taken ut f the DMS Cmpliant r Nn-Cmpliant vault, all updates shall be reflected in a cmpliant manner and bked back int the DMS Cmpliant vault. b. s cmpliant t a legacy drafting standard (i.e. VRIOGS 007.2) shall be updated keeping t drafting standard at the time f the drawing creatin r later, whichever is apprpriate. The drawing shall be bked int the Cmpliant vault and n dispensatin will be needed in such circumstances. c. If new equipment r terminals are intrduced within a lcatin bx, the entire bx layut drawing shall be redrawn, including the cntact analysis, and crrelated t the extent f the prject mdificatin/installatin. These drawings shall be fully cmpliant. N dispensatin shall be granted if there is a change in the lcatin layut. Fr layut f apparatus, terminatins and cntact analysis drawings, it is expected that the fllwing will be cmpleted as a minimum: Full wire cunt/null cunt and layut check. Equipment psitin t be crrelated. Any incnsistencies fund that relate t the circuits (e.g. new wire cunt des nt match actual circuit drawing) shall be flagged with a nte and d nt require further investigatin unless related t the wrks being undertaken r deemed as safety critical. These shall be brught t the attentin f the OCE. Nte t be added if functin and sheet reference is nt crrelated. 10. Related Dcuments PTV Infrastructure Drafting Standards PTV DMS Prcesses VRIOGS Infrastructure Standards L4-CHE-FOR-075 Dispensatin Request Frm L1-CHE-INS-071 Design Practice Nte - Like Fr Like Wrks Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 10 f 17

11 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August Appendix A Dispensatin Type A: N New Design Wrk Occurring On Type A1: Update t references nly A dispensatin under Type A1 may be granted where the existing Nn-Cmpliant drawing requires nly ther drawing reference numbers r asset names t be changed. The revisin histry and revisin letter shall be updated, as apprpriate. The drawing shall be submitted t the Nn-Cmpliant vault and indicated as Revised in the Bk in Frm (BIF). Type A2: Crrectin f incnsistencies/errrs A dispensatin under Type A2 may be granted where the existing Nn-Cmpliant drawing requires amendments nly t reflect crrectins identified during ther design, maintenance r crrelatin activities. changes shall be limited t the crrectin f incnsistencies/errrs identified n existing Nn-Cmpliant drawings and plans during the design, maintenance r crrelatin prcess r frm marked up field drawings, fr dispensatins t be granted. The revisin histry and revisin letter shall be updated, as apprpriate. The drawing shall be submitted t the Nn-Cmpliant vault and indicated as Revised in the BIF. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 11 f 17

12 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August Appendix B - Dispensatin Type B: New Design Wrk Occurring On Type B1: Minr wrks where the functinal change des nt require any verificatin r cnfiguratin t ccur. A dispensatin under Type B1 may be granted where minr wrks that d nt result in a functinal change, as determined by the OCE, have been undertaken n drawings cvering a large gegraphical area such as signalling arrangement, bnding plans, cable running plan, territry plans etc. The designer shall als demnstrate that the drawings cannt be made cmpliant in a practical manner. Examples f this include: Alteratins t cable running plan, signalling arrangement plan and/r bnding plan t reflect change f: transfrmers, pint machine type, signal cnversin frm incandescent t LED r intrductin f bms gates and/r lights; Maintenance wrks recrded with in-field drawing mark ups fr any signalling drawings; Planned maintenance and renewal wrks resulting in cmpnent replacement fr any signalling drawings. If the functinal change des require verificatin f the signalling circuits then the drawing shall be redrawn t PTV Infrastructure Drafting Standards. If the drawing has been re-drawn t PTV Infrastructure Drafting Standards but has nt been fully crrelated against the field install, a nte at the bttm f the drawing shall read: "REDRAWN, SUPERSEDES DRAWING N. ### REV X. - DATED DD/MM/YY, DRAWING IS NOT FULLY CORRELATED." The drawing shall be submitted t the Cmpliant vault and shwn as revised in the BIF. If the drawing has nt been re-drawn t PTV Infrastructure Drafting Standards, the drawing shall be submitted t the Nn-Cmpliant vault and shwn as revised in the BIF. Fr the last update, the revisin blck and revisin letter shall be updated, as apprpriate, in bth instances. Type B2: s nt fully crrelated and retain as nn-cmpliant. Due t the cmplexity, invlving large area and the risk with crrelating existing running assets, the fllwing specific cases where drawings may nt be fully crrelated and retain as nn-cmpliant and dispensatin may be granted: a. Fr territry plan and cable running plan cver large signalling areas and, due t the age f the assciated cmpnents r cables, there is a significant risk in crrelating the assets ver such a large regin. It is highly recmmended that crrelatin be undertaken nly fr the purpse f the prject mdificatin/installatin where necessary. The existing nn-cmpliant territry plan and cable running plan may be updated in the fllwing way: Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 12 f 17

13 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 Where a minr functinal change ccurs in ne r multiple lcatins, a dispensatin under Type B2 may be granted. Territry plan and cable running plan drawings (lng plts) can be updated and retained as nn-cmpliant. Fr the last update, the revisin blck and revisin letter shall be updated, as apprpriate. The drawing shall be submitted t the Nn-Cmpliant vault and bked in as revised in the BIF. Where a majr functinal change ccurs, a dispensatin under Type B2 may be granted where independent circuits r independent cable running have been mdified frm the nn-cmpliant drawing and all the cntents f the affected lcatins shall be made CAD cmpliant nt new A3 drawing(s). Nte 1: Lcatin refers t a defined bundary within the territry plan which is cmmnly knwn as a panel. Nte 2: The mdified prtins/circuits f the newly created A3 drawing(s) are t be fully crrelated. Nte 3: Infrmatin relating t bnding, cable running and signalling pwer shall be transferred t the relevant existing DMS drawings if available. Otherwise this infrmatin may be retained within the territry plan. Example: Territry Plan, The riginal territry plan may be maintained with the re-drawn prtins f Lcatin(s) remved with apprpriate crss referencing t the re-drawn A3 (s). It shall be nted that the crrelated circuit(s) alng with all ther circuits and assets within the jurisdictin f the Lcatin shall be re-drawn nt ne r multiple A3 drawings. Only the unaffected Lcatins f the territry plan shall remain in the riginal lng plt drawing. Where the territry plan has majr alteratins, the prject and/r design rganisatin shall re-draw the whle territry plan and cmply with the PTV Infrastructure Drafting Standard. This shall be at the discretin f the OCE and PTV. b. Fr nn-cmpliant cntrl table / release table / lcking table cntaining a number f independent signals r pint cntrl (n a single sheet) but the mdificatin nly affects minr prtin(s) f the cntrl table, the fllwing shall apply. Affected signals r pint cntrl shall be remved frm existing nn-cmpliant table and redrawn nt current cntrl table frmat as new cmpliant drawing(s) and remaining prtins f the cntrl table may be retained n the existing nncmpliant drawing(s). The remved prtins f the cntrl table frm the existing drawing shall be crssed-ut. Crss referencing frm the new cmpliant drawings back t the riginal nncmpliant drawing shall als be prvided. The new cmpliant drawing shall have a nte at the bttm f the drawing shall read: "REDRAWN & REVISED. PART SUPERSEDES DRAWING N. XYZ. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 13 f 17

14 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 A dispensatin under Categry B2 may be granted t retain nn-cmpliant drawing fr such cases. In the case where cntrl table is in a recent frmat (nt necessarily latest), OCE can agree that the cntrl table can be updated in the standard when cntrl table was created, prvided it is demnstrated that the practicability f bringing drawing t current standard utweighs the benefit and the risk is managed SFAIRP. c. Fr relay rm where new equipment r terminal(s) intrduced, the extent f crrelatins required shall be determined in cnsultatin with the OCE as part f design review prcess, as due cnsideratin will have t be given fr excessive wrk. The fllwing shall apply. An entire relay rm is nt required t have a full wire cunt, nly the rack assciated with the wrks will be crrelated) and fr circumstances where it is nt pssible/advisable t disturb wires (e.g. plug cupler f SSI mdule r lcatins where ld/delicate wiring shuld nt be tuched). Fr such drawings where dispensatin may be deemed necessary, a dispensatin under Categry B2 may be granted t retain nn-cmpliant drawing fr such cases. Type B3: Gegraphic mdule drawing nt fully crrelated and retained as nn-cmpliant. A dispensatin under Type B3 may be granted fr gegraphic mdule drawings. Due t the age f the assciated cmpnents, there is a significant risk with crrelating these assets. Thus, it is recmmended that crrelatin be undertaken nly fr the purpse f the prject mdificatin/installatin. Where necessary, the gegraphic drawing will be retained as nn-cmpliant. Fr the last update, the revisin blck and revisin letter shall be updated, as apprpriate. The drawing shall be submitted t the Nn-Cmpliant vault and bked in as revised in the BIF. Type B4: Lng plt signalling arrangement plans and bnding plans nt fully crrelated and retained as nn-cmpliant while new lng plt and A3 sheets view are created fully cmpliant fr the entire area cvered by PTV s master index drawing(s) Signalling Arrangement Plans (SAP) and Bnding Plans (BP) (lng plts), that include a functinal change shall be re-drawn fully cmpliant with PTV s Infrastructure Drafting Standard. This shall include all affected cntents and assets spanning up t the bundaries f the assciated PTV master index drawing. All the affected circuits f the new design and circuits assciated with their functinality shall be fully crrelated. The re-drawn SAP and BP lng plt in additin t the A3 sheets view shall be treated as cmpliant drawings and shall be bked int the cmpliant vault. It shall als be reflected as new in the BIF as it pssesses a new drawing number. All areas utside the affected master index drawing bundary may remain as they are n the riginal SAP/BP (lng plts) with the re-drawn prtins remved with apprpriate crss referencing t the re-drawn lng plt and A3 sheets view. It shall be nted that the crrelated circuit(s) alng with all ther circuits and assets within the jurisdictin f the master index drawing, shall be re-drawn n the lng plt and A3 sheets view. Curves, gradients and assets lcatin in the unaffected areas f the design can be fund frm the PASS Asset system. Infrmatin nt available frm PASS Asset system in the unaffected areas f the design can be left ut t be addressed by future prjects. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 14 f 17

15 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 The lng plt and A3 sheets view shall include ntes t clearly indicate which circuits have been crrelated. The certified PDF cpy f the A3 sheets view shall include cluds arund the prtins f the drawing cntent that were mdified and crrelated. Dispensatin request under Type B4 shall be raised fr the existing lng plt SAP and BP that remain nn-cmpliant. A dispensatin under Type B4 shall als be raised when a re-drawn SAP r BP lng plt is mre than 3m lng r mre than 7 sheets r fr clarity requires drawing size mre than A3 but it matches against PTV s master index plan bundaries. The fllwing shall apply as the lng plts are prgressively mdified and cnverted t A3 s: If nt already n cmpliant A3 drawings, the designer shall mve all cntent assciated with the master index drawing bundary nt a new lng plt and A3 sheets (r apprpriate apprved size) as per PTV s Infrastructure drafting standards when they undertake any wrk within a jurisdictin. The newly created lng plt and A3 sheets view shall be made cmpliant. Dispensatin may be cnsidered fr minr design changes. This will be by exceptin nly and the designer shall cnsult the ARTO OCE prir t raising such dispensatin requests. Dispensatin will be cnsidered fr cmpnent changes and infrastructure maintenance and renewal type f wrks as stipulated in this prcedure. The designer respnsible fr cnverting the remaining part f the lng plt drawing shall supersede the existing lng plt drawing accrdingly. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 15 f 17

16 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August Appendix C Definitin Detailed Clarificatin As-In-Service r As-Built Cmpnent Replacement Crrelatin In the case f new drawings, the designer and certifier are respnsible t Ensure certified drawings are accurate representatin f the actual as in service cnditin in the field. In the case f a mdified cmpliant drawings, the designer and certifier are respnsible t Ensure the updated prtins f the certified drawing have been crrelated n site and reflect what exists in the field; and That n change has been made t the rest f the cmpliant drawing. When an existing nn-cmpliant drawing is redrawn t PTV Infrastructure Drafting Standards the designer and certifier are respnsible t Ensure the updated prtins f the drawing are crrelated n site t accurately reflect what exists in the field; and The remainder f the drawing has been checked t ensure it has been accurately redrawn t reflect the existing DMS drawing. Cmpnent Replacement may include planned maintenance and renewal wrks such as replacement f pint machines; replacement f track circuits; cnversin f signal head frm incandescent t LED type; replacement f ld style mechanical train-stp t new style; replacement f ld style bm mechanism t new style; replacement f battery charger r pwer supply r UPS; and/r replacement f timer. Crrelatin shall be undertaken fr relevant prtins f the drawings (bth cmpliant & nn-cmpliant) bked ut frm the DMS befre any design r validatin prcess is carried ut. The prtins f the drawings that require crrelatin, in rder t cnfirm the functinality and integrity f the signalling safety and maintainability, is at the discretin f the designer, checker, reviewer and tester. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 16 f 17

17 L1-CHE-PRO-036 Versin: 1 Effective frm: 1 st August 2017 Cmpliant Dispensatin Assurance Argument Certificatin f s / Rle f Certifier Existing drawings shall be updated as per the crrespnding drafting standard at the time f the drawing creatin r later, whichever is apprpriate t maintain cnsistency acrss the drawing, in rder t avid cnfusin fr maintainers and future designers. If a nn-cmpliant drawing is re-drawn t the PTV Infrastructure Drafting Standards, while nly updating prtins f the drawing t reflect the design changes ccurring n the netwrk, the updated drawing shall be treated as cmpliant. Cmpliant drawings shall be bked in and reside in the DMS cmpliant vault. s that maintain the filename and drawing number frmat cnsistent with the PTV Infrastructure Drafting Standards shall als be treated as cmpliant. s that have been drawn cmpliant t the current r previus PTV Infrastructure Drafting Standards, including VRIOGS 007.2, but have been bked in t the DMS nn-cmpliant vault due t the ftnte drawing is nt fully site crrelated shall be acceptable fr bking int the cmpliant vault n their next update. Nte: Cmpliance against the drafting standard des nt include the need fr crrelatin. The assurance argument shall be cnducted by the designer t state that, if the drawing is left nn-cmpliant, the risks t the peratinal netwrk, maintainer and future designers have been managed SFAIRP. It shall als cnfirm that the verall functinality f the assciated circuits, systems and netwrk n the drawing is as intended. This assurance argument is purely fr the purpse f applying dispensatin and has n relatin t the safety f the signalling system which is cvered thrugh the signalling design and review prcesses. s are required t be certified as AIS, in accrdance with the DMS Prcesses befre it can be accepted back int the DMS. A certifier is respnsible t ensure the affected/updated prtins f the drawing are crrelated t accurately reflect what exists in the field and the remaining prtins f the drawing have been checked t ensure they have been accurately redrawn t reflect the existing DMS drawing. Certificatin is the prcess f the certifier ensuring this. The certified PDF cpy f the A3 sheets view shall include cluds arund the prtins f the drawing cntent that were mdified and crrelated. Cluds shall nly be dne thrugh hand mark up by the certifier and shall nt be included in the CAD file and clear cpy f the PDF file. The certifier must have the technical cmpetency t perfrm this rle. Apprving Manager: Chief Engineer Apprval Date: 01/08/2017 Next Review Date: 01/08/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 17 f 17