Lidar Unlocks Subterranean Philadelphia


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Lidar News by Stu Rich, Penbay--Center City in Philadelphia, PA find lidar a speedy way to add 3D georeferenced data to their city-ArcGIS geodatabase.

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Lidar Unlocks Subterranean Philadelphia

  1. 1. This is a frame from a 3D video data set that wascreated for the entire captured area. This deliverableis of particular interest to the public safety communityfor planning and preparedness workflows.Lidar Unlocks Subterranean Philadelphia C The City uses a blend enter City in Philadelphia is a to build up the area while at the same of robotics and GIS for confluence of transportation, time making certain the downtown an innovative project shopping, business and remains ready for business every day. below Market Street government agency activity, with several To effectively serve the city, including multi-level spaces (including under- this bustling area, City staff relies on ground) within a few blocks. The fifth their GIS, which is based on Esri ArcGIS. biggest region in the nation, Center City Like most traditional GIS installations also boasts the third-largest downtown however, theirs did not include data for population. The City of Philadelphia is the insides of the Center City buildings committed to encouraging business and or the vast infrastructure under the real estate development in the area and streets. In order to maintain and grow By Stu Rich has embarked on an innovative project the City effectively, staff need a complete Displayed with permission • LiDAR Magazine • Vol. 2 No. 2 • Copyright 2012 Spatial Media •
  2. 2. A 3D LiDAR point cloud that is dimensionally accurate in real-world coordinates will be used as a beginning framework for the derivation ofmultiple data sets used for architecture, engineering, construction planning, facilities asset inventories, emergency action planning and realproperty space planning.view of the infrastructure—both inside develop spatially accurate floor map data will be used as a beginning dimensionaland out—of buildings, railways and of the underground infrastructure that framework for the derivation of multiplesurrounding areas for their facilities connects several notable buildings along data sets from architecture, engineering,management, public safety, space Market Street in Philadelphia. and construction planning to facilitiesplanning and real property departments. PenBay provided this data to the City asset inventories, emergency action PenBay Solutions, an Esri partner in a building information system data planning, and real property space plans.headquartered in Brunswick, Maine, was model (BISDM)-compliant data set, This Also provided to the City is a set ofcontracted by the City to provide facility gives the City the capability to more spherical images for the entire capturedmanagement mapping services for a pilot easily extend their existing GIS data area. This deliverable should be of particu-project aimed at testing the effectiveness for a holistic, 3D GIS view of the City’s lar interest to the public safety communityof a total 3D GIS solution. This service busiest area when needed. Providing for planning and preparedness workflows.included interior data collection utilizing data in a structured format allows City This deliverable also provides assistance toan innovative robotic platform employ- staff to address issues more effectively facilities managers in condition assess-ing 3D LiDAR and spherical imagery going forward. ment and asset, coupled with advanced Last includes a set of in-building floorglobal positioning systems (GPS) and One cloud—many uses maps of the captured area. This deliver-inertial measurement unit (IMU) This pilot project includes several able should be of interest to real propertysystems to develop vector floor map data innovative deliverables. and space planners, as well as publicfor specific areas of interest. The specific First is a 3D LiDAR point cloud safety. This provides the City a uniqueplatform used was the Trimble TIMMS that will be dimensionally accurate in view of their indoor space with referencesystem. The focus of this effort was to real-world coordinates. This deliverable to the surrounding landscape. Displayed with permission • LiDAR Magazine • Vol. 2 No. 2 • Copyright 2012 Spatial Media •
  3. 3. The City of Philadelphia can analyze and manage their building infrastructure by using accurate and comprehensive spatial data informationUnderstanding the inside to fire extinguishers and other components client, developed a detailed list ofmake sense of outside space found within the rooms; and spherical priorities, points of contact, accessThe City’s challenge was to understand images that are collected to guide anyone dependencies, and geographic proximitytheir building infrastructure better. They who needs to access the space, such as that allowed for the creation of a projectare interested in seeing the relationship public safety officials, so they can get a real plan and schedule to capture the data.between: pedestrian concourses with sense of what a space looks like. The decision was made to operate oneplatforms, corridors, stair locations, In order to effectively plan and execute two-staff crew onsite under the control ofand ramps; ingress and egress points; this project, a site assessment and the project manager. This plan optimizedemergency access and air vent facilities; requirements validation was conducted the use of PenBay and client staff so thatconnections between levels. Partial at the client site. The goals of this activity there would be a minimal impact oninteriors of a minimum of 3 buildings were to validate deliverable requirements building occupants, and client resources.that connect to the defined pilot area; and define data collection specifications;and in-building floor maps. To effectively identify project logistical support Collecting data duringanalyze and manage this critical public requirements, discuss and validate business hoursinfrastructure they need access to accurate project staging, access, and scheduling Once the dates for the survey visit wereand comprehensive spatial data informa- dependencies and visually inspect determined—the survey itself tooktion, including varied datasets that include project areas of interest. place in the fall of 2010—PenBay starteddata about space like rooms and how Upon completion of the site visit, the logistics necessary to mobilize thethey are being used; asset data, such as PenBay staff, in conjunction with the equipment and staff needed to execute Displayed with permission • LiDAR Magazine • Vol. 2 No. 2 • Copyright 2012 Spatial Media •
  4. 4. ADVERTISER  INDEX 3D LASER MAPPING 29 www.3dlasermapping.comthe data collection phase of the project. robotics, PenBay was able to measure BLUE MARBLE GEOGRAPHICS 9Upon arrival at the client site, the survey pertinent space in a fraction of the www.globalmapper.comteam closely coordinated their collection time it takes with traditional collectionactivities with the client. Since data methods. Since these facilities are CARLSON SOFTWARE 21collection happened mostly at night in complex and have a high volume of www.carlsonsw.comorder to keep with Center City’s mission pedestrian traffic, minimal surveyof not impacting the community, time and disruption was a critical CARDINAL SYSTEMS IBCsecurity escorts were provided by the factor that PenBay was able to provide for safety as well as to provide with this highly efficient spatial dataunencumbered access to all areas, collection method. The floor maps, or EARTHEYE 15such as the subway system and secure georeferenced space plans, created by www.eartheye.combuildings. Staff took only 20 hours to PenBay’s in-building data collectioncollect all the data necessary for the methodology were provided to give ERDAS 5, 33pilot project. the City an accurate understanding of After completion of the data their current building space and floorcollection, PenBay initiated the data materials within them. GEOCUE 25 www.geocue.comprocessing workflows that took the raw With their city agency experience,LiDAR point cloud data and spherical PenBay provided the City with a GISimagery captured in the field and created solution that employs a spatial data GEODIGITAL 7 www.geodigital.comseveral useful data products including collection technology to collect a host ofCAD (AutoCAD) and 3D BIM (Revit) information in one pass. The result is afiles of the area of interest and of course, standards-compliant geodatabase useful LEICA GEOSYSTEMS 41 www.leica-geosystems.usthe primary deliverable of an ArcGIS to multiple city agencies as an extensiongeodatabase to make the files easily of their existing GIS. LIZARDTECH 43accessible to the City staff over the web. PenBay helped the City collect and Through this pilot, PenBay was able develop GIS-ready data sets in the formto demonstrate how critical deliverables of 2D and 3D map documents that MICROSOFT 27can be created to support the City facili- should be of particular interest to several www.iFlyUltraCam.comties management initiative, including: City service functions including Publiccreating space definitions defining where Safety, Evacuation Planning, Facility OPTECH 17, BCboundaries such as hallways and rooms Management and Lease Management www.optech.cabeginning and end within the City GIS; to make better informed decisions incapturing floor plan data to represent the future. The City now has a model RIEGL USA 3interior space and structure accurately; for a standards-compliant geodatabase www.rieglusa.comand performing facility surveys quickly, that provides a holistic GIS view of itssafely and cost effectively. This survey subterranean space and assets. SPAR INTERNATIONAL 23provided the client with a clear and Stuart Rich is Chief Technology Officer ataccurate view of how their underground PenBay with more than 15 years experi-infrastructure links to its above ground ence developing database applications and TOPCON IFC-1buildings and roads. geographic information systems (GIS) for government and commercial organizations across the US and internationally. He hasBuilt for the future several years of extensive GIS experience, VIRTUALGRID 19 with an expertise in ESRI technology and a www.vrmesh.comIn total, PenBay collected 340,000 focus on project management, data analysissquare feet of designated infrastructure. and modeling, business process analysis andUsing a combination of GIS and workflow methodology design. Displayed with permission • LiDAR Magazine • Vol. 2 No. 2 • Copyright 2012 Spatial Media •