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CDM Differently

Posted: 20th November 2016

Paul Bussey

RIBA and CIC Health and Safety Committee

AHMM Principal Designer Lead

CDM 2015 has now been with us for some 18 months and the consequences of the changes are starting reveal themselves.

The most controversial and significant change has been the appointment of the new “Principal Designer (PD)” function intended to match during the pre-construction phases that of the Principal Contactor (PC) who is in control the project during execution phases. The PD unlike the now supplanted CDM-coordinator is not generally a person but a corporate role and should be executed by the “designer in control of the pre-construction phase”. Long term the HSE’s intention is to have active lead designers, ideally already on the project, carrying out their designer duties but also taking on the CDM integration of the other designers. It makes sense on a nuclear power station, pharmaceutical factory or infrastructure project to appoint a PD who has the skills, knowledge and experience (SKE) to deliver such highly engineering based projects. It is therefore of similar importance to appoint a PD on Architectural projects who have the SKE’s to deliver the complex aesthetic and technical mix of designer duties that constitute such projects.

However, largely due to historical and over-zealous misinterpretations and misrepresentation of the 1994 & 2007 CDM regulations by certain sectors, designers have been encouraged to shy away from “the responsibility” of taking on a “health & safety” role. The perception of a tick box, checklist and the “what if I miss something?” culture has subverted what was intended as an embedded day to day architectural process into a paperwork based, risk averse, bureaucratic, external role.

Whilst the CDM-C role was perceived by some as reasonably successful, it did not actually constitute a creative “design role” as it largely consisted of challenging designers proposals and asking for the ubiquitous but totally unnecessary “Designer Risk Assessment” documents (DRAs)” from all designers. These were simply “coordinated” into larger DRA excel spreadsheets and the design complexity of other significant factors were totally lost in the myriad of routine risks and a frenzy to find “the safest solution”. This approach has been fuelled by misinterpretations of the “General Principals of Prevention” and the “Working at Height hierarchy” whereby safety procedures intended for manufacturing and implementing work on construction sites have been misinterpreted for the “cerebral and conceptual” architectural design process. Thus the assumed need to “eliminate” risk has been interpreted as getting rid of unusual and new creative design concepts because they are “too unsafe”. Should these interpretations have been applied in history we would surely not have the great world heritage architecture such as the many European medieval cathedrals, Florence duomo and St. Paul’s Cathedral etc. Furthermore, the misinterpretation to “reduce” risk where it cannot be “eliminated” has led to a continual diminution of the design intent to achieve “the safest” solution.

This unintended process has been exacerbated by “moral high ground taking” attitudes that paint designers as arrogant, non-health and safety educated, “serial killers”, who have complete disregard and disdain for the “health and safety” of occupants and site operatives on their projects. The fact that architects have a rigorous academic and in industry training programme for a minimum of 7 years and which includes a proportionate amount of CDM related training in totally missed by these protagonists.Professional architects have to achieve a very high educational standard of design understanding which incorporates an incredibly diverse palette of skills ranging from structural and services integration, sustainability requirements, town planning criteria and building regulations compliance not to mention a huge number of other CAD & BIM skills. Most important however is that of aesthetics, which is generally a mystery to the other design team members, and entails the integration of all these factors and influences into a cohesive and visually appropriate composition. Architects cannot , of course, be experts on all aspects of these other design factors but need an overview and understanding of each and knowing where their limitations lay. These gaps are filled by additional CPD, training or advice from outside “experts” but generally this all needs to be assimilated into the overall design with all the other design factors. This can only be done effectively by an active designer “in control” of the design. Therefore in an architectural project context we start to understand the term “CDM Differently” whereby the lead and active designer incorporates the significant project specific health and safety/CDM issues into the creative design concept right from the start of the project.

Initially the site hazards need to be identified early and captured on site drawings where they should be clearly highlighted amongst the mass of other site details. These should include strategic briefing input from other parties including the client, statutory authorities and other consultants. With this growing understanding of the site infrastructure and the team a conceptual architectural design can start to evolve and the significant design issues can be identified and overlaid.

The combination of site knowledge, client brief and architectural design aspirations are synthesised into a design that integrates all these factors including CDM issues, to achieve a “tolerable level of risk” for the project by a collaborative team based process. This process should be proportionate to the scale and complexity of the perceived significant health and safety risks on the project. It is recognised that some large projects have relatively simple risk profiles whereas some smaller projects have more complex risk issues. The opposite is of course possible but it is for the project team to spend a proportionate amount of time and effort in avoiding, minimising or controlling risks on their project and recording the key issues in a proportionate manner. Due to the potential complexity of this process and to facilitate clear and collaborative information CDM Differently discourages too much narrative information and encourages the use of visual information in a combination of annotated drawings, sketches, images, photographs and diagrams which clearly explain the significant CDM issues and their context. The tolerability of each significant issue is established and noted for future reference during re-design, revisions and value engineering or for 3rd party use in the event of a CDM review, audit or HSE inquiry. This procedure and document encapsulates the legal processes of “reasonable foreseeability & practicability” and if genuinely employed and recorded is acceptable to the HSE and the courts in the event of potential prosecution. It is recognised by the HSE that whilst designers can help to avoid and minimise risks they cannot ever be reduced to zero, and also that accidents can still happen as a result of other extenuating factors. Demonstration that the project design team have gone “as far as reasonably practicable” is sufficient.

In conclusion CDM Differently has been developed as a collaboration between senior RIBA and ICE designers and practitioners, Paul Bussey and Tony Putsman, working within their professional design communities, on live projects who have long established health and safety expertise, experience, training and resulting from considerable HSE and industrywide collaboration. CDM Differently is a common sense, intuitive and collaborative process at the heart of CDM integration on architectural projects, and can be practically carried out by architectural designers with sufficient SKE or with the additional PD training offered by the RIBA.

Contributor: Paul is a Principal Designer Lead for AHMN and sits on both the RIBA and CIC Health and Safety Committees.