This paper presents congestion management in deregulated power systems. In a deregulated environment, every buyer wants to buy power from the cheapest generator available, irrespective of relative geographical location of buyer and seller. As a consequence of this, the transmission corridors evacuating the power of cheaper generators would get overloaded if all such transactions are approved. C...

Congestion is a wasteful stage of the production process where outputs are reduced due to excessive amount of inputs. There are several approaches in data envelopment analysis (DEA) literatures to treat congestion. The concept of strong and weak congestion first developed by Tone and Sahoo [Tone, K., Sahoo, B.K., 2004. Degree of scale economies and congestion: A unified DEA approach. European J...

To alleviate traffic congestion, one of the most pressing urban challenges in developing countries, Beijing’s government has been investing increasingly in subway infrastructure. In this study, using fine-scale daily traffic records from 2009 to 2013, we perform a regression discontinuity design to examine the average treatment effects of subway openings on traffic conditions in Beijing from 20...

Daily traffic congestions form major problems for businesses such as logistical service providers and distribution firms. They cause late arrivals at customers and additional hiring costs for the truck drivers. The additional costs of traffic congestions can be reduced by taking into account and avoid well-predictable traffic congestions within off-line vehicle route plans. In the literature, v...

Wireless Sensor Networks (WSNs) are a specific category of wireless ad-hoc networks where their performance is highly affected by application, life time, storage capacity, processing power, topology changes, the communication medium and bandwidth. These limitations necessitate an effective data transport control in WSNs considering quality of service, energy efficiency, and congestion control. ...

Variable message sign (VMS) is an effective traffic management tool for congestion mitigation. The VMS is primarily used as a means of providing factual travel information or genuine route guidance to travelers. However, this may be rendered sub-optimal on a network level by potential network paradoxes and lack of consideration for its cascading effect on the rest of the network. This paper foc...

A research into congestion propagation mechanism of urban rail transit passenger flow in train delay scenario is great significance to the formulation coordinated limitation measures among operation lines networks. This paper presents a methodology for modelling cascade dynamics congestion. In this method, firstly, computing method network states based on load entropy proposed describe overall ...

In this proposal we first describe some major research problems in distributed systems. We broadly classify these research challenges into four categories. Each of these challenges are in the areas of congestion control, routing, large scale distributed systems (cloud computing) and Distributed of Denial of Service (DDoS) attacks. We then discuss existing techniques to deal with these challenge...

Recently, several router-based congestion control mechanisms have been proposed to support an end-to-end congestion control mechanism of TCP (Transmission Control Protocol). In this paper, we focus on a RED (Random Early Detection) router, which is one of promising router-based congestion control mechanisms. The RED router randomly drops the arriving packet by alignment probability to an averag...

Congestion management is one of the technical challenges in power system deregulation. This paper presents single objective optimization approach for optimal choice, location and size of Static Var Compensators (SVC) and Thyristor Controlled Series Capacitors (TCSC) in power system to improve branch loading (minimize congestion), improve voltage stability and reduce line losses. Though FACTS co...