{"status":"OK","data":{"id":18616,"identifier":"LJX9E","persistentUrl":"https://hdl.handle.net/1902.6/LJX9E","protocol":"hdl","authority":"1902.6","separator":"/","publisher":"Harvard Dataverse","publicationDate":"2011-12-13","storageIdentifier":"file://1902.6/LJX9E","effectiveDatasetFileCountLimit":100000,"datasetFileUploadsAvailable":99999,"datasetType":"dataset","locks":[],"latestVersion":{"id":14616,"datasetId":18616,"datasetPersistentId":"hdl:1902.6/LJX9E","datasetType":"dataset","storageIdentifier":"file://1902.6/LJX9E","versionNumber":1,"internalVersionNumber":1,"versionMinorNumber":0,"versionState":"RELEASED","latestVersionPublishingState":"RELEASED","deaccessionLink":"","productionDate":"","lastUpdateTime":"2011-12-13T20:29:58Z","releaseTime":"2011-12-13T00:00:00Z","createTime":"2011-02-20T14:16:24Z","publicationDate":"2011-12-13","citationDate":"2011-12-13","effectiveDatasetFileCountLimit":100000,"datasetFileUploadsAvailable":99999,"termsOfUse":"This dataset is made available with limited information on how it can be used. You may wish to communicate with the Contact(s) specified before use.","specialPermissions":"None","restrictions":"For educational, non-commercial use only.","fileAccessRequest":false,"metadataBlocks":{"citation":{"displayName":"Citation Metadata","name":"citation","fields":[{"typeName":"title","multiple":false,"typeClass":"primitive","value":"Twin Peaks Tunnel assessment map, San Francisco, California 1927 (Raster Image)"},{"typeName":"author","multiple":true,"typeClass":"compound","value":[{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"Harvard Map Collection, Harvard College Library"}},{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"O'Shaughnessy, M. M. (Michael Maurice), 1864-1934."}}]},{"typeName":"datasetContact","multiple":true,"typeClass":"compound","value":[{"datasetContactEmail":{"typeName":"datasetContactEmail","multiple":false,"typeClass":"primitive","value":"N/A"}}]},{"typeName":"dsDescription","multiple":true,"typeClass":"compound","value":[{"dsDescriptionValue":{"typeName":"dsDescriptionValue","multiple":false,"typeClass":"primitive","value":"This layer is a georeferenced raster image of the historic paper map entitled: Map of the City and County of San Francisco : Twin Peaks Tunnel assessment map, prepared by the Board of Public Works; M.M. O'Shaughnessy, City Engineer, 1927. It was published by Board of Public Works in 1927. Scale [ca. 1:35,000]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the California Zone III State Plane Coordinate System NAD83 (in Feet) (Fipszone 0403). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, railroads, tunnels, drainage, selected public buildings, city block numbers, land assessment figures, cemeteries, parks, and more. Relief is shown by hachures. Includes inset: Map showing the boundaries of the city and county of San Francisco. Includes monetary assessment for cost of tunnel. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes."}}]},{"typeName":"topicClassification","multiple":true,"typeClass":"compound","value":[{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Maps"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Human settlements"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Cities and towns"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Land use"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Landforms"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Infrastructure (Economics)"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Transportation"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Bodies of water"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Tunnels"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"imageryBaseMapsEarthCover"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"ISO 19115 Topic Category"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"transportation"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"ISO 19115 Topic Category"}}]},{"typeName":"producer","multiple":true,"typeClass":"compound","value":[{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"Harvard Map Collection, Harvard College Library"}},{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"Harvard Map Collection, Harvard College Library"}},{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"O'Shaughnessy, M. 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(Michael Maurice), 1864-1934."}}]},{"typeName":"productionDate","multiple":false,"typeClass":"primitive","value":"N/A"},{"typeName":"productionPlace","multiple":true,"typeClass":"primitive","value":["Cambridge, Massachusetts"]},{"typeName":"distributor","multiple":true,"typeClass":"compound","value":[{"distributorName":{"typeName":"distributorName","multiple":false,"typeClass":"primitive","value":"Harvard Geospatial Library"}}]},{"typeName":"timePeriodCovered","multiple":true,"typeClass":"compound","value":[{"timePeriodCoveredStart":{"typeName":"timePeriodCoveredStart","multiple":false,"typeClass":"primitive","value":"1927"}}]},{"typeName":"kindOfData","multiple":true,"typeClass":"primitive","value":["map"]}]},"geospatial":{"displayName":"Geospatial Metadata","name":"geospatial","fields":[{"typeName":"geographicCoverage","multiple":true,"typeClass":"compound","value":[{"otherGeographicCoverage":{"typeName":"otherGeographicCoverage","multiple":false,"typeClass":"primitive","value":"California"}}]},{"typeName":"geographicBoundingBox","multiple":true,"typeClass":"compound","value":[{"westLongitude":{"typeName":"westLongitude","multiple":false,"typeClass":"primitive","value":"-122.536822"},"eastLongitude":{"typeName":"eastLongitude","multiple":false,"typeClass":"primitive","value":"-122.345211"},"northLatitude":{"typeName":"northLatitude","multiple":false,"typeClass":"primitive","value":"37.820547"},"southLatitude":{"typeName":"southLatitude","multiple":false,"typeClass":"primitive","value":"37.699441"}}]}]},"socialscience":{"displayName":"Social Science and Humanities Metadata","name":"socialscience","fields":[{"typeName":"samplingProcedure","multiple":false,"typeClass":"primitive","value":"The digital TIFF image was georeferenced to common reference points located on digital vector shapefiles. Vector shapefiles were downloaded from the San Francisco Enterprise GIS website which is the official public portal for the city's geospatial data. Additional shapefiles from ESRI Data and Maps 2005 and NOAA Vector Shoreline were used if necessary. For this image, the following vector shapefile(s) were used as base maps for reference: San Francisco Enterprise GIS San Francisco Street Centerlines 2006. The image was georeferenced to and stored in the NAD83 State Plane California Zone III (feet) (FIPS 0403) coordinate system. ArcMap 9.2 software was utilized for the georeferencing process, and a .tfwx (world file) and an .aux.xml file were automatically generated and saved in association with the digital image. Please note that while the image is stored in State Plane coordinates, the projection will need to be defined by the user in order to display the image with other projected data."}]}},"files":[{"description":"","label":"TIFF","restricted":false,"version":1,"datasetVersionId":14616,"dataFile":{"id":2337602,"persistentId":"","filename":"TIFF","contentType":"application/octet-stream","friendlyType":"Unknown","filesize":0,"description":"","storageIdentifier":"http://hgl.harvard.edu:8080/HGL/jsp/HGL.jsp?action=VColl&VCollName=G4364_S5P24_1927_O8","rootDataFileId":-1,"md5":"","checksum":{"type":"MD5","value":""},"tabularData":false,"creationDate":"2015-04-08","publicationDate":"2011-12-12","lastUpdateTime":"2011-12-13T20:29:58Z","fileAccessRequest":false}}]}}}