A real-life motorway in Belgium is studied and a comparison is made between a simulation of a morning rush hour situation without control and a simulation of a morning rush hour situation with ramp metering implemented. Two types of controllers are compared: a traditional ALINEA based controller and a model predictive control based ramp metering controller. In order to evaluate the controllers ...

BACKGROUND Domestic and European Union wide directives are encouraging more and more utilities to modernize their distribution grids. Spain became a pioneer by starting to replace traditional metering systems with modern standardized AMR solutions. In addition to the regulatory directives, Iberdrola grabbed this opportunity to think beyond metering. Iberdrola introduced remote management and co...

Ramp meters in the Twin Cities have been turned off for eight weeks in fall 2000 in an experiment testing their effectiveness. This chapter analyzes the data collected during the experiment on several representative freeways during the afternoon peak period. Several performance measures for ramp metering including mobility, equity, consumers’ surplus, productivity, accessibility, and travel tim...

In this paper, we describe the development of smart meter using Advanced Metering Infrastructure (AMI). This entails transport of metering data from energy consumer’s premises to the data management systems of energy provider using a practical mesh networking solution to realize metering communication. When the demand in the grid increases with decreased amount of power generated, this in turn ...

In this work, a revised iterative learning control based ramp metering algorithm with compensation for the iteration-depended traffic free speed is proposed. This control method works well when free speed is iteration-varying, which is the most common situation for the freeway traffic system. With rigorous analysis, the proposed control scheme guarantees the asymptotic convergences along the it...

Homogeneous traffic flows are believed to be better in absorbing disturbances, raise capacity and stimulate traffic safety. Measures to make traffic more homogeneous are therefore often taken to increase capacity. This paper shows that the ability of a traffic flow to deal with traffic coming from an on-ramp reduces when the through flow becomes more homogeneous. A motorway was modelled in the ...

The new generation of power metering system i.e. Advanced Metering Infrastructure (AMI) is expected to enable remote reading, control, demand response and other advanced functions, based on the integration of a new two-way communication network, which will be referred as Smart Metering Network (SMN). In this paper, we focus on the design principles of multiple access control (MAC) protocols for...

The operations of freeway ramp metering and urban traffic network signal control are independent in most areas. Such situation may cause some conflict between traffic streams of the two subsystems, or, at least, their dynamic interactions have not been taken into account from an overall system viewpoint. Traffic performance can be improved if the controls of these two subnetworks are integrated...

In order to decide on advertisement fees for web servers, Naor and Pinkas introduced (threshold) metering schemes secure against coalitions of corrupt servers and clients. They show that one should be able to detect illegal behavior of clients, i.e., one needs to verify the shares received from clients. Most metering schemes do not offer this feature. But Ogata and Kurosawa pointed out a minor ...

Smart grid security has many facets, ranging over a spectrum from resisting attacks aimed at supervisory and control systems, to end user privacy concerns while monitored by the utility enterprise. This multi-faceted problem also includes vulnerabilities that arise from deployment of local cyber-physical attacks at a smart metering location, with a potential to a) manipulate the measured energy...