Mechanisms for protecting returns on private investments in public infrastructure projects

Despite the widespread attention for the private financing of infrastructure projects, actual empirical work on financing public-private partnerships remains limited. Especially the topics of return on equity and lenders’ cash flow control in relation to uncertainty are under-researched. The aim of this paper is to investigate and discuss the...

Flexibility in PPP contracts: Dealing with potential change in the pre-contract phase of a construction project

Public Private Partnerships (PPPs) cover a range of possible relationships between public and private parties. PPP contracts are typically used in contexts of great uncertainty, such as large construction and infrastructure projects that are realized over a longer period of time. Hence, a major challenge in PPPs is to keep construction...

Sustainable Market Involvement in Transport Infrastructure Management

The construction industry is going through hard times in many countries. This is certainly true in the Netherlands as all big Dutch contractors face disappointing results. The market policies of major (public) clients are held accountable by politics and the market for this situation. However, for the operation and development of transport...

Economic and CO2 Emission Benefits of a Solar Powered Electric Vehicle Charging Station for Workplaces in the Netherlands

The paper analyses the economic and environmental benefits of charging electric vehicles (EV) at workplaces in the Netherlands using photovoltaic panels (PV). A 10kW EV-PV charging system is used to charge the electric cars directly from photovoltaic panels. The cost of using a gasoline vehicle is compared with that of an electric vehicle that...

Public-Private Collaboration: How Private Involvement can Contribute to Network Performance

raditionally, in infrastructure planning, private contractors are engaged at the end of the plan development stage on the basis of a request for proposals, after the conceptual design is finished and the main decisions have been made. They are responsible for final engineering and construction and, separately, for maintenance of the...

How Can Procurement Contribute to Network Performance? Streamlining Network, Project and Procurement Objectives

The core business of governmental organizations like Rijkswaterstaat in the Netherlands is the optimal management of road-end waterway networks. The coming years many maintenance, renewal and extension projects will be executed in these networks. Projects give a disturbance in functionality of the network. Network management is to keep this...

That’s the way we want to learn!” ICT workshop at a primary school

Education is a key ingredient of any knowledge-based society, and ICT will be a key enabling factor to cope with the new strains on our education system. Recently TNO, the Dutch Organisation for Applied Scientific Research, experimented with different existing ICT technologies in a real-life primary classroom. Our ICT for education project had...

Airspringmodel for the numerical simulation (summary)

Airspringmodel for the numerical simulation (summary)

Airspringmodel for the numerical simulation

Airspringmodel for the numerical simulation (summary)

The feasibility of implementing radiating boundary conditions in Triwaq

This report describes a method for radiating disturbances generated in the computational field through the radiating boundaries. First a simulation is made without disturbances (such as a storm surge) subsequently a second simulation is made with the radiating boundary conditions activated, and the disturbance is able to pass through the...

Verfication of a model of the Eastern Scheldt

This report describes a verification simulation of a model of the Eastern Scheldt. Boundary conditions for a simulation of flows and water levels on 11 January 1982 are obtained from gauging stations in the offshore area of the estuary by use of weighting functions obtained from simulations with other models of conditions of September 1975 in...

Aspects of a computational model for long-period water-wave propagation

Analysis of the response of moored surface and sub-surface vessels to ocean waves

Polymerisatie van onverzadigde koolwaterstoffen