Applying the IWA approach to water loss performance indicators in Australia

2003 ◽  
Vol 3 (1-2) ◽  
pp. 153-161 ◽  
Author(s):  
T. Carpenter ◽  
A. Lambert ◽  
R. McKenzie
Keyword(s):  
Performance Indicators ◽  
Best Practice ◽  
Task Force ◽  
Major Step ◽  
Water Losses ◽  
Data Set ◽  
Task Forces ◽  
Non Revenue Water ◽  
And Performance ◽  
National Workshop

In 1999 and 2000, IWA Task Forces on Water Losses and Performance Indicators published their conclusions of over three years research, analysis and discussions. For the topics of Non-Revenue Water, Water Losses, Apparent Losses and Real Losses, these included:a recommended standard terminology, with definitions and procedures for assessing these components of the Annual Water Balance;recommended performance indicators for each of these components. This work represents a major step forward in defining the “best practice” approach to assessing and presenting components of Non-Revenue Water, for more rational comparisons of performance in diverse systems within a single organisation, within the same country, and between countries. The 21 members of the Water Services Association of Australia (WSAA) provide water and wastewater services to 12.9 million Australians. WSAA seeks to promote “best practice”, and act as a national focus for all interested parties. In February 2000 WSAA organised a national Workshop in Melbourne to discuss the IWA methodology. Arising from this Workshop, WSAA commissioned the production of customised Software and an Associated User Manual known as “Benchloss”, to promote and facilitate the application of the IWA recommended methodology throughout Australia. The paper will describe the development and application of “Benchloss” to date, with a comparison of Australian performance data against an International Data Set used by the Water Losses Task Force.

International Report: Water losses management and techniques

2002 ◽  
Vol 2 (4) ◽  
pp. 1-20 ◽  
Author(s):  
A.O. Lambert
Keyword(s):  
Performance Measures ◽  
Distribution Systems ◽  
State Of The Art ◽  
Task Force ◽  
The State ◽  
Water Losses ◽  
Task Forces ◽  
International Report ◽  
And Performance ◽  
Unaccounted For Water

Since the 1991 IWSA International Report on “Unaccounted for Water and the Economics of Leak Detection”, the topic of management of water losses in distribution systems has received increased attention. This International Report seeks to present an overview of the “state of the art” in management of Water Losses, based on the Reports prepared by National Rapporteurs, the recent recommendations of the IWA Task Forces on Water Losses and Performance Measures, and improved concepts for modelling components of leakage and pressure: leakage relationships. The IWA Task Force recommendations provide overdue clarification and guidance on several issues that have caused persistent problems in quantifying Water Losses and comparing the effectiveness of their management. It is hoped that this Report will assist in the promotion of a more standardised international approach to the definition, assessment, monitoring and management of Non-Revenue Water and Water Losses.

CONTRACTOR SAFETY

1997 ◽  
Vol 37 (1) ◽  
pp. 682
Author(s):  
M.A. Thackray
Keyword(s):  
Performance Indicators ◽  
Best Practice ◽  
Safety Management ◽  
Hazard Analysis ◽  
Business Plan ◽  
Safety Performance ◽  
Communication Links ◽  
The Status ◽  
And Performance

This paper deals with the efforts and results of a Management driven campaign to improve contractor safety performance in WAPET's operations.WAPET Management identified Contractor safety performance as one of four key safety focus areas in their 1995 Business Plan. The other focus areas were Hazard Analysis, Training and Audit and Review.Strategies adopted for achieving improvements in contractor safety included:aligning Contractor Goals and Objectives with WAPET's by involving major contractors in 'Best Practices' workshops. The workshops specifically addressed the Business Plan focus areas and the identification and measurement of performance indicators. The workshops provided contractors with an open forum to express their views and efforts in these areas;holding follow-up meetings with individual contractors and contractor groups with common areas of work. Both contractors and WAPET management detailed the status and efforts being put into these areas. These meetings identified improvement opportunities and opened up communication links both with WAPET personnel and between contractors; andimplementing the results of the workshop and meetings by upgrading WAPET's Safety Management System particularly in the areas of pre-qualification, contracting philosophies and contractor management philosophies.Feedback on each stage of the 1995 program was used to determine the strategies for the 1996 program. The workshops and meetings highlighted process improvement opportunities particularly in areas of industry standardisation, development of contractor Safety Management Systems, lines of communication/accountability, employee involvement and performance indicators. These opportunities were documented in a 'Contractor Best Practice* manual of which over 350 have been distributed.Conventional safety measures indicate a 50 per cent improvement in both LTI and Total Reportable frequency rates for WAPET's contractors in the past 12 months. The success of the program was also demonstrated by other indicators such as greater openness in communications, greater participation in safety meetings and a closer working relationship with WAPET.

scholarly journals Best Practice Framework of Fracture Liaison Services in Spain and their coordination with Primary Care

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
A. Naranjo ◽  
S. Ojeda ◽  
M. Giner ◽  
M. Balcells-Oliver ◽  
L. Canals ◽  
...  
Keyword(s):  
Primary Care ◽  
Continuity Of Care ◽  
Performance Indicators ◽  
Best Practice ◽  
Fragility Fractures ◽  
Fracture Liaison Services ◽  
And Performance ◽  
Practice Framework ◽  
Fracture Liaison

Abstract Summary The coordination of Fracture Liaison Services (FLS) with Primary Care (PC) is necessary for the continuity of care of patients with fragility fractures. This study proposes a Best Practice Framework (BPF) and performance indicators for the implementation and follow-up of FLS-PC coordination in clinical practice in Spain. Purpose To develop a BPF for the coordination of FLS with PC in Spain and to improve the continuity of care for patients with fragility fractures. Methods A Steering Committee selected experts from seven Spanish FLS and related PC doctors and nurses to participate in a best practice workshop. Selection criteria were an active FLS with an identified champion and prior contact with PC centres linked to the hospital. The main aim of the workshop was to review current FLS practices in Spain and their integration with PC. A BPF document with processes, tools, roles, and metrics was then generated. Results Spanish FLS consists of a multidisciplinary team of physicians/nurses but with low participation of other professionals and PC staff. Evaluation and treatment strategies are widely variable. Four desired standards were agreed upon: (1) Effective channels for FLS-PC communication; (2) minimum contents of an FLS clinical report and its delivery to PC; (3) adherence monitoring 3 months after FLS baseline visit; and (4) follow-up by PC. Proposed key performance indicators are (a) number of FLS-PC communications, including consensus protocols; (b) confirmation FLS report received by PC; (c) medical/nursing PC appointment after FLS report received; and (d) number of training sessions in PC. Conclusions The BPF provides a comprehensive approach for FLS-PC coordination in Spain, to promote the continuity of care in patients with fragility fractures and improve secondary prevention. The implementation of BPF recommendations and performance indicator tracking will benchmark best FLS practices in the future.

scholarly journals The use of Frontier Analysis to assess the technical rigor of water loss performance indicators

2020 ◽  
Vol 3 (1) ◽  
pp. 102-117
Author(s):  
Alan S. Wyatt
Keyword(s):  
North America ◽  
Best Practices ◽  
Water Loss ◽  
Performance Indicators ◽  
Total Water ◽  
Water Losses ◽  
Frontier Analysis ◽  
Water Association ◽  
International Water ◽  
And Performance

Abstract The American Water Works Association (AWWA) has developed and disseminated advanced methods and performance indicators for assessing and reducing water losses in North America, based in large part on the methods and indicators developed by the International Water Association (IWA). However, many utilities and regulators still use the old, inaccurate, %NRW indicator. A robust, quantitative assessment of the technical rigor of water loss indicators was needed but could not be found in the literature. So, an innovative approach was developed, using Frontier Analysis which provided such a score of ‘technical rigor’. This paper presents this method, applied to three datasets from North America, assessing 15 candidate indicators for total water losses, apparent losses and real losses. The results provide quantitative ‘scores’ of the technical rigor of the candidate indicators. Indicators with relatively high scores align with indicators used in the IWA best practices. Other indicators, such as the %NRW indicator, were found to have low technical rigor. The conclusion of the paper summarizes the rigorous indicators, and suggests areas for further application of this method, and for further research.

The effective use of data analytics in an advanced compressor performance and degradation monitoring system

2018 ◽  
Vol 58 (2) ◽  
pp. 723
Author(s):  
Radika Lucas ◽  
Andy Jones ◽  
Wesley Ford ◽  
Matt Doyle
Keyword(s):  
Performance Indicators ◽  
Joint Venture ◽  
Parameter Analysis ◽  
Major Step ◽  
Multi Stage ◽  
Degradation Monitoring ◽  
Work Input ◽  
Compressor Performance ◽  
Inlet Conditions ◽  
And Performance

Origin is the upstream operator and joint venture partner in Australia Pacific LNG. Origin’s integrated gas operations require reliable, sustainable delivery of gas to the downstream LNG facility on Curtis Island. This scale of operation requires establishing a ‘single source of truth’ regarding compressor condition and performance while achieving maximum and reliable compression capacities. Therefore, capability of monitoring performance of centrifugal compressors across the fleet is considered an essential component of production surveillance. Xodus leveraged Origin’s OSIsoft PI AF (PI Historian Asset Framework) tool. This system was used to build a compressor performance and degradation monitoring tool to accurately identify early indications of degradation in a multi-stage centrifugal compression train. The tool utilises live data from the PI historian to calculate key performance indicators which define compressor and driver operation. Dimensionless parameter analysis allows Origin to accurately quantify performance degradation regardless of variations in plant inlet conditions at each gas processing facility. Deviation from baseline performance in dimensionless parameters such as polytropic efficiency, work input number and polytropic head coefficient is used to quantify capacity losses, additional power consumption and increase in suction pressure. The tool provided the ability to use performance indicators to confidently determine the mode and extent of compressor degradation and prevent accelerated fouling which can lead to premature bundle changes. Also, this information helps streamline and has led to a major step change for the decision-making process concerning maximum production from rotating equipment. Additionally, this allowed operations to be confident on the condition of the compressor bundle, continue operation with higher capacities during high demand periods and ensure compressor bundle changeout is optimised for availability and economic aspects.

scholarly journals Object Detection of Road Assets Using Transformer-Based YOLOX with Feature Pyramid Decoder on Thai Highway Panorama

Information ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 5
Author(s):  
Teerapong Panboonyuen ◽  
Sittinun Thongbai ◽  
Weerachai Wongweeranimit ◽  
Phisan Santitamnont ◽  
Kittiwan Suphan ◽  
...  
Keyword(s):  
Language Processing ◽  
Best Practice ◽  
State Of The Art ◽  
Data Set ◽  
Image Patches ◽  
Feature Pyramid ◽  
And Performance ◽  
Deep Learning Network ◽  
Training Objective ◽  
Fine Tune

Due to the various sizes of each object, such as kilometer stones, detection is still a challenge, and it directly impacts the accuracy of these object counts. Transformers have demonstrated impressive results in various natural language processing (NLP) and image processing tasks due to long-range modeling dependencies. This paper aims to propose an exceeding you only look once (YOLO) series with two contributions: (i) We propose to employ a pre-training objective to gain the original visual tokens based on the image patches on road asset images. By utilizing pre-training Vision Transformer (ViT) as a backbone, we immediately fine-tune the model weights on downstream tasks by joining task layers upon the pre-trained encoder. (ii) We apply Feature Pyramid Network (FPN) decoder designs to our deep learning network to learn the importance of different input features instead of simply summing up or concatenating, which may cause feature mismatch and performance degradation. Conclusively, our proposed method (Transformer-Based YOLOX with FPN) learns very general representations of objects. It significantly outperforms other state-of-the-art (SOTA) detectors, including YOLOv5S, YOLOv5M, and YOLOv5L. We boosted it to 61.5% AP on the Thailand highway corpus, surpassing the current best practice (YOLOv5L) by 2.56% AP for the test-dev data set.

scholarly journals IWA best practice and performance indicators for water utilities in Serbia: Case study Pirot

2008 ◽  
Vol 6 (1) ◽  
pp. 37-50 ◽  
Author(s):  
Dragan Radivojevic ◽  
Dragan Milicevic ◽  
Borislava Blagojevic
Keyword(s):  
Water Loss ◽  
Best Practice ◽  
Task Force ◽  
Traditional Approach ◽  
Water Utilities ◽  
Basic Principles ◽  
Technical Performance ◽  
System Input ◽  
And Performance

Active water loss management has become one of the primary interests of the water utilities in the world. Due to efforts of the IWA Task Force in the last decade, traditional approach of water loss expression in percentage of system input values has been proven to be misleading in may cases, and new way of performance measuring and benchmarking is proposed. This paper presents the basic principles of this methodology and results of the first step in attempt to approach Serbian water utilities performance according to new standards. Pirot water supply system is used as a case study to estimate pressure reducing impact on technical performance indictor values before introducing active leakage control.

scholarly journals Comparative analysis of models and performance indicators for optimal service facility location

2021 ◽  
Vol 145 ◽  
pp. 102174
Author(s):  
Edoardo Fadda ◽  
Daniele Manerba ◽  
Gianpiero Cabodi ◽  
Paolo Enrico Camurati ◽  
Roberto Tadei
Keyword(s):  
Comparative Analysis ◽  
Facility Location ◽  
Performance Indicators ◽  
Service Facility ◽  
Optimal Service ◽  
And Performance
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