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TxWRAP/functional_wui (MapServer)

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Service Description: Functional WUI represents a classification of the land near buildings* into zones that generally describe wildfire exposure to structures and risk mitigation activities appropriate for each. Primary Exposure — The Primary Exposure zone identifies where structures are immediately nearby (within 75m of) burnable land cover. Reducing fire intensity and ember production in this zone would reduce the exposure of nearby buildings to heat and embers. Buildings in this zone also require hardening of the structure to resist ignition. Secondary Exposure — The Secondary Exposure zone identifies land where structures are within 1500 m of burnable land cover, meaning homes in this zone could be impacted by lofted embers or by home-to-home spread even though they are not immediately located with vegetation types classified as burnable. Structures in this zone would benefit from the hardening of the structure to resist ignition from embers and nearby structures, but defensible space is usually not required due to the heavily developed nature of the zone. Sources of Ember Load to Buildings — These are areas of burnable land cover that produces embers capable of reaching nearby buildings. Ember production is a function of fire type and intensity, and ember travel is a function of wind speed and direction. Fuel treatment in this zone is a priority for reducing ember load to the nearby buildings. Wildfire Transmission Zone — The Wildfire Transmission Zone is the unpopulated land within about 2.4 km of a group of structures. Fires that originate within or spread to the Wildfire Transmission Zone have an immediate threat of reaching the nearby structures; fuel treatments that slow fire spread in this zone can reduce risk to these structures. Low-to-No Exposure — The Low-to-No Exposure zone identifies where structures beyond 1500m from a large (500 ha) contiguous blocks of burnable land cover. Flames—even from home-to-home spread—and embers have a relatively low likelihood of reaching structures in this zone, but smoke and evacuations could still impact this area. Water — Classified as Non-burnable Water (NB8) in the Surface Fuel Map. No Data — These areas are beyond the Wildfire Transmission Zone and generally considered far enough from communities to not pose a threat to structures. *Buildings used in producing Functional WUI are defined as greater than 40 m2. Data Source: Texas Wildfire Risk Assessment, Pyrologix 2023 (includes fuel disturbances through 2022)

Map Name: Functional WUI

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Copyright Text: Primary data contact: Texas A&M Forest Service, Forest Resource Protection Division, Applied Technology Department. Send an email to TxWRAP-Support@tfs.tamu.edu for inquires. Visit www.TexasWildfireRisk.com for additional information.This dataset was developed for the Texas Wildfire Risk Assessment by Pyrologix LLC (www.pyrologix.com), a subsidiary of Vibrant Planet (www.vibrantplanet.net).

Spatial Reference: 102100  (3857)  LatestVCSWkid(0)


Single Fused Map Cache: true

Tile Info: Storage Info: Initial Extent: Full Extent: Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info: Supports Dynamic Layers: true

Resampling: true

MaxRecordCount: 2000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON, PBF

Supports Query Data Elements: true

Min Scale: 5.91657527591555E8

Max Scale: 0

Min LOD: 0

Max LOD: 17

Supports Datum Transformation: true



Child Resources:   Info   Dynamic Layer

Supported Operations:   Export Map   Identify   QueryLegends   QueryDomains   Find   EstimateExportTilesSize   ExportTiles   Return Updates