HG ObstacleID Service

Identifying hazards and obstacles in the airspace around your aerodrome can be challenging and can impact CAA compliance. We can help you stay CAA compliant.

Harrison Grierson’s combined Survey and Digital services for Aerodrome Obstruction Survey and Analysis can help you to ensure safety and compliance, with value-added tools for informed decision-making and hazard management.

Obstacle Limitation Surfaces (OLS) 

Harrison Grierson are your trusted partner in OLS/VSS obstruction surveying. Our services include:

• Capture of all potential hazards and obstacles in the aerodrome’s vicinity using industry-leading high-resolution UAV and ground survey technologies.

• Accurate, efficient, and repeatable digital analysis of obstacles in relation to defined surfaces (e.g. OLS/ VSS).

• Forecasting of tree and vegetation growth including OLS/VSS incursion over time.

• Generation of digitised OLS surfaces to CAA AC139 regulation standards.

• Production of verified obstacle survey drawings and associated digital outputs (e.g. GIS data).

• Ongoing maintenance of aerodrome ‘As-Built’ plans, visualizations & 3D models.

Real-world data for real world risk management 

HG provides additional services and digital tools to aid you in the management of risks and stakeholder communications including:

• Interacting with 3D survey models and hazard information online, anytime, anywhere.

• Automated identification of hazard affected properties, online hazard maps and owner information.

• Online recording of hazard remediation actions and status.

• Mobile applications that allow staff to view maps, locate hazards and update information on site.

• Integration with GIS and asset management systems.