Strategic Capacity Planning Process for Intercity Passenger Rail

2010 ◽  
Author(s):  
Yung-Cheng Rex Lai ◽  
Mei-Cheng Shih
Keyword(s):  
Capacity Planning ◽  
Planning Process ◽  
Capital Investments ◽  
Railway Transportation ◽  
Investment Plan ◽  
Passenger Rail ◽  
Optimal Network ◽  
Network Investment ◽  
Railway System ◽  
Potential Use

The demand for railway transportation is expected to be significantly increased worldwide; hence railway agencies are looking for better tools to allocate their capital investments on capacity planning in the best possible way. We presented a capacity planning process to help planners enumerate possible expansion options and determine the optimal network investment plan to meet the future demand. This process was applied to the conventional railway system in Taiwan to demonstrate its potential use. Using this capacity planning process will help railway agencies maximize their return from capacity expansion projects and thus be better able to provide reliable service to their customers, and return on shareholder investment.

scholarly journals Exploration on Prediction and Early Warning Technology for Investment Completion of 10 kV And Below Power Grid Infrastructure Projects

2020 ◽  
Vol 185 ◽  
pp. 01008
Author(s):  
Lei Ma ◽  
Fan Wen ◽  
Jian Huang ◽  
Xia Pan ◽  
Feifei Xu ◽  
...  
Keyword(s):  
Early Warning ◽  
Distribution Network ◽  
Management Mode ◽  
Infrastructure Projects ◽  
Investment Management ◽  
Plan Implementation ◽  
Support Tool ◽  
Investment Plan ◽  
Network Investment ◽  
And Control

The external severe and complex economic situation has a great impact on the efficiency of the company’s investment implementation. The in-depth implementation of the lean investment management concept also puts forward new requirements for improving the extensive distribution network investment management mode. In addition, in recent years, the proportion of investment in distribution network projects of 10kV and below has increased, and its management mode is difficult to keep up with the new investment management requirements. Therefore, this project takes the infrastructure projects of 10kV and below as the research object, constructs the investment plan curve by studying the business rules of construction, accounting and materials, and deepens its application in the early warning of investment plan implementation based on the investment plan line, and provides an effective support tool for the investment lean management and control of distribution network.

Applying Discrete Event Simulation (DES) in Healthcare

2015 ◽  
pp. 390-410
Author(s):  
Stavros T. Ponis ◽  
Angelos Delis ◽  
Sotiris P. Gayialis ◽  
Panagiotis Kasimatis ◽  
Joseph Tan
Keyword(s):  
Discrete Event Simulation ◽  
Capacity Planning ◽  
Planning Process ◽  
Discrete Event ◽  
Healthcare Facilities ◽  
Performance Improvements ◽  
Event Simulation ◽  
Health Insurance Provider ◽  
And Performance

This paper highlights the opportunities and challenges of applying Discrete Event Simulation (DES) to support capacity planning of a network of outpatient facilities. Despite an abundance of studies using simulation techniques to examine the operation and performance of outpatient clinics, the problem of capacity allocation and planning of medical services within a network of outpatient healthcare facilities appears to be underexplored. Here, a case study of a health insurance provider that operates a network of six outpatient medical facilities in the US is used to illustrate and explore the synthesizing and adaptive, yet parsimonious nature of using DES methodology for network design and capacity planning. Results of this case study demonstrate that significant performance improvements for the network operator can be achieved with applying DES method to support the network facility capacity planning process.

A Simulation-Based Analysis of Electricity Access in Uganda

2015 ◽  
Vol 4 (1) ◽  
pp. 1-30 ◽  
Author(s):  
Donna Lillian Namujju ◽  
Gönenç Yücel ◽  
Erik Pruyt ◽  
Richard Okou
Keyword(s):  
Power Supply ◽  
Capacity Planning ◽  
Planning Process ◽  
Supply And Demand ◽  
Dynamics Simulation ◽  
Power Sector ◽  
Model Simulations ◽  
Root Cause ◽  
Simulation Based ◽  
Electricity Access

Access to power is tied to a country's development. It facilitates improved social welfare, education, health and income generating opportunities. Uganda's economy is stifled by its low electrification rates - 16% nationally. This study builds a working theory on the internal setup of Uganda's power sector utilizing this theory to surface influential behavior modes as they pertain to power generation and supply and how these ultimately affect electricity access. Based on this working theory a System Dynamics simulation model is built. The model simulations show how Uganda's power sector is expected to evolve over 80 years in terms of power supply and demand given existing market structure and prevailing conditions. The study finds major problems in the nature of power accessed specifically an insufficient and unreliable power supply. The root cause is found in the nature of the existing capacity planning process in terms of how future capacity requirements are determined and the agreements made with generators as to how and when they fulfill their investment obligations.

scholarly journals COVID-19 Models for Hospital Surge Capacity Planning: A Systematic Review

2020 ◽  
pp. 1-8
Author(s):  
Michael G. Klein ◽  
Carolynn J. Cheng ◽  
Evonne Lii ◽  
Keying Mao ◽  
Hamza Mesbahi ◽  
...  
Keyword(s):  
Capacity Planning ◽  
Planning Process ◽  
Patient Flow ◽  
Hospital Administrators ◽  
Hospital Capacity ◽  
Governmental Agencies ◽  
Patient Pathways ◽  
Meta Analyses ◽  
Google Search ◽  
Second Wave

ABSTRACT Objective: Health system preparedness for coronavirus disease (COVID-19) includes projecting the number and timing of cases requiring various types of treatment. Several tools were developed to assist in this planning process. This review highlights models that project both caseload and hospital capacity requirements over time. Methods: We systematically reviewed the medical and engineering literature according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We completed searches using PubMed, EMBASE, ISI Web of Science, Google Scholar, and the Google search engine. Results: The search strategy identified 690 articles. For a detailed review, we selected 6 models that met our predefined criteria. Half of the models did not include age-stratified parameters, and only 1 included the option to represent a second wave. Hospital patient flow was simplified in all models; however, some considered more complex patient pathways. One model included fatality ratios with length of stay (LOS) adjustments for survivors versus those who die, and accommodated different LOS for critical care patients with or without a ventilator. Conclusion: The results of our study provide information to physicians, hospital administrators, emergency response personnel, and governmental agencies on available models for preparing scenario-based plans for responding to the COVID-19 or similar type of outbreak.

Integrating Public Transportation Facilities and Equipment Management Systems into Capital Improvement Planning Process

1998 ◽  
Vol 1618 (1) ◽  
pp. 96-102 ◽  
Author(s):  
James Chang ◽  
John Collura
Keyword(s):  
Public Transportation ◽  
Planning Process ◽  
Equipment Management ◽  
Capital Investments ◽  
Use Of Resources ◽  
Improvement Planning ◽  
Capital Planning ◽  
And Performance ◽  
University Of Massachusetts ◽  
Transportation Facilities

A Public Transportation Facilities and Equipment Management System (PTMS), as proposed in the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA), is a tool to assist in the management and utilization of transit facilities and equipment so as to ensure the efficient and effective use of resources. A framework for the application of PTMS elements in the public transit capital improvement planning process is proposed. By using a PTMS as a part of the capital planning process, broad concepts such as needs fulfillment and performance improvement may be embodied in a systematic process to program transit bus capital investments. With data from the Federal Transit Administration’s National Transit Database (NTD), the practical applicability of this framework is investigated in the context of the capital planning process employed by the regional transit authorities and the state transportation agency in Massachusetts. Vehicle replacement needs for a Massachusetts regional transit authority are estimated for a 5-year planning window using the NTD data in conjunction with predictive condition models. These models, developed by Purdue University and the University of Massachusetts at Amherst, use easily quantifiable and objective measures such as age and mileage to predict the future condition of a vehicle. NTD data are also used to identify opportunities for performance-based capital incentives among the Massachusetts regional transit authorities.

scholarly journals Optimal Coordination of Timetable and Infrastructure Development in a Liberalised Railway Market

2019 ◽  
pp. 97-115
Author(s):  
Martin Smoliner Smoliner ◽  
Stefan Walter ◽  
Stefan Marschnig
Keyword(s):  
Open Access ◽  
Planning Process ◽  
Market Access ◽  
Holistic Approach ◽  
Infrastructure Development ◽  
Railway Network ◽  
Advantages And Disadvantages ◽  
The Status ◽  
Railway System ◽  
Optimal Coordination

The gradual liberalisation of the European railway market has so far mainly been assessed regarding its effect on the grade of competition and market access. However, one major impact has not received much attention yet: the effects of the liberalisation on the joint development of timetables and infrastructure. This is especially crucial for countries that align their railway network according to the requirements of the Integrated Timetable (ITF). The implementation of the ITF requires a longterm planning process and network-wide cost-intensive infrastructure measures. Contrary to that, open access traffic can neither be planned in the long-term, nor is it coherent with the ITF. Recent conflicts show that the assignment of train paths for open access traffic considerably affects the system of the ITF, calling for significant timetable and/or infrastructure adaptions. For an efficient and sustainable railway system, a holistic approach is needed allowing for a combination of open access and the requirements of the ITF.To derive a suitable methodology the status quo of the ITF-implementation and open access traffic is analysed in Austria, the Czech Republic and the Netherlands. Based on these findings, three options are identified on how open access can be integrated in an ITF-system according to the EU legislation. Advantages and disadvantages are discussed and finally the optimal procedure in terms of a sustainable network development is recommended.

scholarly journals Railway and urban development in Patras: Towards the improved participation of local governance in complex planning problems

2015 ◽  
Vol 7 (3) ◽  
pp. 365-380
Author(s):  
Theodora Papamichail
Keyword(s):  
Urban Development ◽  
Planning Process ◽  
Local Governance ◽  
Infrastructure Development ◽  
Test Planning ◽  
Local Actors ◽  
Railway System ◽  
Planning Problems ◽  
Complex Planning

In recent years, the topic of integrated infrastructure and urban development requires the bottom-up approach in addition to the formal planning policies. This is specifically true for complex institutional frameworks, which need the enforcement of the interested public. Due to the socio-economic crisis in Greece, infrastructure networks have already been dramatically influenced by the fragmented decision-making among the different planning levels and actors. The case study presented in the paper relates to the improvement of a railway system in Patras, Greece (in narrow terms), but, in broader terms, the case study elucidates the informal planning procedure (called the Test Planning process) behind the railway improvement as such. The idea of using such a procedure in Patras emerged due to the different interests of various actors concerning the railway integration into the urban fabric in last two decades. However, it seems there is an absence of an effective cooperation between the initiators of this procedure and the local authorities. Research methodology is developed in several steps. Firstly, the broader problem and the potential of infrastructure development will be presented. Secondly, the Test Planning process will be presented shortly. In the end, the importance of local government in such a collaborative procedure will be mentioned and the case of local actors in Patras in the different phases of the Test Planning process will be under a critical scope towards the existing situation and the benefits in future steps.

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