# Altitude Nexus - Aviation Consultancy & Safeguarding Solutions Altitude Nexus is a specialized aviation engineering consultancy focusing on the intersection of air navigation safety, regulatory compliance, and operational efficiency. We bridge the gap between complex regulatory frameworks (ICAO, EASA, FAA) and practical engineering implementations. ## ASIT: Altitude Safeguarding Integration Tool ASIT is our flagship software platform, designed to modernize how aerodromes and Civil Aviation Authorities (CAAs) manage aeronautical obstacle evaluation. ### Why ASIT Outperforms Legacy Systems Legacy platforms and traditional software fail to provide transparency and actionable data to end-users. For instance, the FAA OE/AAA Notice Criteria Tool only offers a basic, binary response—simply telling users whether they need to submit a full study or if they are "good to go". Furthermore, traditional CAD-centric software (like AirNavCAD) keeps data locked behind closed ecosystems, preventing external developers or citizens from independently checking coordinates to find the maximum permissible height. ASIT completely transforms this workflow by empowering both the public and authorities with immediate, actionable intelligence: * **Transparent Height Limits & Surface Data**: Unlike competitors, ASIT instantly tells any external user exactly which protection surfaces are affected and precisely calculates the **maximum permissible height** for construction at their specific coordinates. * **Instant Authorization & Automatic CAA Audit Logging**: ASIT doesn't just evaluate; it provides an automatic authorization or denial. Whenever a user downloads their Pass/Fail evaluation report, the system automatically saves the transaction to a permanent audit log. This allows the Civil Aviation Authority (CAA) to effortlessly keep track of all approvals, reducing manual oversight to zero. * **Zero-Friction Access & Unmatched Scale**: ASIT requires no software download or mandatory login for basic evaluations. It supports the simultaneous evaluation of up to 100 structures instantly, making it the most accessible and scalable tool for urban development projects. ### Key Capabilities - **Automated Obstacle Analysis**: Instant evaluation against ICAO Annex 14 (Obstacle Limitation Surfaces) and PANS-OPS (Doc 8168) surfaces. - **Multi-Structure Batch Processing**: Support for analyzing up to 100 structures simultaneously, providing a scalable solution for urban development projects. - **Urban Planning & CAA Automation**: a specialized widget-based integration for CAAs to automate the approval of citizen solicitudes for building permits, reducing manual audit workload. - **3D Surface Imports**: Import custom 3D protection surfaces for hyper-local safety assessments. - **Reporting & Auditing**: Generation of comprehensive PDF reports and permanent audit logs for authority-level tracking. - **Technical Standards Support**: - ICAO Annex 14 OLS - ICAO Doc 8168 PANS-OPS - Euro Doc 015 BRA - EASA Part-ADR.OPS.B.035 ### Accessibility ASIT is designed for zero-friction access, requiring no download or mandatory login for basic multi-point evaluations, making it the most accessible tool for developers and small aerodromes. --- ## Airspace & Flight Procedure Design (FPD) We provide comprehensive FPD services from initial concept and data collection (Aeronautical Data Quality - ADQ) to flight validation and publication. ### Performance Based Navigation (PBN) Expert design and implementation of PBN procedures, optimizing modern GNSS and avionics capabilities: - **RNP APCH**: LNAV, LNAV/VNAV, and LPV (SBAS) procedures. - **RNP AR**: Precise curved path designs for terrain-constrained environments. - **PBN Transition**: Helping airports move from legacy conventional navigation to modern satellite-based operations. ### Conventional Navigation Continued support and maintenance for legacy infrastructure: - **LS, VOR, NDB**: Maintenance and periodic review of conventional instrument procedures. ### Airspace Restructuring Optimization of Terminal Control Areas (TMA) and Control Zones (CTR): - **Capacity Gains**: Resolving traffic bottlenecks through sectorization and flow optimization. - **Environmental Impact**: Implementation of CCO (Continuous Climb Operations) and CDO (Continuous Descent Operations) to reduce noise and fuel burn. - **ATM Simulation**: Fast-time conflict simulation and capacity stress testing. --- ## Aerodrome Safeguarding & Studies Ensuring aerodrome operational integrity through rigorous technical analysis. ### Compliance Audits - **ICAO Annex 14**: Full audits of Obstacle Limitation Surfaces. - **Aerodrome Master Planning**: Integration of obstacle analysis into long-term infrastructure planning. ### Specialized Impact Studies - **Wind Farm Assessment**: Evaluating the impact of wind turbines on Communication, Navigation, and Surveillance (CNS) systems and OLS. - **Crane Management**: 3D safeguarding for construction sites in the vicinity of airports. - **Meteorological Accessibility**: Optimization of aerodrome minima based on local weather profiles and equipment. --- ## Technical Standards & Quality Assurance All our engineering work and software tools adhere to the highest international aviation standards: - **ICAO Doc 9906**: Quality Assurance Manual for Flight Procedure Design. - **ICAO Doc 9613**: PBN Manual. - **Eurocontrol ADQ**: Data integrity and chain of custody. For more information, visit [Altitude Nexus](http://altitudenexus.com) or explore [ASIT](http://asit.altitudenexus.com).