The Dutch civil engineering sector is facing a large-scale rehabilitation assignment of their civilengineering structures, that consists of complex projects that lead to cost overruns and time delays. As a consequencethereof, the sector as a whole must realise a productivity growth to match the required capacity and complexity.Criteria such as innovation, knowledge dissemination and digitisation have a positive effect on productivity growth.However, barriers such as current rules & regulation, individual interests and short-term competition result incollective action problems. Furthermore, the sector is characterised as a polycentric system that consists of multipleautonomous yet interdependent public and private actors with diverging interest. These aspects the challenges of therehabilitation assignment. Therefore, there is a need for governance and coordination that is able to facilitatecollective action. This article presents a novel conceptual framework of governance and coordination is that is ableto address the challenges of the rehabilitation assignment. More specifically, the framework combines programmemanagement, process management, polycentric systems, hybrid organisational structures and participatory systemsto facilitate collective action.

Today’s increasing complexity, rising interconnectivity and larger systems in engineering require new approaches and methods for effective engineering. This is also the case for the technological installation in infrastructure sector (TII), which designs technical systems for infrastructural civil structures. To assist in engineering, Model Based System Engineering (MBSE) can be implemented that provides more control and linkage by means of modelling. The implementation process for MBSE is limited described in literature, especially for the TII sector. Desk research helped to understand and characterize the challenges of the TII sector. By means of in-depth interviews with Siemens Mobility engineers next, requirements were developed. Based on those requirements a framework for implementation of MBSE was constructed that consists of eight building blocks. An implementation process was constructed that puts the framework blocks in order and adds more information for implementing MBSE. The main component, the actual modelling, is split up into technical and process modelling. The technical modelling is fed by the choices and interactions of the process modelling. In the implementation process described which framework blocks are important at what moment, as well as update characteristics of the eventually MBSE environment. In the end, the MBSE methodology and the designed process with framework blocks seem promising for maintaining control of future engineering projects. It provides structure to for setting up the new engineering methodology for the TII in special.