Signalling Projects
Date From | Date To | Line | Site | Client | Work Description | Softech Scope of Work |
May-22 | Date | Lisburn | Belfast | Capita-Translink | Feasibility GRIP1, GRIP2, GRIP3 and GRIP4 project development and design to build a new depot. | Feasibility report, Site Surveys, Developing Options and recommending best option at GRIP3 and then developing Signalling Scheme Plan and integration with all other disciplines including Depot Protection System to achieve Approval in Principle at GRIP4. |
Apr-22 | Date | Cross Rail East | Shenfield Station | Murphy Group | Provision of TRTS and CDRA on six platforms GRIP4-8 | Signalling survey, design, installation, test and commissioning |
Apr-22 | Date | Kent & Sussex | Various | Rohmberg Sarsa | Signalling design support for track maintenance and replacement works | Line side signalling equipment Asset Condition Survey, design, disconnection and re-connection |
Sep-20 | Date | Wales and Western | Various | Network Rail | Softech won a framework agreement to delivery TSR and ESR designs for the entire Wales and Western routes. | Temporary Speed Restrictions and Emergency Speed Restriction Designs |
Oct-20 | Date | Channel Tunnel Rail Link (CTRL) (High Speed 1 Rail Link). | Purfleet | Waterman/ Purfleet Centre Regeneration Ltd (PCRL) | The proposed scheme is a mixed-use development comprising 2850 residential units, commercial units, a new town centre, a film & television production studio, schools, community facilities, hotel accommodation, local waste & power facilities, associated infrastructure & utilities work. |
Multi-disciplinary GRIP4 designs covering Signalling, Telecom, E&P, OLE, M&E, EMC and Pway to abolish existing Level Crossing by providing an overbridge, moving the existing Purfleet station and modernising the station. Once GRIP4 is completed, Softech will be asked to deliver GRIP5 designs as well. |
Jan-20 | Date | South East | All routes and South East region | Network Rail | Softech has won 6 year Framework after a competitive tender for delivering Telecom Design throughout the region | Operational and non-operational telecom Design |
May-20 | Jan-21 | Oslo Metro all six lines | Oslo | Hitachi Rail | Preparing all CBTC Tender response documents explaining the technical designs, migration strategy and installation plan | Softech developed over 50 technical documents covering the Hitachi Rail’s CBTC System deployment to Oslo Metro covering: CBTC Solution Architecture, GoA4 (Driverless operation), CBTC Performance, Capacity Optimisation, Migration Strategy, Installation of Onboard CBTC equipment, Interfaces, Level Crossing, Point Machines, Stopping Points, IT and Software related configuration, Construction Methodology, Installation and Testing, Crew, Train and Fleet Management Systems, Maintenance, Maintenance Vehicles. |
Aug-21 | Sep-21 | London-Brighton | Woodside Underpass | Network Rail | Site Surveys and developing GRIP3 options to develop an Underpass under the running railway tracks. | Site Survey, Report and GRIP3 option development and selection. |
Apr-20 | Apr-22 | Rail Depot | Clacton-on-Sea | Egis Rail | GRIP3 and GRIP4 project development and design to build a new depot for Rail Wheel Lathe facility. | Site Surveys, Developing Options and recommending best option at GRIP3 and then developing Scheme Plan and integration with all other disciplines including Depot Protection System to achieve Approval in Principle at GRIP4. |
Feb-18 | Jul-20 | Manchester Tram | Manchester Tram Management System | Thales | GRIP5: Designing Signalling and Telecom system for Manchester Tram | Designing layouts, designing system interface and wiring circuits for Axle Counters, Mesh Radio, Vcom Loop, Point Machines and SPAS Signals, E&P etc. |
Jul-16 | Apr-20 | Hammersmith & City, District and Circle Lines - LU | Many stations | Thales | 4LM Project for resignalling using Seltrac CBTC technology from Thales four London Umderground Lines: Hammersmith & City, District, Circle and Metropolitan to improve capacity and reliability. | Signalling Design support on Seltrac CBTC designs. Mechanical design for fixing assets inside tunnels |
Dec-16 | Nov-19 | Cross Rail East | Romford | Network Rail | Signalling Power Replacement by a Ring Main arrangement for the entire section of 160 Location Cases. | Designing double end fed power supply arrangement, correlation and altering the location designs for the new arrangement. Providing DO Cover. |
May-16 | Apr-18 | Bristol | Bristol Station | Alstom | BASRE Project - Bristol Resignalling using SmartLock and Remote Asset Condition Monitoring. | Signalling Design and Checking Support |
Jul-16 | Apr-17 | Cross Rail Outer | Maidenhead | Balfour Beatty Rail | Providing Field Engineering to inspect installed assets on site against the Series 1 designs. Redesigning the Series 1 AFC drawings where necessary. | Site inspection, preparing site inspection report, fault report and OLE Design. |
Apr-16 | Apr-17 | Thames Link | Three Bridges | Siemens | ERTMS/ETCS rollout design and testing | Softech is providing required Design resources |
Apr-16 | Mar-17 | Great Eastern, Stratford to Shenfield | Manor Park, Maryland and Seven Kings | Capita/ HOCHTIEF | GRIP4: Signal Sighting validation and reporting for putting foot bridges. Undertaking Digital Survey of track assets. | 3D Simulation for Signal Sighting Review and Reporting |
Oct-15 | Jan-16 | Midland Main Line | Radlett | Capita | GRIP3: Radlett Freight Terminal (MML) Signalling Scheme development & Railsys Modelling Liaison. GRIP3 - Option development and evaluation. | Developing Scheme Solutions for a new freight terminal to be constructed at Radlett on the Midland Main Line (MML). |
Sep-15 | Nov-15 | Lewes to Newhaven | Lewes, New Haven Town, New Haven Harbour, New Haven Marine and Falmer | CH2M Hill (Halcrow) | Site survey for: Digital Site Survey for the Scheme Plan correlation on 34 miles track and Asset Condition Report for 124 Locations, one REB and one Relay Room | Creating Correlation pack, site surveys and report production by deploying a team of TIC, MOD 3C and Functional Tester with protection staff. |
Aug-15 | Dec-17 | Anglian Line | Cholchester | TSO | Developed 25 Bonding Plans for OLE Structures movement in line with the OLE designs. Also for the Illford Depot. | Review the OLE Designs for Bonding Plan alterations, designing the bonding plans and IDC. |
Aug-15 | Oct-16 | Wimbledon Tram | Wimbledon Station | Network Rail | GRIP4 & GRIP5: Bringing Tram to the existing Wimbledon main line station to reduce passengers walking to more than a mile for Tram to train connection and to improve capacity. | Developing the scheme inc design specs, alteration to mainline signalling systems including SDS, Control Tables, GEC Geographical Control Centre, Location designs, Track Plan, Cable schematic, panel, etc. |
Jul-15 | Aug-15 | Manchester Tram | Manchester Tram Management System | Thales | GRIP5: Designing Signalling and Telecom system for Manchester Tram | Designing layouts, designing system interface and wiring circuits for Axle Counters, Mesh Radio, Vcom Loop, Point Machines and SPAS Signals etc. |
Feb-15 | Aug-15 | East Coast | Wood Green to Hitchin and Hitchin to Bawtry | Jacobs | GRIP5: East Coast Power Supply Upgarde project. OLE designs and bonding. | CRE and Checking of OLE and bonding designs |
Jan-15 | Oct-17 | Elton Siding | Quinn Glass | MJ Quinn | GRIP5-8: Constructing a new Railway siding for world's largest glass bottling plant near Helsby. | Project Management, site surveys, signalling, telecom and PWay design installation, testing and commissioning. |
Jan-15 | Jul-15 | London Overground Capacity Improvement Program | Richmond Platform 3 | LUL-Network Rail | Changes to GRIP4 and GRIP5 Designs: For the changes of the signal heads to LEDs, new Track Ckt interrupter, track ckt alterations, OSS relocation and provision of buffer stop over two stages | For each of the two stages design and checking: developed Stage Scheme plan, Design Log, Correlation, SDS, Control Tables, Richmond Relay room, Location designs, Track Plan, Cable and Power Schematics. |
Jan-15 | Jun-15 | Great Western | Multiple | Parsons Brinckerhoff | Signal Engineering Support for Great Western Electrification Project (GWEP) | Support to OLE designers and coordination for route section 1-7, reviewing OLE and Civils designs for signal sighting and clash detection, managing interface between LDO and signal sighting model provider (Gioconda), SSF, signalling design changes, Level crossing risk assessment, IDC/IDR. |
Dec-14 | Jun-15 | Control Centres | Romford and Cardiff | Network Rail for Thales | Developed about 20 large Scheme Plans including correlation using Omnicom and site surveys for the two new Control Centres (ROCs) at Romford and Cardiff. | Requirment analysis, Scope development support, Scheme Plan, Correlation, Site Surveys, Fringe analysis, IDC |
Oct-14 | Dec-14 | Inland Port | Doncaster Inland Port | Network Rail | PWAY Design for feasibility and then for Stage 1 for this new Port | PWay Designs: a) Feasibility study and layout over google earth b) Full PWay designs for Phase 1 using OS Tiles. |
Jul-14 | Dec-14 | London Overground Capacity Improvement Program | Richmond Platforms 4, 5, 6 and 7 | LUL-Network Rail | GRIP5: Provision of new buffer stops, fixed redlight, position detectors repositioning, new Track Circuit Interupter | Correlation, SDS, bonding, control tables, Locs design changes, Relay Room,Loc Area Plan, IDC, DO Cover and Handback |
Mar-14 | Sep-14 | London Overground West London Line | Clapham Junction | LUL-Network Rail | GRIP5: Provision of SDO and TRTS on platforms | SDS, SDO and TRTS designs, Locs design changes, Relay Room, Panel, Track Plan, DO Cover and Handback |
Mar-14 | Aug-14 | London Overground West London Line | Shephard Bush | LUL-Network Rail | GRIP5: Provision of SDOs on platforms | SDS, SDO designs, Locs design changes, Track Plan, DO Cover and Handback |
Feb-14 | Jul-14 | London Overground West London Line | Imperial Wharf | LUL-Network Rail | GRIP5: Platform Extension inc moving signals and adding banner repeater | SDS, Altering TFM Schematic, Control Tables, Relay Room and Locs design changes, Track Plan correlation, IDC, DO Cover and Handback |
Dec-13 | Jun-14 | Sidings | Redhill | Volker Fitzpatrick | GRIP3,4: Converting a goods loop to a siding | Signalling, Telecom (Ops and Retail) to include Site Surveys, Developing Scheme Plan, preparing design spec., Signal Sighting, IDC and Getting Scheme Approval for GRIP5, Detail Design inc Westpack Geographical interlocking design and Handback |
Dec-13 | Jun-14 | Sidings | Tattenham | Volker Fitzpatrick | GRIP4,5 and 7: Converting a goods loop to a siding | Signalling, Telecom (Ops and Retail) to include Site Surveys, Developing Scheme Plan, preparing design spec., Signal Sighting, IDC and Getting Scheme Approval for GRIP5, Detail Design and Handback |
Oct-13 | Jul-14 | Sussex | Littlehaven Station-Platform Ext. and Level Crossing | Volker Fitzpatrick | GRIP3,4,5 and 7: Platform extension for 12 car operation and updating Level Crossing controls MCB on one side and AHBC on the other side of platforms. Installed over two stages | Signalling, Telecom (Ops and Retail) to include Site Surveys, Developing Scheme Plan, preparing design spec., Signal Sighting, IDC and Getting Scheme Approval for GRIP5, Detail Design and Handback |
Sep-13 | Jul-14 | London Bridge | Norwood Junction | Network Rail | GRIP3&4: Repositioning Signals to mitigate SPADS. | Site Surveys, Developing Scheme Plan, preparing design spec., Signal Sighting, IDC and Getting Scheme Approval for GRIP5 |
Sep-13 | Oct-13 | Bletchley | SSL | GRIP7: Final design changes, final record updates and handback | Updates to Scheme Plan, Bonding Plan, Loc Area Plan, final design changes to final stage and handback. | |
Aug-13 | Oct-13 | Swindon | Various | MGB | New Design of Locations | SSI Location Design and checking |
Jul-13 | Aug-13 | Cambrian | Pont Briwet | HOCHTIEF | Pont Briwet Bridge replacement | Telecom CRE role for shifting FTN cables and liaising with a multi-disc. Team |
Jun-13 | Oct-13 | Slough | Various | MGB | New Design of Locations | SSI Location Design and checking |
May-13 | Aug-13 | Farnham | Farnham | Atkins | Farnham re-signalling design support | Design and checking of locations, REB, Cable core, Cable schematics, etc. |
Apr-13 | Feb-14 | Sussex | Level Crossing at Fishbourne | Volker Fitzpatrick | GRIP5:Level Crossing closure | Alteration to Locations and Relay Room to remove Level Crossing |
Jan-13 | Aug-13 | Sussex | Lewes Station | Network Rail | GRIP3: Provision of Banner Repeater Signal | Lewes Repeater Signal Appraisal including Signal Sighting and Site surveys |
Jan-13 | May-13 | Various | Manchester | Arup | GRIP7: Undo design changes not commissioned, final record updates and handback | Design to be ‘undone’ due to curtailed installation and commissioning from that designed at GRIP Stage 4+5. Apply Test Logs, final updates and record returns |
Jan-13 | Apr-13 | Four sites | Level Crossings | Arup | GRIP4: National Level Crossing Renewals Package 8 including four level crossings: Alstone, Horton Road, Henwick and Newland East | Designing Control Tables, Location Area Plans and other GRIP4 deliverables |
Dec-12 | Aug-13 | LNW | Linespeed Increase Feasibility Study | Network Rail | Birmingham and Manchester Linespeed Increase GRIP1-3 | Site survey of existing infrastructure. Identifying issues with line speed increase, developing options to increase the line speed. |
Oct-12 | Jan-14 | Sussex | Gatwick Airport | SSL | GRIP5: Gatwick Airport re-modelling and re-signalling to Smartlock SSI, new platform moving to new control centre at Three Bridges. | Detail design support for interlocking, locations, REBs and fringe designs and independent checking |
Sep-12 | Nov-12 | ThamesLink | Charing Cross | Braeburn Estate Ltd., London | GRIP1/2: Relocation of Relay Room | Creating feasibility reports, Option Selection Report and sketches for the relocation of the Relay Room by like for like replacement. |
Aug-12 | Dec-12 | High Speed | St. Pancras | Network Rail | GRIP5: Interface design | Interface design between Cedar Jn REB and High Speed line at St Pancras. Due to design changes to REB circuits, the locations between Cedar Jn REB and St Pancras Junction needed updates. |
Feb-12 | Dec-12 | Manchester to Huddersfield | Stalybridge Station | Amey | GRIP 5: Stalybridge is being re-signalled with a new free wired interlocking | New Location Designs, Bonding Plans, Power Arrangements, Cable core, REB and Fringe designs, etc. |
Dec-11 | Apr-12 | East Suffork | Various station | May Gurney | GRIP5: SSI Location designs for 18 locations | New SSI Location design containing Point Machine Ckt, Axle Counter, Track Ckt, etc. |
Jul-11 | Jan-12 | Liverpool to Manchester Line | All stations | Tata Steel | GRIP 3: Improve Line Capacity, Line Speed and Journey times. | Review of existing arrangements, Site Survey, production of new Signalling Plan, scheme sketches, Breaking Calcs, Headway Calcs., Signal Sighting and spacing calcs and report for each site. |
Jul-11 | Dec-11 | Manchester to Leeds | All stations | Tata Steel | GRIP 2: Improve Line Capacity, Line Speed and Journey times. | Review of existing arrangements, scheme sketches, Breaking Calcs, Headway Calcs., Signal Sighting and spacing calcs and report for each site. |
Jul-11 | Jul-11 | Didcot and Chester Line | Birmingham Snow Hill Station | Tata Steel | GRIP2: Platform re-instatement options | Produce Scheme Sketches, evaluate options and produce Option Selection Report. CRE with design team was deployed. |
Jun-11 | Jul-11 | Skipton to Carlise | Entire line | Tata Steel | GRIP 2: Improve Line Capacity, Line Speed and Journey times. | Review of existing arrangements, scheme sketches, Breaking Calcs, Signal Sighting and spacing calcs and report. |
Jun-11 | Jun-11 | Runcorn and Frodsham Stations | Halton Curve | Tata Steel | GRIP 3 Option selection and validation to improve line speed. | Produce Scheme Sketches, evaluate options and produce Option Selection Report. CRE with design team was deployed. |
Apr-11 | Jul-11 | Peak District to London | 6 Sites | Tata Steel | Asset Condition Survey on six sites including REB and locations to validate GRIP3 Design Proposals | Same as in Work Description. Deployed a team of testers and designers with COS and Lookout team. |
Jan-11 | Mar-11 | York Holgate | York Station | Tata Steel (Corus Rail) | GRIP5 Designing and checking control tables for more than 200 routes and designing SSI Locations. | Designers and Checker |
Jan-11 | Feb-11 | Preston to Blackburn | Hogton | Babcock | GRIP4: Hogton Level Crossing Renewal (AHBC) type including Scheme Development and Design. | Scheme Plan, Bonding Plan, Correlation and REB design and checking. |
Nov-10 | Mar-11 | West Anglia Main Line | Stansted Airport | Hyder Consulting | GRIP4 Design Work including Scheme Plan development, FPS, Design Log and Testing Strategy. | Designer, Scheme Plan Designer, CAD and Checker |
Sep-10 | Sep-10 | Wessex | Twickenham and St. Margret | Hyder Consulting | Correlation/Site survey and development of the Scheme Plan for Platform extension works. | Scheme Plan designer, CAD and checker |
Feb-10 | Jul-10 | Thames Valley Signal Control | Reading IECC | Network Rail for Delta Rail | Train Describer Design Checking of Block Scematic and Stepping Tables. | Designers and principle's checker |
Feb-10 | Jul-10 | Edinburgh to Yoker | Edinburgh and Yoker IECC | Network Rail for Delta Rail | Airdrie Bathgate TD Work - Block Schematic and Stepping Table Design for Edinburgh Waverley IECC and Yoker IECC | Designers and principle's checker, CAD for Block Schematic |
Nov-09 | Feb-10 | Various Lines | 20 different IECC | Network Rail for Delta Rail | IECC Upgrade 004 project - Cross-Boundary Signals - design and checking of 340 Screens for Ashford, Liverpool Street, Marlybone, Upminster, Slough, Tyneside, Leeds City, Edinburgh, Yoker, York IECC | Designers and principle's checker |
Aug-09 | Mar-10 | North London Line | IECC screen design and checking | Network Rail for Delta Rail | IECC screen design and checking work, along with some alarm specification amendments. | Designers and principle's checker. |
Feb-09 | May-09 | North London Line | Train Describer | Network Rail for Delta Rail | Designing Block Schematic and Stepping Tables for Train Describer System. | Designers and principle's checker, CAD for Block Schematic |
Feb-09 | Apr-09 | Thames Valley, Reading | Train Describer | Network Rail for Delta Rail | Designing Block Schematic and Stepping Tables for Train Describer System. | Designers and principle's checker, CAD for Block Schematic |
Feb-09 | Mar-10 | Thames Velley | Reading IECC | Network Rail for Delta Rail | Train Describer Design of Block Schematic and Stepping Tables | Designers and principle's checker, CAD for Block Schematic |
Oct-08 | May-09 | Billingshurst | GRIP 4 Re-signalling and Extension | Network Rail for Jacobs | GRIP 4, design work to develop selected option to full Project Spec. including Signal Design Spec., Scheme Plan, etc. | Designers and principle's checker, CAD for Scheme Plan |
Sep-08 | Mar-10 | West Hampstead | GRIP5 Re-signalling and Extension | Network Rail for Jacobs | GRIP 5, detail design work to develop staged Scheme Plans, re-signalling designs including necessary site surveys, correlation and documentation. Successfully commissioned in three stages. | Designers and principle's checker, CAD for Scheme Plan |
May-08 | Nov-08 | Battersea Park | GRIP3 Platform extension | Network Rail for Jacobs | GRIP 3 work to develop Scheme Plan options and all the necessary site surveys and documentation for GIP 4 input | Designers and principle's checker, CAD for Scheme Plan |
Oct-07 | Apr-08 | Praed Street | Relay Room | Metronet/LUL | Amendment to the interlocking arrangements | Design and principle's checking including Cadding |
Oct-07 | Feb-08 | Depot | Northumberland Park Depot | Metronet/LUL | Provision of Continuous Rail Bonding | Design and principle's checking including Cadding |
May-07 | Apr-08 | Larbert to Stirling | Plean | Network Rail for First Engineering | Abolition of existing signal box and installation of new three aspect colour light signalling between Larbert and Stirling. Transfer of control to Larbert north Signal Box from Plean. A total re-signalling work between Larbert and Stirling. This included Level Crossing. | Design and principle's checking including Cadding- a team of seven designers working including 1 CAD, 4 designers & 2 Principles. |
Apr-07 | Jul-07 | Glenfinnan to Fort Williams | Annat | Network Rail for First Engineering | Scheme Plan design and development for Level Crossing works | Scheme Plan design using the Site Survey as per the Network Rail standards. Design, Cad and Principle's checking |
Apr-07 | Sep-08 | District | Whitechapel | Metronet/LUL | Correlation, resolving anomalies, Identifying and resolving existing errors, identifying and removing degraded neoprene wiring and replacing it with new wiring. Removing some types of relays. | Design & Priciple's Checking |
Mar-07 | Mar-07 | Metropolitan | Rickmansworth | Metronet/LUL | Creating 40" wide 3.5 meter long Illumination Panel drawing, caded to the scale with less than 1% margin of error | Cadding and Principle's Checking |
Jan-07 | Aug-07 | District | Plaistow, Swiss Cottage, Kensington, etc. | Metronet/LUL | Correlation, resolving anomalies, Identifying and resolving existing errors, identifying and removing degraded neoprene wiring and replacing it with new wiring. Removing some types of relays. | Design & Priciple's Checking |
Jan-07 | Sep-07 | District | Elm Park, Degnham, Becontree and Hornchurch | Metronet/LUL | Mitigation of Berth Track Deficiencies. Including preparing Correlation Wire Count Packages for all sites, resolving correlation anomolies, doing design changes, commissioning support, master updates, etc. | Design & Priciple's Checking |
Dec-06 | Mar-07 | Jesmond Metro | Newcastle | Nexus Metro for First Engineering | Stage Works: P&C involving nearly 450 source document modifications and checking. | Relay Interlocking design including Book Wiring , Point Control Tables, Location Area Plan . Provided the commissioning support and maintenance prints. |
Dec-06 | Jan-07 | Central | Laytonstone | Metronet/LUL | Replacement of 9300 Points and conversion to FBR | Design and principle's checking including Cadding |
Dec-06 | Dec-06 | Central | Laytonstone | Metronet/LUL | CAD Conversion of existing Bonding Plan and ATP Loop Plan | Design and principle's checking including Cadding |
Nov-06 | Nov-06 | Circle | Tower Hill | Metronet/LUL | Tower Hill - Interlocking Machine Room | Design and principle's checking including Cadding |
Sep-06 | Nov-06 | Central | Grange Hill | Metronet/LUL | Replacement of 9300 Points and conversion to FBR | Design and principle's checking including Cadding |
Sep-06 | Sep-06 | Central | Grange Hill | Metronet/LUL | Creating Bonding Plan and ATP Loop Plan | Design and principle's checking including Cadding |
Jun-06 | Aug-06 | Waterloo&City Line | Waterloo and Bank | Metronet/LUL | Waterloo&City Line- phase 2 works | Design and principle's checking including Cadding |
May-06 | Apr-08 | Scottish Lines | Stirling to Kincaredine | Network Rail for First Engineering | Remote Relay Interlocking, Signalling and Scheme plan design for the new line including MCB and AOCL type Level Crossings | Onsite design and commissioning support to First Engineering |
Mar-06 | Mar-06 | Victoria | Kings Corss | Metronet/LUL | Victoria Line upgarde enabling works. Emergency Plunger relocation project. | Design and principle's checking including Cadding |
Feb-06 | Feb-06 | Victoria | Victoria, Stockwell, Brixton | Metronet/LUL | Victoria Line upgarde enabling works. Coasting Control project | Design and principle's checking including Cadding |
Dec-05 | Feb-06 | Victoria | Kings Corss | Metronet/LUL | Victoria Line upgarde enabling works. Kings Cross PEPS, Siding Project | Design and principle's checking including Cadding |
Jun-05 | Aug-05 | Central | Bethnal Green to Roding Valley | Metronet/LUL | Bethnal Green to Roding Valley (Including Hainault Loop) Diagram of Signalling and Current Rail Sections for Traffic Controller | Design and principle's checking including Cadding |
Aug-04 | May-05 | Waterloo&City Phase 1 | Waterloo and Bank | Metronet/LUL | Waterloo and City Line Enhancement Phase 1 enhancement works | Design and principle's checking including Cadding |