Multi-modal network evolution in polycentric regions

The development of public transport networks in polycentric regions involves making complex trade-offs between extending network coverage, densifying local connections, offering improved connections between urban centers and increasing capacity on existing links. Moreover, different modalities might be suitable for each of these development...

The Path towards Predicting Evolution as Illustrated in Yeast Cell Polarity

A bottom-up route towards predicting evolution relies on a deep understanding of the complex network that proteins form inside cells. In a rapidly expanding panorama of experimental possibilities, the most difficult question is how to conceptually approach the disentangling of such complex networks. These can exhibit varying degrees of...

Modelling growth principles of metropolitan public transport networks

The development of metropolitan public transport networks often involves choosing between investing in extending radial lines or constructing ring connections. While the former enlarges network coverage the latter enhances network connectivity and reduces the need to perform detours. Moreover, investments might be better directed at...

Evolution of public transit networks in polycentric urban regions

The aim of this thesis is to gain insights into the impact that various variables have on the topological evolution of a public transit network in a polycentric urban region. These variables are: the spatial structure of the polycentric urban region, the demand distribution, the operational costs and multimodality versus unimodality. To gain...

Growth of Metropolitan Public Transport Networks

A Master Thesis Research to determine the effects various demand distributions and operational cost functions have on the evolution and shape of a monocentric metropolitan transport network using a conceptual model, evaluated using network indicators.<br/>

Topological evolution of a metropolitan rail transport network: The case of Stockholm

The structure of transport networks is the outcome of a large number of infrastructure investment decisions taken over a long time span. Network indicators are widely used for characterizing transport network topology and its performance as well as provide insights on possible developments. Little is known however on how rail bound public...

Developing and understanding design interventions in relation to industrial symbiosis dynamics

Symbiotic Urban Agriculture Networks (SUANs) are a specific class of symbiotic networks that intend to close material and energy loops from cities and urban agriculture. Private and public stakeholders in SUANs face difficulties in the implementation of technological and organisational design interventions due to the complex nature of the...

Exploiting Graph Properties for Decentralized Reputation Systems

In online communities, users frequently interact with strangers in order to buy and sell products, watch videos, educating themselves, and playing games. Establishing trust among strangers is essential for the functionality of these communities but challenging, as well. Online reputation systems effectively establish trust among strangers by...