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LiDAR Surveying for
Local Government Units & Urban Planning
Accurate geospatial data is the foundation of effective governance. AB Surveying and Development partners with LGUs, city planning offices, and urban development authorities across the Philippines — providing the terrain data, hazard maps, and infrastructure inventories that power smarter, safer communities.
Challenges we solve
Common Challenges for LGUs & Urban Planners and How LiDAR Addresses Them
Challenges
LGUs lack the accurate terrain data needed for science-based hazard mapping
Urban infrastructure inventories are outdated, incomplete, or inaccessible
How LiDAR Helps
Aerial LiDAR produces sub-meter Digital Terrain Models that capture ground elevation with centimeter accuracy — even beneath tree canopy and dense urban structures. These DTMs are the gold standard input for flood inundation modeling, lahar flow simulation, and landslide susceptibility mapping, enabling LGUs to produce DRRM-compliant hazard maps with confidence.
Mobile LiDAR surveys capture complete road corridor geometry, pavement conditions, drainage structures, signage, and street assets at driving speed. The result is a detailed, georeferenced infrastructure inventory that integrates directly into city GIS systems, enabling data-driven maintenance planning and budget allocation.
CLUP and zoning maps are based on spatial data that no longer reflects ground conditions
LiDAR-derived land cover classification and updated terrain data give CLUP teams an accurate, current picture of the municipality. Combined with orthophoto mapping, planners can identify encroachments, update built-up area boundaries, and delineate protection zones for forests, watersheds, and agricultural land with precision that satellite imagery alone cannot provide.
Drainage and flood management planning lacks the spatial detail to be effective
High-resolution LiDAR terrain models reveal exact flow paths, depression areas, and drainage capacity constraints across entire urban catchments. Engineers use this data to design right-sized drainage infrastructure, simulate flood scenarios, and prioritize interventions — making every peso of drainage investment go further.
Post-disaster assessment and recovery planning is slow and inconsistent
Repeat aerial LiDAR surveys before and after disaster events enable precise change detection — identifying areas of deposition, erosion, structural collapse, and landslide extent. This data accelerates damage valuation, recovery planning, and DRR investment prioritization in the critical weeks after a disaster.
LiDAR Surveying Applications for LGUs and Urban Planning
From routine planning to disaster response, LiDAR data supports the full governance lifecycle of local governments.
Flood Hazard Mapping & Inundation Modeling
High-resolution DTMs as primary input for flood modeling — identifying flood-prone areas, depth estimates, and inundation extents for barangay-level hazard maps.
Road Network & Infrastructure Inventory
Mobile LiDAR capture of road geometry, drainage structures, culverts, signage, and street assets — building a complete, measurable infrastructure database.
Drainage Master Planning
Catchment delineation, flow direction mapping, and depression analysis for city-wide drainage system design — ensuring infrastructure investments are sized and placed where they matter most.
Coastal Zone & Estuary Mapping
Seamless land-to-water topographic coverage using Aerial Bathymetric LiDAR, supporting coastal zone management, storm surge modeling, and reclamation assessment for coastal LGUs.
Comprehensive Land Use Plan (CLUP) Data Support
Updated terrain, land cover, and built-up area data for CLUP preparation and revision — formatted to DHSUD and HLURB spatial data standards and ready for submission.
Tax Mapping & Property Assessment Support
High-resolution orthophoto map and Digital Surface Model — enabling identification of unregistered properties, verification of lot extents, and updating of the tax map for RPTA compliance and general revision.
Urban Growth & Land Cover Monitoring
Repeat LiDAR and orthophoto surveys to track urban expansion, monitor encroachment on protected and agricultural areas, and validate land classification changes over time.
Post-Disaster Damage Assessment
Change detection between pre- and post-event LiDAR surveys to quantify damage extent, erosion volumes, and infrastructure loss — formatted for NDRRMC and OCD reporting requirements.
What Our Clients Get:
3D Colorised Point Cloud Data
A point cloud data containing millions of precisely located points overlaid with orthophoto RGB creating a realistic 3D city model.
PROJECT SPOTLIGHT
Santa Rosa is a city of densely distributed structures undergoing a Comprehensive Land Use Plan (CLUP)
update a process that demands accurate, defensible baseline data.
Without a current base map, the planning office faced a compounding problem: every downstream decision —drainage design, zoning, infrastructure investment, tax mapping — was built on an incomplete and unverifiable
foundation.
After submitting the deliverables, ABSD voluntarily processed a full geo-rectified orthophoto mosaic, conducted supplemental marine surveys of the main river system using echosounders, and provided a dedicated laptop pre-installed with Global Mapper with hands-on training for city staff — none of which were in the original Terms of Reference.
AREA SURVEYED
5,700 has.
DATA ACQUISITION
1 day
AREA SURVEYED
36 days
Our Services
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We were amazed at how fast AB Surveying and Development's LiDAR mapping was as compared to conventional surveying methods.
With approximately 1,000 hectares of land area, the Kiangan, Ifugao project site was accurately generated as a topographic map and was very useful for the planning and design of the proposed Hucab Mini Hydro Electric Plant. The team was very accommodating and helpful in every step of the way, and they almost eliminated the need for physical site inspection because of their attention to detail!
Highly recommended to all our industry peers!
Patrick Talibon, Business Line Manager, Pacific Tech Solutions, Inc.