Trees are not only aesthetically pleasing but also play a vital role in our ecosystem. However, they can pose risks if they are not effectively managed, especially in urban environments where they are near people and property. Tree Risk Management Planning is a crucial aspect of tree management and maintenance, aimed at minimising the potential harm or damage caused by tree failures. By implementing a Tree Risk Management Plan (TRMP) using KaarbonTech’s Tree SMART solution and Risk SMART function, the risk of injury or property damage can be significantly reduced.
Tree SMART
Tree SMART helps monitor the condition of trees and then manage the associated risk. Helping to identify the best survey methods and then allowing a risk-based approach to management, Tree SMART provides accurate data to enable efficient management of the tree stock as well as monitoring ash dieback and assessing tree fall risk across the managed area. Tree SMART seamlessly integrates with other platforms and uses clear and simple filtering for reporting. Accurate modelling increases confidence in management planning.
Risk SMART function
Risk SMART is an advanced system that incorporates SMART technology into tree risk management practices as part of Tree SMART. It uses data analysis, predictive modelling, and real-time monitoring to enhance the effectiveness and efficiency of risk management efforts. Risk SMART functionality enables proactive identification of potential risks, precise risk assessment, and optimised allocation of resources for risk mitigation.
Legislation
Several laws and regulations highlight the importance of tree risk management, covering the many aspects that should be considered as part of the plan:
The Occupiers Liability Act (1957 and 1984) imposes a duty of care on landowners to ensure the safety of visitors and trespassers.
The Town and Country Planning Act (1990) and Town and Country Planning (Trees) Regulations (1999) provide provisions for protecting trees that contribute to public amenities.
The Highways Act (1980) and the Local Government (Miscellaneous Provisions) Act (1976) grant local authorities the power to address trees that pose a risk to highways, individuals, or property.
The Wildlife and Countryside Act (1981) and other related regulations enforce obligations for protecting wildlife species and habitats.
The Health and Safety at Work Act (1974) requires employers to ensure the safety and welfare of employees and visitors.
The Corporate Manslaughter and Corporate Homicide Act (2007) holds organisations accountable for gross negligence leading to fatalities.
Surveying Requirements
To effectively manage tree risks, regular surveys should be carried out in areas where people or property could be at risk. Tree SMART enables automated data collection through various sensors and remote monitoring systems. This data is then analysed using advanced algorithms to identify potential risks and prioritise areas for inspection. The risk zone map, generated within Risk SMART, categorises zones into priority levels, based on the probability of harm or damage. Factors such as use frequency and potential harm are considered in the prioritisation process. Inspection frequencies may vary, ranging from every two years for high-priority zones to every five years for low-risk zones. Surveys should also be conducted after severe weather conditions and for trees with progressive disorders.
Surveying Criteria
During surveys, a visual inspection is carried out using the Visual Tree Assessment (VTA) method, supported by Tree SMART technology. The VTA method involves three stages:
Visual inspection for defect symptoms and vitality,
Thorough examination if a defect is suspected, and
Measurement and evaluation of the defect's impact on tree strength.
Risk SMART technology assists surveyors by providing real-time data analysis, historical data comparisons, and predictive modelling for enhanced accuracy in defect identification and risk assessment. The surveyor records relevant information for each tree, such as species, age class, condition, recommended tree works, and priority for completion of those works.
Work Recommendations
Based on the survey findings, recommendations for necessary tree works are made. Risk SMART supports the decision-making process by providing risk scores, cost-benefit analyses, and resource allocation. The recommendations are categorised into urgent/immediate, high/3 months, medium/6 months, and low/1-year priorities. Urgent works address imminent risks, while high and medium priorities focus on mitigating potential harm or damage. Low-priority works are essential for the safe use of the site or adjacent properties and may include preventive measures.
Successful tree planting with a Tree Risk Management Plan
Tree Risk Management, supported by Tree SMART, is a critical component of tree management and maintenance. By adhering to relevant legislation, implementing a comprehensive Tree Risk Management Plan with Risk SMART technology, and using advanced data analysis and predictive modelling, the potential risks associated with trees can be minimised. Regular surveys, effective prioritisation, and timely execution of recommended works contribute to safer environments where trees coexist with people and property.