Revision to the UK Pipeline Quantitative Risk Assessment Guidelines IGEM/TD/2 and PD 8010-3

2014 ◽  
Author(s):  
Graham D. Goodfellow ◽  
Jane V. Haswell ◽  
Neil W. Jackson ◽  
Roger Ellis
Keyword(s):  
Risk Assessment ◽  
Land Use ◽  
Land Use Planning ◽  
Best Practice ◽  
Research Work ◽  
Quantitative Risk Assessment ◽  
External Interference ◽  
Common View ◽  
Failure Frequency ◽  
The Uk

The United Kingdom Onshore Pipeline Operators Association (UKOPA) was formed by UK pipeline operators to provide a common forum for representing pipeline operators interests in the safe management of pipelines. This includes ensuring that UK pipeline codes include best practice, and that there is a common view in terms of compliance with these codes. Quantitative risk assessment (QRA) is used by operators in the UK to determine if individual and societal risk levels at new developments adjacent to existing pipelines are as low as reasonably practicable (ALARP). In 2008 the UKOPA Risk Assessment Working Group developed codified advice on the use of QRA applied to land use planning assessments, which was published by the Institution of Gas Engineers & Managers (IGEM) and the British Standards Institute (BSI). This advice was designed to ensure a standard and consistent approach, and reduce the potential for disagreement between stakeholders on the acceptability of proposed developments. Since publication of IGEM/TD/2 and PD8010-3 in 2008, feedback from users of the guidance together with new research work and additional discussions with the UK safety regulator, the Health & Safety Executive (HSE), have been undertaken and the codified advice has been revised and reissued in June 2013. This paper describes the revisions to the guidance given in these codes in relation to: • Clarification on application • Update of physical risk mitigation measures (slabbing and depth of cover) • Update of HSE approach to Land Use Planning • Update of failure frequency data: ○ Weibull damage distributions for external interference ○ Generic failure frequency curve for external interference ○ Prediction of failure frequency due to landsliding The revised codes, and their content, are considered to represent the current UK best practice in pipeline QRA.

Development of Risk Assessment Code Supplements for the UK Pipeline Codes IGE/TD/1 and PD 8010

2008 ◽  
Author(s):  
Graham D. Goodfellow ◽  
Jane V. Haswell ◽  
Rod McConnell ◽  
Neil W. Jackson
Keyword(s):  
Risk Assessment ◽  
Land Use ◽  
Land Use Planning ◽  
Planning System ◽  
Mitigation Measures ◽  
Common View ◽  
Planning Stage ◽  
Operational Life ◽  
The Uk ◽  
The Impact

The United Kingdom Onshore Pipeline Operators Association (UKOPA) was formed by UK pipeline operators to provide a common forum for representing pipeline operators interests in the safe management of pipelines. This includes ensuring that UK pipeline codes include best practice, and that there is a common view in terms of compliance with these codes. Major hazard cross country pipelines are laid on 3rd party land, and in general have an operational life typically greater than 50 years. The land use in the vicinity of any pipeline will change with time, and buildings will be constructed adjacent to the pipeline route. This can result in population density and proximity infringements, and the pipeline becoming non-compliant with the code. Accordingly, a land use planning system is applied so that the safety of, and risk to, developments in the vicinity of major hazard pipelines are assessed at the planning stage. In the UK, the Health & Safety Executive (HSE) are statutory consultees to this process, and they set a quantitative risk-based consultation zone around major hazard pipelines, where the risks to people and developments must be assessed. Quantitative risk assessment (QRA) requires expertise, and the results obtained are dependent upon consequence and failure models, input data, assumptions and criteria. UKOPA has worked to obtain cross-stakeholder agreement on how QRA is applied to land use planning assessments. A major part of the strategy to achieve this was the development of supplements for the UK design codes IGE/TD/1 and PD 8010, to provide authoritative and accepted guidance on the risk analysis of: i) Site specific pipeline details, for example increased wall thickness, pipeline protection (such as slabbing), depth of cover, damage type and failure mode, and ii) The impact of mitigation measures which could be applied as part of the development. The availability of this codified advice would ensure a standard and consistent approach, and reduce the potential for disagreement between stakeholders on the acceptability of proposed developments. This paper describes the guidance given in these code supplements in relation to consequence modelling, prediction of failure frequency, application of risk criteria, implementation of risk mitigation and summaries the assessment example provided.

A Methodology for the Prediction of Pipeline Failure Frequency Due to External Interference

2008 ◽  
Author(s):  
C. Lyons ◽  
J. V. Haswell ◽  
P. Hopkins ◽  
R. Ellis ◽  
N. Jackson
Keyword(s):  
Damage Mechanism ◽  
External Interference ◽  
Gas Industry ◽  
Failure Frequency ◽  
Failure Data ◽  
Mechanics Model ◽  
The United Kingdom ◽  
Pipeline Failure ◽  
The Uk ◽  
Operational Failure

The United Kingdom Onshore Pipeline Operators Association (UKOPA) is developing supplements to the UK pipeline codes BSI PD 8010 and IGE/TD/1. These supplements will provide a standardized approach for the application of quantified risk assessment to pipelines. UKOPA has evaluated and recommended a methodology: this paper covers the background to, and justification of, this methodology. The most relevant damage mechanism which results in pipeline failure is external interference. Interference produces a gouge, dent or a dent-gouge. This paper describes the fracture mechanics model used to predict the probability failure of pipelines containing dent and gouge damage and contains predictions of failure frequency obtained using the gas industry failure frequency prediction methodologies FFREQ and operational failure data from the UKOPA fault database. The failure model and prediction methodology are explained and typical results are presented and discussed.

scholarly journals Implications of changing from grazed or semi-natural vegetation to forestry for carbon stores and fluxes in upland organo-mineral soils in the UK

2007 ◽  
Vol 11 (1) ◽  
pp. 61-76 ◽  
Author(s):  
B. Reynolds
Keyword(s):  
Land Use ◽  
Organic Carbon ◽  
Best Practice ◽  
Agricultural Soils ◽  
Relative Magnitude ◽  
International Studies ◽  
Best Practice Guidelines ◽  
Carbon Reservoir ◽  
Mineral Soils ◽  
The Uk

Abstract. In the UK, as organo-mineral soils are a significant store of soil organic carbon (SOC), they may become increasingly favoured for the expansion of upland forestry. It is important, therefore, to assess the likely impacts on SOC of this potentially major land use change. Currently, these assessments rely on modelling approaches which assume that afforestation of organo-mineral soils is "carbon neutral". This review evaluates this assumption in two ways. Firstly, UK information from the direct measurement of SOC change following afforestation is examined in the context of international studies. Secondly, UK data on the magnitude and direction of the major fluxes in the carbon cycle of semi-natural upland ecosystems are assessed to identify the likely responses of the fluxes to afforestation of organo-mineral soils. There are few directly relevant measurements of SOC change following afforestation of organo-mineral soils in the UK uplands but there are related studies on peat lands and agricultural soils. Overall, information on the magnitude and direction of change in SOC with afforestation is inconclusive. Data on the accumulation of litter beneath conifer stands have been identified but the extent to which the carbon held in this pool is incorporated into the stable soil carbon reservoir is uncertain. The effect of afforestation on most carbon fluxes is small because the fluxes are either relatively minor or of the same magnitude and direction irrespective of land use. Compared with undisturbed moorland, particulate organic carbon losses increase throughout the forest cycle but the data are exclusively from plantation conifer forests and in many cases pre-date current industry best practice guidelines which aim to reduce such losses. The biggest uncertainty in flux estimates is the relative magnitude of the sink for atmospheric carbon as trees grow and mature compared with that lost during site preparation and harvesting. Given the size of this flux relative to many of the others, this should be a focus for future carbon research on these systems.

Disablism, Planning, and the Built Environment

1993 ◽  
Vol 11 (2) ◽  
pp. 213-231 ◽  
Author(s):  
R F Imrie ◽  
P E Wells
Keyword(s):  
Land Use ◽  
Built Environment ◽  
Land Use Planning ◽  
Local Authority ◽  
Planning System ◽  
Political Agenda ◽  
The Political ◽  
Disabled People ◽  
The Uk

In the last decade access for disabled people to public buildings has become an important part of the political agenda. Yet, one of the main forms of discrimination which still persists against disabled people is an inaccessible built environment. In particular, statutory authorities have been slow to acknowledge the mobility and access needs of disabled people, and the legislative base to back up local authority policies remains largely ineffectual and weak. In this paper, the interrelationships between disability and the built environment are considered by focusing on the role of the UK land-use planning system in securing access provision for disabled people.

scholarly journals Cannabis in Canada: a best practice guide to planning for the legalization of recreational marijuana

2021 ◽  
Author(s):  
Alison Quigg
Keyword(s):  
Land Use ◽  
Best Practices ◽  
Land Use Planning ◽  
Best Practice ◽  
Retail Stores ◽  
Land Uses ◽  
Practice Guide ◽  
Recreational Marijuana ◽  
Different Levels ◽  
Production Facilities

When marijuana is legalized in Canada there will be land-use planning implications for municipalities. Different levels of government have different jurisdictional responsibilities regarding the legalization of recreational marijuana. One of the jurisdictional responsibilities of municipalities is land use planning and zoning. Two new land uses will be introduced to municipalities through the legalization of marijuana: recreational marijuana production facilities and recreational marijuana retail stores. For municipalities to control for the location of these uses, the land use legislation they enact must be able to co-exist with federal and provincial/territorial legislation and not result in any operational conflicts. This research paper provides a set of best practices to municipalities across Canada for how they should regulate these uses in their land use legislation. KEY WORDS: recreational marijuana legalization; marijuana retail stores; marijuana production facilities; land use planning; Canada.

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