Multiobjective Tactical Planning under Uncertainty for Air Traffic Flow and Capacity Management

We investigate a method to deal with congestion of sectors and delays in the tactical phase of air traffic flow and capacity management. It relies on temporal objectives given for every point of the flight plans and shared among the controllers in order to create a collaborative environment. This would enhance the transition from the network view of the flow management to the local view of air traffic control. Uncertainty is modeled at the trajectory level with temporal information on the boundary points of the crossed sectors and then, we infer the probabilistic occupancy count. Therefore, we can model the accuracy of the trajectory prediction in the optimization process in order to fix some safety margins. On the one hand, more accurate is our prediction; more efficient will be the proposed solutions, because of the tighter safety margins. On the other hand, when uncertainty is not negligible, the proposed solutions will be more robust to disruptions. Furthermore, a multiobjective algorithm is used to find the tradeoff between the delays and congestion, which are antagonist in airspace with high traffic density. The flow management position can choose manually, or automatically with a preference-based algorithm, the adequate solution. This method is tested against two instances, one with 10 flights and 5 sectors and one with 300 flights and 16 sectors.Comment: IEEE Congress on Evolutionary Computation (2013). arXiv admin note: substantial text overlap with arXiv:1309.391

Using a network management system (NMS) as an integrated environment for the capacity planning task

The recent years had disclose many issues related to network management. Most of them concerning about technical questions. This work discusses the possibilities of using a Network Management System (NMS) as an integrated environment for capacity planning. We give an overview of NMS and its relevance to the capacity planning tasks. We also take a look at the current NMS and their suitability for the capacity planning task.Sistemas Distribuidos - Redes Concurrencia - Sesión de póstersRed de Universidades con Carreras en Informática (RedUNCI

Linking design and manufacturing domains via web-based and enterprise integration technologies

The manufacturing industry faces many challenges such as reducing time-to-market and cutting costs. In order to meet these increasing demands, effective methods are need to support the early product development stages by bridging the gap of communicating early design ideas and the evaluation of manufacturing performance. This paper introduces methods of linking design and manufacturing domains using disparate technologies. The combined technologies include knowledge management supporting for product lifecycle management (PLM) systems, enterprise resource planning (ERP) systems, aggregate process planning systems, workflow management and data exchange formats. A case study has been used to demonstrate the use of these technologies, illustrated by adding manufacturing knowledge to generate alternative early process plan which are in turn used by an ERP system to obtain and optimise a rough-cut capacity plan

Capacity Planning and Leadtime management

In this paper we discuss a framework for capacity planning and lead time management in manufacturing companies, with an emphasis on the machine shop. First we show how queueing models can be used to find approximations of the mean and the variance of manufacturing shop lead times. These quantities often serve as a basis to set a fixed planned lead time in an MRP-controlled environment. A major drawback of a fixed planned lead time is the ignorance of the correlation between actual work loads and the lead times that can be realized under a limited capacity flexibility. To overcome this problem, we develop a method that determines the earliest possible completion time of any arriving job, without sacrificing the delivery performance of any other job in the shop. This earliest completion time is then taken to be the delivery date and thereby determines a workload-dependent planned lead time. We compare this capacity planning procedure with a fixed planned lead time approach (as in MRP), with a procedure in which lead times are estimated based on the amount of work in the shop, and with a workload-oriented release procedure. Numerical experiments so far show an excellent performance of the capacity planning procedure

Smoothing Procedures for an Integrated Approach for Multi-Level Lot Sizing and Detailed Scheduling

International audienceThe integration of production planning and scheduling decisions represents an important challenge in production management. Typical Enterprise Resource Planning (ERP) systems, using Manufacturing Resource Planning (MRP-II) technique for capacity management, cannot guarantee feasible procurement and production plans at the operational level (short term planning horizon). In this paper we study the integrated multi-level lot-sizing and job-shop scheduling problem. We analyze various smoothing procedures that "repair" the relaxed capacity and Bill-Of-Materials (BOM) constraints in the Lagrangian heuristic of a recent approach

An Approach to The Capacity Management of the Public Health Institutions: University Clinical Centre of Kosova Case Study

This research aims the evaluation of the state of capacity management condition in the public and private health enterprises, as well as its impact on the overall performance, on the quality of services provided, and on achieving enterprise strategic objectives. The supposition is that enterprise capacity in health sector face deficiency on strategic planning. The research model includes a combination of qualitative and quantitative methods in order to examine the problem more intensely. The research is conducted by interviewing respondents engaged in health public and private enterprises management. Capacity management has to do capacity design, planning and organizing, as well as establishing monitoring mechanisms for its control. Thought, enterprises intend to utilize their resources optimally in order to achieve its strategic goals, objectives and better performance in general. In order to achieve this, healthcare enterprises in the country should be focused on strategic planning with distinct focus on capacity management. The research results provide with the conceptual model for more effective capacity management in the health sector, among findings from the explorative research

Strategic capacities in Dutch water management and spatial planning

Dutch water management currently is in a position of fundamental change and renewal. As a consequence of factors such as climate change, continuous land subsidence, urbanisation pressures, and a lacking natural resilience of the water system to absorb water surpluses and shortages, the emphases has shifted from technical measures such as heightening dikes and enlarging drainage capacities towards allowing water to take more space. Since the late 1990s, water management has been modified from an approach of ‘keeping it out’ towards ‘fitting it in’. As a consequence, ‘water management’ and ‘spatial planning’ are associated more closely, especially at the regional level of scale. Recent efforts by spatial planners and water managers to establish new connections have been mainly oriented towards a regulatory planning style: mutual reviewing of policy documents, the interchange of technical knowledge, the establishment of new legal instruments, and the imposition of norms and standards. The paper provides an overview of these efforts, and then introduces the observation that a supplementary strategic planning style would be helpful. Further attunement between ‘space’ and ‘water’ requires strategic capacities to ‘frame mindsets’, ‘to organise attention’, and to transform restrictions into opportunities. Based on a literature review and case studies, therefore, we raise some critical questions as to how efforts to synchronise regional water management and spatial planning match international insights in strategy making and capacity building. Following Healey et al., we understand regional strategy making to include a notion of providing regions with ‘institutional capacity’ and social, intellectual, and political capital. We also build on Mintzberg et al. to emphasise the importance of ‘real vision’ and the need for more ‘imagination applied to building a strategy’. To what extent can current attempts to link Dutch water management and spatial planning be regarded as a reflection of a more strategic planning style? How do prevailing institutional conditions offer constraints or opportunities for further strategic action? We employ the Dutch case to explore some of these exemplary questions.

Management Capacity Assessment for National Health Programs: A study of RCH Program in Gujarat State

The Ministry of Health and Family Welfare, Government of India administers a large number of national health programs such as Malaria control program, Blindness control program, National AIDS control program, Reproductive and Child Health (RCH) Program and so on. However, effective management of these programs has always come under scrutiny, as these programs consume a large amount of resources. As health is a state government subject in India, it is necessary to assess the management capacity of the department of Health and Family Welfare (H & FW) in each state. In this paper, we focus on the management capacity assessment for RCH program. Based on extensive literature survey, and discussions with senior officers in charge of RCH program at the centre and several states, we have developed a conceptual framework for management capacity assessment. Central to our conceptual framework are the following determinants of management capacity at the state dept of H & FW: (1) Capacity to formulate a clear statement of the state’s RCH Policy, Goals, and a Strategic Plan to achieve the Objectives, consistent with the resources available, (2) A well designed organizational structure for the H&FW department to provide the necessary support for achieving the policy goals, (3) Capacity of the H & FW department for effective management of RCH program, (4) Clear documentation of HR policies (qualifications, transfer, promotions, training etc) for RCH managers, (5) Role of External Stakeholders (6) Management Systems for Planning, Implementation and Monitoring RCH program, and (7) Institutional Processes and procedures For each of the above determinants, we have identified a set of indicators to assess the management capacity and designed a management capacity assessment tool to estimate these indicators. A pilot survey of our management capacity assessment tool in a few states helped us to refine certain instruments in our tool and finalize the same. Our management tool has been accepted by the Ministry of H & FW, Government of India and it has asked all the states and union territories to carry out a self assessment of their management capacity for RCH program. We have also recommended a suitable structure for effective management of RCH program for each state based on its population, the number of people in the reproductive age group, expected number of childbirths, and the current status of its H&FW department in delivering RCH services. This recommended structure can be used as a guideline by each state to identify its capacity gaps and take the necessary steps to augment its management capacity.

Model for Research into the Factors Influencing the Effective Planning and Management of Production Capacity

In today's dynamic business environment, the success and competitiveness of any production organization is ensured by continuous improvement, sustainable development, effective planning and management. There is a growing scientific interest in the importance and relevance of production management in view of the strong need to redefine the policies and priorities within the respective strategic plan for business development - with increased focus on capacity planning in order for the industrial enterprises to adapt successfully to the dynamically changing conditions of the global environment and intense competition. Accordingly, full advantage is taken from the ample opportunities to study the impact of a number of factors on capacity planning and management. Based on an in-depth literature analysis, interviews and surveys, selected were 18 key factors  that have a profound influence on the effective planning and capacity management of the production organization. Using  the relationship between each of these factors and the capacity management is closely examined by applying the method of Interpretive Structural Modeling (ISM). Additionally, the interrelationships between the key factors under study are further analyzed by means of a Structural self-interaction matrix (SSIM)

Assessing Organizational Capacity in Housing Provision: a Survey of Public Housing Agencies in Ogun State, Nigeria

Organizational capacity is essential for effective implementation of policies and programmes. Consequently, assessment of organizational capacity helps organizations to identify their strength and weakness in order to make informed decisions about how best to address challenges they face. The goal of this study was to assess the status of organizational capacity of public housing agencies in housing provision in Ogun State Southwest Nigeria. It was motivated by a gap in literature on the specific areas that contribute most to organizational capacity of public agencies in housing provision in Nigeria. Using questionnaire as the principal data collection instrument, primary data were collected from randomly selected 90 staff members involved in the design, planning, implementation and management of public housing projects in four public housing agencies in the study area. The data were analysed using descriptive statistics, and the result showed that most respondents felt that the overall organizational capacity of the agencies in housing provision was adequate. Management capacity was found to be slightly higher than resource capacity with the agencies having most strength in leadership style and weakness in the methods of administration of funds for housing projects. Substantial need and capacity building was found in critical areas such as funding, staff motivation and methods of dispensing of funds for housing projects. The paper suggests that partnerships with private sector organizations, robust staff well-fare schemes and re-training of staff can enhance organizational capacity of public agencies in public housing provision in Nigeria and other developing countries