System engineering
From system and implementation concepts, technical project management and development of tender specifications to commissioning and system integration.
NEXTRAIL defines successful teamwork in a project as processes that seamlessly intertwine. For all technical, functional and operational aspects. With the highest level of professional expertise in all disciplines.
Wherever the future of rail is written. NEXTRAIL supports railway operators and manufacturers in the transition to the modernisation and digitisation of railways. Complex processes in which reliable and lasting effective results are achieved within tight time frames.
The systems engineering expert teams at NEXTRAIL focus on constructive and cooperative collaboration as well as the perfect interdisciplinary interaction of our technology and departmental experts. This is how we provide reliable support from system design and gathering requirements, the creation of guidelines, support for tendering processes, and taking charge of technical project management and approval processes through to roll-out with commissioning and system integration.
To this end, we draw up service descriptions, implementation concepts, LCC evaluations and develop tendering criteria, requirement specifications and interface descriptions. All this from a single source – so that a holistic view of technical, functional and operational aspects is always maintained and that losses due to communication are a thing of the past.

Our services in the area of system engineering:
From planning to on-site commissioning, NEXTRAIL supports railway operators and manufacturers in the concrete implementation of new and conversion projects (example construction management Ammertalbahn). The complex interplay of approval and release processes through to acceptance is supported by the interdisciplinary interaction of our experts in all our technology fields.
From the conception of the content of a tender, to the definition of supplier strategies, to coordination with the legal department, NEXTRAIL provides support for tenders in signalling technology.
Whether as a basis for tenders or processes, NEXTRAIL helps in requirements management and in the creation of guidelines. Stringent documentation and tracking of requirements is the basis for specifications and processes that find their way into specifications and guidelines. The profound operational knowledge of the experts ensures a high degree of practical relevance. In this way, NEXTRAIL helps operators directly with the implementation of requirements and guidelines. This takes into account aspects of safety management and other interdisciplinary interdependencies.
NEXTRAIL combines a high level of technical knowledge with many years of practical experience in the modelling of systems. To master complexity and ensure sustainable quality and consistency, our teams consistently use model-based methods. And this throughout – from the development of complex system architectures to the mapping of processes and interfaces. If desired, we can use a variety of modelling languages such as UML, SysML or even the Arcadia method with Capella. Perfectly adapted to the individual working methods in your company. For agile, collaborative and successful project work in joint teams.
Your contact person
Here you will find your contact person for system engineering

Marco Gerlach
Member of Executive Board, Head of Project Engineering department
Brunswick
Marco Gerlach is a senior expert and head of the Project Engineering department at NEXTRAIL GmbH. With over 20 years of professional experience on the manufacturing side, he has extensive operational and technical expertise in the railway sector as a consultant – in particular in the field of electronic interlockings with a focus on the German railway construction and operating regulation (EBO), the German tram construction and operating regulation (BOStrab) and control-command and signalling systems (CCS).
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