Uniform workstation for bridges and locks control
The Ministry of Infrastructure & Waterways, section Traffic and Shipping, developed a framework with requirements for uniform workstations for control of nautical objects like bridges and locks.
In this framework requirements are included that concern:
- The physical workstation (furniture, monitors, communication, control and safety instruments);
- The applications required for the control (e.g. radar, planning system);
- The positioning of the CCTV-images in case of remote control: both the images that need to be monitored continuously and the images that need to be viewed before specific actions (process steps);
- Specifications for the user interface of the bridge or locks, with which operators can control the object, receive information on malfunctions, communicate (e.g. radio, intercom) and perform other information or control functions; these specifications are documented in a Style Guide.
Intergo contributed mainly to the two latter activities.
The requirements for these aspects of the workstation are developed from the point of view of the tasks and responsibilities of the operator, as documented in guidelines and descriptions. The guideline ‘Sight’, for example describes which boat and traffic movements the operator should monitor and which parts of the object ought to be viewed before a control action is executed. Based on that, the third bullet point listed above is addressed.
For a specification of the graphical user interface (like design, size and location of texts and symbols and the manner in which the control of the objects occurs), a first contribution of TNO was available. This first step was developed into more detail after visits to existing workstations, observations and interviews with operators.
For the specification of a workstation, the input of the operators is essential. This input has been realized in so-called focus group sessions, in which the demands and whishes of the operators are inventoried and documented and design proposals are discussed. For some operators the development of the uniform workstation is a big step forward compared to the current situation. For other operators it is a continuation of changes that have been set in motion at earlier or current developments in the workstation.