The actual responsibility structure between the positions held
Mar 30, 2026
Alongside defining the various roles, it is important to understand that in practice this is not a simple hierarchical structure, but rather a system of roles with overlapping and complementary responsibilities.
From a broader perspective, three main layers of operation on site can be identified:
The execution management layer – the contractor and the site manager, who are responsible for the actual management of the work, its execution in accordance with safety requirements, and dealing with risks in real time.
The client-side oversight layer – the safety inspector acting on behalf of the client, who performs periodic inspections, documentation, and reporting on the safety status throughout the project lifecycle.
The ongoing on-site control layer – the safety officer and the site manager (where required), who identify risks, conduct routine checks, and maintain a continuous reporting mechanism.
This structure does not divide responsibility; rather, it creates multiple control points, where several parties may identify, report, and respond to the same risk.
The advantage lies in strengthening the control mechanism. The risk lies in overlap without a clear definition of authority.
Real-time decision-making: actual control and responsibility on site
On a site where multiple roles operate simultaneously, it is necessary to clearly define who is authorized to make real-time decisions in risk situations. In particular, it should be specified who is authorized to order a work stoppage, to change the method of execution, and to approve the continuation of work after corrective actions have been taken.
There is not always alignment between those who are authorized to act and those who bear responsibility. This gap is a common source of failures, as responsibility is assessed not only according to formal authority, but also according to actual control.
In the absence of a clear definition, responsibility is not shared—it becomes diffused, making risk management and the retrospective determination of responsibility more difficult. In such situations, responsibility will also be evaluated based on how decisions were made, not merely on the fact that they were made.
What should be done in practice
To reduce this gap, the following should be defined already at the contracting and mobilization stage:
Who is authorized to stop work in any situation involving risk
Who approves the resumption of work after corrective action
How decisions are made in the event of disagreement between parties
How the decision-making process is documented in real time
A decision-making mechanism for resolving disputes between role-holders should also be defined, since in the absence of a clear resolution, the mere identification of a risk does not guarantee that it will be addressed.
This definition is not merely a formal matter, but a condition for effective site management and for the ability to demonstrate actual control in the event of an incident.
To understand how this responsibility is implemented in practice, the structure of responsibility on site can be mapped in a concise manner.
The responsibility structure on the site is not linear, but consists of several layers operating in parallel. Understanding the interface between them is a condition for proper project management.
Construction site liability map
The practical meaning
The practical meaning
The site is not managed by a single entity, but through a system of roles with overlapping and complementary responsibilities.
The advantage is multiple layers of control. The risk is overlap without a clear definition of authority.
When the following issues are not clearly defined, responsibility does not disappear – but rather becomes complicated:
Who identifies risk?
Who is authorized to make a decision?
And who is responsible for the actual care?
In one line
Proper management of a construction site does not depend only on the appointment of officials, but on a clear definition of authorities, responsibilities and actual decision-making processes. Once the structure of responsibilities is understood, it can be translated into practical requirements that are required already at the site opening stage.
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