Urban congestion management: the impact of demand management proposals

1995 ◽  
Author(s):  
A.D. May
Keyword(s):  
Demand Management ◽  
Congestion Management ◽  
The Impact

scholarly journals A Decentralized Local Flexibility Market Considering the Uncertainty of Demand

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2078 ◽  
Author(s):  
Ayman Esmat ◽  
Julio Usaola ◽  
Mª Moreno
Keyword(s):  
Real Time ◽  
Distribution System ◽  
Demand Management ◽  
Congestion Management ◽  
Local Market ◽  
Management Process ◽  
Real Distribution ◽  
System Operator ◽  
The Right ◽  
The Impact

The role of the distribution system operator (DSO) is evolving with the increasing possibilities of demand management and flexibility. Rather than implementing conventional approaches to mitigate network congestions, such as upgrading existing assets, demand flexibility services have been gaining much attention lately as a solution to defer the need for network reinforcements. In this paper, a framework for a decentralized local market that enables flexibility services trading at the distribution level is introduced. This market operates on two timeframes, day-ahead and real-time and it allows the DSO to procure flexibility services which can help in its congestion management process. The contribution of this work lies in considering the uncertainty of demand during the day-ahead period. As a result, we introduce a probabilistic process that supports the DSO in assessing the true need of obtaining flexibility services based on the probability of congestion occurrence in the following day of operation. Besides being able to procure firm flexibility for high probable congestions, a new option is introduced, called the right-to-use option, which enables the DSO to reserve a specific amount of flexibility, to be called upon later if necessary, for congestions that have medium probabilities of taking place. In addition, a real-time market for flexibility trading is presented, which allows the DSO to procure flexibility services for unforeseen congestions with short notice. Also, the effect of the penetration level of flexibility on the DSO’s total cost is discussed and assessed. Finally, a case study is carried out for a real distribution network feeder in Spain to illustrate the impact of the proposed flexibility framework on the DSO’s congestion management process.

scholarly journals Assessment of Spatiotemporal Peak Shift of Intra-Urban Transportation Taking a Case in Bangkok, Thailand

2021 ◽  
Vol 13 (12) ◽  
pp. 6777
Author(s):  
Masanobu Kii ◽  
Yuki Goda ◽  
Varameth Vichiensan ◽  
Hiroyuki Miyazaki ◽  
Rolf Moeckel
Keyword(s):  
Developing Countries ◽  
Travel Time ◽  
Demand Management ◽  
Likelihood Estimation ◽  
Road Transport ◽  
Peak Shift ◽  
Time Shift ◽  
Peak Time ◽  
Management Scenarios ◽  
The Impact

Reducing congestion has been one of the critical targets of transportation policies, particularly in cities in developing countries suffering severe and chronic traffic congestions. Several traditional measures have been in place but seem not very successful. This paper applies the agent-based transportation model MATSim for a transportation analysis in Bangkok to assess the impact of spatiotemporal transportation demand management measures. We collect required data for the simulation from various data sources and apply maximum likelihood estimation with the limited data available. We investigate two demand management scenarios, peak time shift, and decentralization. As a result, we found that these spatiotemporal peak shift measures are effective for road transport to alleviate congestion and reduce travel time. However, the effect of those measures on public transport is not uniform but depends on the users’ circumstances. On average, the simulated results indicate that those measures increase the average travel time and distance. These results suggest that demand management policies require considerations of more detailed conditions to improve usability. The study also confirms that microsimulation can be a tool for transport demand management assessment in developing countries.

Sensitivity Based Approach for Transmission Congestion Management Utilizing Bids for Generation Rescheduling and Load Curtailment

2006 ◽  
Vol 7 (4) ◽  
Author(s):  
Himanshu Kumar Singh ◽  
S.C. Srivastava ◽  
Ashwani Kumar Sharma
Keyword(s):  
Electricity Markets ◽  
Power Flow ◽  
Reactive Power ◽  
Congestion Management ◽  
Test System ◽  
Hyperbolic Function ◽  
Flow Sensitivity ◽  
Fair Competition ◽  
Load Curtailment ◽  
The Impact

One of the most important tasks of System Operator (SO) is to manage congestion as it threatens system security and may cause rise in electricity price resulting in market inefficiency. In corrective action congestion management schemes, it is crucial for SO to select the most sensitive generators to re-schedule their real and reactive powers and the loads to curtail in extreme congestion management. This paper proposed the selection of most sensitive generators and loads to re-schedule their generation and load curtailment based on the improved line flow sensitivity indices to manage congestion. The impact of slack bus on power flow sensitivity factors has been determined to encourage fair competition in the electricity markets. Effect of bilateral and multilateral transactions, and impact of multi-line congestion on congestion cost has also been studied. The generators’ reactive power bid has been modeled by a continuous differentiable tangent hyperbolic function. The proposed concept of congestion management has been tested on a practical 75-bus Indian system and IEEE-118-bus test system.

scholarly journals CONTEMPORARY MANAGEMENT OF BUSINESS PROCESSES WITHIN THE SUPPLY CHAIN OF FASHION INDUSTRY

2020 ◽  
pp. 36-39
Author(s):  
Andrea Dobrosavljević ◽  
Snežana Urošević
Keyword(s):  
Supply Chain ◽  
Business Process ◽  
Business Process Management ◽  
Process Management ◽  
Business Processes ◽  
Demand Management ◽  
Relationship Management ◽  
Customer Relationship ◽  
Fashion Industry ◽  
The Impact

Business processes are present in all types of organizations, regardless of the size or industry within which the organization operates. Successful business process management (BPM) is an indicator of the level of process maturity of the organization. Within the supply chain, it is possible to observe the presence of business processes of a collaborative nature, as BPM relies on the principles of partnership, development, and exchange of information through links that exist within this chain between all actors [1]. Within this paper, BPM in the relations with suppliers and consumers within the supply chain of organizations operating in the fashion industry is considered. Lambert [2] lists eight macro processes that take place in the supply chain, between suppliers, manufacturers, distributors, retailers and end consumers, as follows: customer relationship management, supplier relationship management, demand management, order execution, fl ow management production, product development and commercialization and return management. Within this paper, a research is presented which analyzes the segments of managing collaborative business processes within the supply chain of the fashion industry, based on the responses of 508 managers and employees in the fashion industry in the Republic of Serbia. The needs for the development of certain segments in accordance with the needs of modern business process management have been explored.Scientifi c novelty. The research part of this paper relies on the application of Friedman's test which enables the analysis of the current state of BPM in relations with suppliers and consumers within the supply chain of the fashion industry, expressed through workers' responses with a ranking of their preferences. This paper contributes to the creation of a knowledge base within the research in the fi eld of the impact of BPM on improvements in the supply chain, on the basis of which it is possible to conduct further research and upgrade knowledge.Practical value. The fi ndings derived from the results of research of this type contribute to the development of the business from various aspects. The benefi ts can be refl ected not only through the strengthening of the competitive position but also through the sustainability of business on the basis of adequate application of BPM practices in all business segments. Accordingly, in addition to the scientifi c novelty, which is refl ected in the results of the rese arch work, there is a practical novelty, which is refl ected in the guidelines for the development of modern BPM within the supply chain of the fashion industry.

scholarly journals Impact Analysis of Parking Price Adjustment on the Quality of Service of Airport Parking Lots for Light Vehicles

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Cheng Cheng ◽  
Peng Qi
Keyword(s):  
Quality Of Service ◽  
Impact Analysis ◽  
Demand Management ◽  
Evaluation Framework ◽  
Daily Maximum ◽  
Before And After ◽  
Parking Lot ◽  
The Impact ◽  
Parking Demand

Pricing is a common measure for parking demand management that has been implemented worldwide. However, the impact of parking price on a parking lot’s quality of service is seldom discussed. This study investigated the impacts of a ladder daily maximum fee charging strategy on the quality of service of the Hongqiao International Airport parking lot based on automatic transaction data before and after the strategy was implemented. An evaluation framework considering managers’ and users’ perspectives was designed. The estimation results show that the new price regulation method largely discouraged long-term parking demand and improved the availability of airport parking facilities, especially during long holidays. As a consequence, throughput and income largely increased in the airport, and there were extra time costs during vehicle departures. The price elasticity of parkers with different parking durations was further estimated. The results showed that price sensitivity is relatively inelastic but varies based on parking duration.

scholarly journals Reliability Assessment of Distribution Networks with Optimal Coordination of Distributed Generation, Energy Storage and Demand Management

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3202
Author(s):  
Alberto Escalera ◽  
Edgardo D. Castronuovo ◽  
Milan Prodanović ◽  
Javier Roldán-Pérez
Keyword(s):  
Energy Storage ◽  
Distribution Systems ◽  
Network Reliability ◽  
Demand Management ◽  
Reliability Assessment ◽  
Distribution Networks ◽  
Reliability Indices ◽  
Optimal Coordination ◽  
Management Techniques ◽  
The Impact

Modern power distribution networks assume the connection of Distributed Generators (DGs) and energy storage systems as well as the application of advanced demand management techniques. After a network fault these technologies and techniques can contribute individually to the supply restoration of the interrupted areas and help improve the network reliability. However, the optimal coordination of control actions between these resources will lead to their most efficient use, maximizing the network reliability improvement. Until now, the effect of such networks with optimal coordination has not been considered in reliability studies. In this paper, DGs, energy storage and demand management techniques are jointly modelled and evaluated for reliability assessment. A novel methodology is proposed for the calculation of the reliability indices. It evaluates the optimal coordination of energy storage and demand management in order to reduce the energy-not-supplied during outages. The formulation proposed for the calculation of the reliability indices (including the modelling of optimal coordination) is described in detail. The methodology is applied to two distribution systems combining DGs, energy storage and demand management. Results demonstrate the capability of the proposed method to assess the reliability of such type of networks and emphasise the impact of the optimal coordination on reliability.

scholarly journals Energy Demand Management and Social Norms

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3779
Author(s):  
Bernadeta Gołębiowska ◽  
Anna Bartczak ◽  
Mikołaj Czajkowski
Keyword(s):  
Social Norms ◽  
Financial Incentives ◽  
Energy Demand ◽  
Consumer Preferences ◽  
Demand Management ◽  
Electricity Consumption ◽  
External Control ◽  
Revealed Preferences ◽  
Personal Norms ◽  
The Impact

The main objective of our study was investigating the impact of norms and financial motivation on the disutility of energy management for Polish households. We analyzed consumer preferences and willingness to accept demand-side management (DSM) programs. Choice experiment was applied for electricity contracts including external control of electricity consumption. Ajzen’s theory of planned behavior provided the theoretical framework of the study, which tested hypotheses about the impact of social norms on consumer choices of electricity contracts. We show that people with higher descriptive social norms about electricity consumption are less sensitive to the level of compensation and more responsive to the number of blackouts. People willing to sign a contract for financial reasons were less sensitive to the external control of electricity consumption and less inclined toward the status quo option. Injunctive social norms and personal norms had a non-significant impact on consumer decisions. We conclude that financial incentives can reduce the effect of the norms. Social and personal norms seem to be more important when we analyze the revealed preferences. European countries face significant challenges related to changes in energy policy. This study contributes to understanding the decisions of households and provides insights into the implementation of DSM.

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