This paper proposes an optimisation algorithm for designing an optimal implementation path for a charging cordon scheme. The main incentive for time-dependent design is public acceptability issue. A simple equilibrium based time-dependent model is defined. Different patterns of the implementation path are investigated including (i) evolution of a single cordon, (ii) single cordon and additional...

The cordon pricing scheme is an efficient measure to untie congestion and environmental problems in urban metropolitan areas. Since March of 2007, Mashhad has implemented a restricted Central Business District (CBD) Zone as a seasonal congestion management program. The primary goal of the Mashhad cordon scheme is to reduce traffic congestion throughout the CBD. This paper describes the main fea...

This paper presents the impact of road user charging (RUC) on vehicle emissions through application of traffic assignment and pollutant emission models. It presents results of an analysis of five RUC schemes on vehicle emissions in Leeds, UK for 2005. The schemes were: a 3 pound sterling inner ring road cordon charge; a double cordon with a 2 pound sterling inner ring road and a 1 pound sterlin...

Congestion pricing strategy has been recognized as an effective countermeasure in the practical field of urban traffic congestion mitigation. Despite the positive effects of congestion pricing, its implementation has faced problems. This paper investigates the issue of environmental equity in cordon pricing and a park-and-ride scheme. Although pollution decreases inside the cordon by implementa...

There is a major research effort throughout the world to modify grapevines so that viticultural practices can be economically mechanized while maintaining or improving yield and quality. To use machines successfully for shoot positioning, pruning, harvesting, and other grape production operations, trellis systems must be devised and shoots positioned to accommodate precise mechanical movement (...

A major objective of the practical implemented cordon-based congestion pricing schemes is to maintain the traffic conditions within the cordon area, which is rarely considered in most of the existing studies. Thus, this paper addresses the optimal toll charge pattern that can restrict the total inbound flow of each cordon to a predetermined threshold. The toll charges on all the entry links of ...

Cordon-Bleu is, like Spire, a member of the growing family of WH2 repeat proteins, which emerge as versatile regulators of actin dynamics. They are expressed in morphogenetic and patterning processes and nucleate actin assembly in vitro. Here, we show that Cordon-Bleu works as a dynamizer of actin assembly by combining many properties of profilin with weak filament nucleating and powerful filam...

BACKGROUND Birdsong is a popular model system in research areas such as vocal communication, neuroethology or neuroendocrinology of behaviour. As most research has been conducted on species with male-only song production, the hormone-dependency of male song is well established. However, female singing and its mechanisms are poorly understood. METHODOLOGY/PRINCIPAL FINDINGS We characterised th...