f0c155f2e47dfeee55309f86733b7cb1 Aer_a2022v9n10p613.pdf 8befe3bd77fd6752697d77054bc8a88e272926ac Aer_a2022v9n10p613.pdf 9e72f20d2edb6c67a03c7d1b00e4df365344b7fabdce9b61ab047583c281d67a Aer_a2022v9n10p613.pdf Title: From Single Aircraft to Communities: A Neutral Interpretation of Air Traffic Complexity Dynamics Subject: At present, decision-making in ATM is fragmented between different stakeholders who have different objectives. This fragmentation, in unison with competing KPAs, leads to complex interdependencies between performance indicators, which results in an imbalance, with some of these indicators being penalized to the apparent benefit of others. Therefore, it is necessary to support ATM stakeholders in systematically uncovering hidden trade-offs between KPAs. Existing literature confirms this claim, but how to solve it has not been fully addressed. In this paper, we envision air traffic complexity to be the framework through which a common understanding among stakeholders is enhanced. We introduce the concept of single aircraft complexity to determine the contribution of each aircraft to the overall complexity of air traffic. Furthermore, we describe a methodology extending this concept to define complex communities, which are groups of interdependent aircraft that contribute the majority of the complexity in a certain airspace. Through use-cases based on synthetic and real historical traffic, we first show that the algorithm can serve to formalize and improve decision-making. Further, we illustrates how the provided information can be used to increase transparency of the decision makers towards different airspace users. In order to showcase the methodology, we develop a tool that visualizes different outputs of the algorithm. Lastly, we conduct sensitivity analysis in order to systematically analyse how each input affects the methodology. Keywords: ATM; air traffic complexity; spatiotemporal indicators; single aircraft complexity; graph theory; community detection Author: Ralvi Isufaj, Marsel Omeri, Miquel Angel Piera, Jaume Saez Valls and Christian Eduardo Verdonk Gallego Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Mon Oct 24 07:50:51 2022 CEST ModDate: Mon Oct 24 08:32:43 2022 CEST Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 27 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 4259317 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- ZKMAAC+URWPalladioL-Bold Type 1 Custom yes yes no 10 0 LPSODL+URWPalladioL-Roma Type 1 Custom yes yes no 15 0 ASLOPJ+URWPalladioL-Ital Type 1 Custom yes yes no 19 0 KDZWRK+CMBSY10 Type 1 Builtin yes yes no 23 0 MCBCCI+SourceSansRoman-Regular Type 1C Custom yes yes no 31 0 MCBCCM+SourceSansRoman.613wght Type 1C Custom yes yes no 35 0 MCBCCO+SourceSansRoman-Bold Type 1C Custom yes yes no 39 0 KLRPZQ+TimesNewRomanPS-BoldItalicMT Type 1C WinAnsi yes yes no 51 0 BCDEEE+ErasITC-Light TrueType WinAnsi yes yes no 79 0 OIJHFF+CMEX10 Type 1 Builtin yes yes no 171 0 SOSTRQ+CMR10 Type 1 Builtin yes yes no 175 0 NRUJNB+CMSY10 Type 1 Builtin yes yes no 179 0 PSANVF+CMMI10 Type 1 Builtin yes yes no 186 0 QQXUPP+PazoMath Type 1 Builtin yes yes no 190 0 BCDEEE+ErasITC-Light TrueType WinAnsi yes yes no 228 0 BCDEEE+Calibri TrueType WinAnsi yes yes no 280 0 BCDEEE+Calibri TrueType WinAnsi yes yes no 293 0 BCDEEE+Calibri TrueType WinAnsi yes yes no 307 0 BCDEEE+Calibri TrueType WinAnsi yes yes no 320 0 BCDEEE+Calibri TrueType WinAnsi yes yes no 329 0 BCDEEE+Calibri TrueType WinAnsi yes yes no 338 0 BCDEEE+Calibri TrueType WinAnsi yes yes no 360 0 BCDEEE+Calibri TrueType WinAnsi yes yes no 369 0 BCDEEE+Calibri TrueType WinAnsi yes yes no 378 0 Jhove (Rel. 1.22.1, 2019-04-17) Date: 2023-07-12 02:32:26 CEST RepresentationInformation: Aer_a2022v9n10p613.pdf ReportingModule: PDF-hul, Rel. 1.12.1 (2019-04-17) LastModified: 2023-07-11 17:30:58 CEST Size: 4259317 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 637 FreeObjects: 15 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@12f41634 Item: Title: Methodology Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@13c27452 Children: Item: Title: Spatiotemporal Graph-Based Complexity Indicators Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@262b2c86 Item: Title: Single Aircraft Complexity Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@371a67ec Item: Title: Detection of Complex Spatiotemporal Communities Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@5ed828d Item: Title: Experimental Setup Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@50d0686 Item: Title: Results Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7a3d45bd Children: Item: Title: Synthetic Traffic Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1e7c7811 Children: Item: Title: Pairwise Conflicts Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77ec78b9 Item: Title: Deconstructing Complex Communities Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1a3869f4 Item: Title: Flown Trajectories Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@a38d7a3 Children: Item: Title: Data Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77f99a05 Item: Title: The Effect of Regulations on Complex Communities Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@63440df3 Item: Title: Sensitivity Analysis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@3aeaafa6 Item: Title: Conclusions Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@76a3e297 Item: Title: References Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@4d3167f4 Info: Title: From Single Aircraft to Communities: A Neutral Interpretation of Air Traffic Complexity Dynamics Author: Ralvi Isufaj, Marsel Omeri, Miquel Angel Piera, Jaume Saez Valls and Christian Eduardo Verdonk Gallego Subject: At present, decision-making in ATM is fragmented between different stakeholders who have different objectives. This fragmentation, in unison with competing KPAs, leads to complex interdependencies between performance indicators, which results in an imbalance, with some of these indicators being penalized to the apparent benefit of others. Therefore, it is necessary to support ATM stakeholders in systematically uncovering hidden trade-offs between KPAs. Existing literature confirms this claim, but how to solve it has not been fully addressed. In this paper, we envision air traffic complexity to be the framework through which a common understanding among stakeholders is enhanced. We introduce the concept of single aircraft complexity to determine the contribution of each aircraft to the overall complexity of air traffic. Furthermore, we describe a methodology extending this concept to define complex communities, which are groups of interdependent aircraft that contribute the majority of the complexity in a certain airspace. Through use-cases based on synthetic and real historical traffic, we first show that the algorithm can serve to formalize and improve decision-making. Further, we illustrates how the provided information can be used to increase transparency of the decision makers towards different airspace users. In order to showcase the methodology, we develop a tool that visualizes different outputs of the algorithm. Lastly, we conduct sensitivity analysis in order to systematically analyse how each input affects the methodology. Keywords: ATM; air traffic complexity; spatiotemporal indicators; single aircraft complexity; graph theory; community detection Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Mon Oct 24 07:50:51 CEST 2022 ModDate: Mon Oct 24 08:32:43 CEST 2022 ID: 0x5dee822c73654d837978fee026b2251c, 0x5dee822c73654d837978fee026b2251c Filters: FilterPipeline: FlateDecode Images: Image: NisoImageMetadata: FormatName: image/png ImageWidth: 835 ImageHeight: 486 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Image: NisoImageMetadata: FormatName: image/png ImageWidth: 1218 ImageHeight: 673 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Image: NisoImageMetadata: FormatName: image/png ImageWidth: 2570 ImageHeight: 774 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Image: NisoImageMetadata: FormatName: image/png ImageWidth: 790 ImageHeight: 468 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Image: NisoImageMetadata: FormatName: image/png ImageWidth: 952 ImageHeight: 391 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Image: NisoImageMetadata: FormatName: image/png ImageWidth: 948 ImageHeight: 393 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Image: NisoImageMetadata: FormatName: image/png ImageWidth: 946 ImageHeight: 390 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Image: NisoImageMetadata: FormatName: image/png ImageWidth: 947 ImageHeight: 402 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Image: NisoImageMetadata: FormatName: image/png ImageWidth: 945 ImageHeight: 393 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Image: NisoImageMetadata: FormatName: image/png ImageWidth: 945 ImageHeight: 399 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Filter: FlateDecode Fonts: Type1: Font: BaseFont: ASLOPJ+URWPalladioL-Ital FontSubset: true FirstChar: 2 LastChar: 121 FontDescriptor: FontName: ASLOPJ+URWPalladioL-Ital Flags: Symbolic FontBBox: -170, -305, 1010, 941 FontFile: true EncodingDictionary: Differences: true Font: BaseFont: NRUJNB+CMSY10 FontSubset: true FirstChar: 0 LastChar: 106 FontDescriptor: FontName: NRUJNB+CMSY10 Flags: Symbolic FontBBox: -29, -960, 1116, 775 FontFile: true Font: BaseFont: KDZWRK+CMBSY10 FontSubset: true FirstChar: 3 LastChar: 3 FontDescriptor: FontName: KDZWRK+CMBSY10 Flags: Symbolic FontBBox: -26, -940, 1332, 825 FontFile: true Font: BaseFont: ZKMAAC+URWPalladioL-Bold FontSubset: true FirstChar: 2 LastChar: 122 FontDescriptor: FontName: ZKMAAC+URWPalladioL-Bold Flags: Symbolic FontBBox: -152, -301, 1000, 935 FontFile: true EncodingDictionary: Differences: true Font: BaseFont: PSANVF+CMMI10 FontSubset: true FirstChar: 46 LastChar: 62 FontDescriptor: FontName: PSANVF+CMMI10 Flags: Symbolic FontBBox: -32, -250, 1048, 750 FontFile: true Font: BaseFont: OIJHFF+CMEX10 FontSubset: true FirstChar: 40 LastChar: 62 FontDescriptor: FontName: OIJHFF+CMEX10 Flags: Symbolic FontBBox: -24, -2960, 1454, 772 FontFile: true Font: BaseFont: QQXUPP+PazoMath FontSubset: true FirstChar: 229 LastChar: 229 FontDescriptor: FontName: QQXUPP+PazoMath Flags: Symbolic FontBBox: -40, -283, 878, 946 FontFile: true Font: BaseFont: LPSODL+URWPalladioL-Roma FontSubset: true FirstChar: 2 LastChar: 241 FontDescriptor: FontName: LPSODL+URWPalladioL-Roma Flags: Symbolic FontBBox: -166, -283, 1021, 943 FontFile: true EncodingDictionary: Differences: true Font: BaseFont: SOSTRQ+CMR10 FontSubset: true FirstChar: 40 LastChar: 93 FontDescriptor: FontName: SOSTRQ+CMR10 Flags: Symbolic FontBBox: -40, -250, 1009, 750 FontFile: true Pages: Page: Sequence: 1 Annotations: Annotation: Subtype: Link Rect: 75, 335, 152, 344 Annotation: Subtype: Link Rect: 34, 323, 117, 332 Annotation: Subtype: Link Rect: 34, 164, 96, 186 Annotation: Subtype: Link Rect: 126, 90, 154, 99 Annotation: Subtype: Link Rect: 34, 78, 147, 87 Annotation: Subtype: Link Rect: 34, 757, 167, 793 Annotation: Subtype: Link Rect: 515, 757, 560, 793 Annotation: Subtype: Link Rect: 101, 661, 112, 675 Annotation: Subtype: Link Rect: 185, 661, 196, 675 Annotation: Subtype: Link Rect: 296, 661, 307, 675 Annotation: Subtype: Link Rect: 225, 649, 236, 662 Annotation: Subtype: Link Rect: 277, 256, 284, 265 ActionDest: 484 Annotation: Subtype: Link Rect: 296, 231, 303, 240 ActionDest: 484 Annotation: Subtype: Link Rect: 452, 193, 459, 202 ActionDest: 484 Annotation: Subtype: Link Rect: 394, 181, 401, 189 ActionDest: 484 Annotation: Subtype: Link Rect: 401, 155, 408, 164 ActionDest: 484 Annotation: Subtype: Link Rect: 196, 118, 203, 127 ActionDest: 484 Annotation: Subtype: Link Rect: 217, 77, 224, 89 ActionDest: 70 Annotation: Subtype: Link Rect: 182, 68, 189, 76 ActionDest: 484 Annotation: Subtype: Link Rect: 190, 67, 197, 76 ActionDest: 484 Annotation: Subtype: Link Rect: 113, 17, 268, 28 Annotation: Subtype: Link Rect: 402, 17, 560, 28 Annotation: Subtype: Link Rect: 34, 420, 86, 439 Page: Sequence: 2 Annotations: Annotation: Subtype: Link Rect: 337, 685, 344, 694 ActionDest: 484 Annotation: Subtype: Link Rect: 278, 585, 290, 594 ActionDest: 484 Annotation: Subtype: Link Rect: 294, 115, 306, 124 ActionDest: 487 Page: Sequence: 3 Annotations: Annotation: Subtype: Link Rect: 543, 723, 555, 732 ActionDest: 487 Annotation: Subtype: Link Rect: 227, 572, 239, 581 ActionDest: 487 Annotation: Subtype: Link Rect: 438, 433, 445, 444 ActionDest: 168 Annotation: Subtype: Link Rect: 268, 419, 275, 431 ActionDest: 214 Annotation: Subtype: Link Rect: 551, 419, 558, 431 ActionDest: 219 Annotation: Subtype: Link Rect: 548, 394, 555, 406 ActionDest: 463 Annotation: Subtype: Link Rect: 319, 332, 331, 342 ActionDest: 487 Page: Sequence: 4 Annotations: Annotation: Subtype: Link Rect: 545, 581, 557, 590 ActionDest: 487 Annotation: Subtype: Link Rect: 361, 154, 373, 163 ActionDest: 487 Annotation: Subtype: Link Rect: 376, 104, 388, 113 ActionDest: 487 Page: Sequence: 5 Annotations: Annotation: Subtype: Link Rect: 210, 507, 217, 519 ActionDest: 197 Annotation: Subtype: Link Rect: 282, 495, 289, 506 ActionDest: 194 Annotation: Subtype: Link Rect: 320, 313, 327, 325 ActionDest: 194 Page: Sequence: 6 Annotations: Annotation: Subtype: Link Rect: 453, 341, 460, 353 ActionDest: 203 Annotation: Subtype: Link Rect: 192, 329, 199, 341 ActionDest: 203 Page: Sequence: 7 Annotations: Annotation: Subtype: Link Rect: 419, 458, 426, 472 ActionDest: 203 Annotation: Subtype: Link Rect: 218, 241, 230, 250 ActionDest: 487 Annotation: Subtype: Link Rect: 230, 241, 242, 250 ActionDest: 487 Annotation: Subtype: Link Rect: 434, 100, 441, 112 ActionDest: 203 Page: Sequence: 8 Annotations: Annotation: Subtype: Link Rect: 411, 710, 423, 719 ActionDest: 487 Annotation: Subtype: Link Rect: 552, 683, 559, 695 ActionDest: 203 Annotation: Subtype: Link Rect: 441, 660, 453, 669 ActionDest: 487 Annotation: Subtype: Link Rect: 204, 622, 216, 631 ActionDest: 487 Annotation: Subtype: Link Rect: 512, 572, 524, 581 ActionDest: 487 Annotation: Subtype: Link Rect: 245, 560, 256, 569 ActionDest: 487 Annotation: Subtype: Link Rect: 259, 560, 271, 569 ActionDest: 487 Page: Sequence: 9 Annotations: Annotation: Subtype: Link Rect: 412, 620, 419, 632 ActionDest: 211 Annotation: Subtype: Link Rect: 463, 271, 470, 283 ActionDest: 214 Page: Sequence: 10 Annotations: Annotation: Subtype: Link Rect: 356, 521, 363, 535 ActionDest: 211 Annotation: Subtype: Link Rect: 254, 471, 261, 483 ActionDest: 211 Annotation: Subtype: Link Rect: 199, 458, 214, 470 ActionDest: 383 Annotation: Subtype: Link Rect: 469, 408, 560, 420 Annotation: Subtype: Link Rect: 165, 395, 195, 407 Page: Sequence: 11 Annotations: Annotation: Subtype: Link Rect: 400, 657, 407, 669 ActionDest: 219 Annotation: Subtype: Link Rect: 544, 660, 556, 669 ActionDest: 487 Annotation: Subtype: Link Rect: 254, 544, 505, 556 Annotation: Subtype: Link Rect: 332, 233, 339, 245 ActionDest: 272 Annotation: Subtype: Link Rect: 197, 207, 204, 219 ActionDest: 285 Annotation: Subtype: Link Rect: 227, 132, 234, 144 ActionDest: 285 Annotation: Subtype: Link Rect: 292, 60, 304, 69 ActionDest: 487 Page: Sequence: 12 Annotations: Annotation: Subtype: Link Rect: 511, 720, 518, 732 ActionDest: 285 Page: Sequence: 13 Page: Sequence: 14 Annotations: Annotation: Subtype: Link Rect: 494, 708, 501, 720 ActionDest: 312 Annotation: Subtype: Link Rect: 504, 708, 516, 720 ActionDest: 312 Page: Sequence: 15 Annotations: Annotation: Subtype: Link Rect: 374, 695, 385, 707 ActionDest: 343 Annotation: Subtype: Link Rect: 389, 645, 395, 657 ActionDest: 211 Annotation: Subtype: Link Rect: 496, 632, 508, 644 ActionDest: 312 Annotation: Subtype: Link Rect: 426, 620, 437, 632 ActionDest: 312 Annotation: Subtype: Link Rect: 532, 252, 544, 264 ActionDest: 352 Annotation: Subtype: Link Rect: 547, 252, 559, 264 ActionDest: 352 Annotation: Subtype: Link Rect: 473, 240, 485, 252 ActionDest: 383 Page: Sequence: 16 Page: Sequence: 17 Annotations: Annotation: Subtype: Link Rect: 389, 396, 401, 408 ActionDest: 383 Page: Sequence: 18 Annotations: Annotation: Subtype: Link Rect: 357, 604, 369, 616 ActionDest: 394 Annotation: Subtype: Link Rect: 388, 604, 400, 616 ActionDest: 399 Annotation: Subtype: Link Rect: 403, 541, 415, 553 ActionDest: 399 Annotation: Subtype: Link Rect: 295, 529, 316, 541 ActionDest: 285 Annotation: Subtype: Link Rect: 390, 167, 402, 179 ActionDest: 399 Annotation: Subtype: Link Rect: 421, 167, 433, 179 ActionDest: 399 Annotation: Subtype: Link Rect: 516, 167, 527, 179 ActionDest: 408 Annotation: Subtype: Link Rect: 546, 167, 558, 179 ActionDest: 408 Annotation: Subtype: Link Rect: 432, 82, 444, 91 ActionDest: 487 Annotation: Subtype: Link Rect: 444, 82, 456, 91 ActionDest: 487 Page: Sequence: 19 Page: Sequence: 20 Annotations: Annotation: Subtype: Link Rect: 412, 285, 423, 294 ActionDest: 487 Annotation: Subtype: Link Rect: 424, 286, 436, 294 ActionDest: 487 Annotation: Subtype: Link Rect: 446, 223, 458, 232 ActionDest: 487 Annotation: Subtype: Link Rect: 212, 94, 234, 106 ActionDest: 383 Page: Sequence: 21 Annotations: Annotation: Subtype: Link Rect: 451, 695, 463, 707 ActionDest: 415 Annotation: Subtype: Link Rect: 265, 532, 277, 544 ActionDest: 427 Annotation: Subtype: Link Rect: 297, 532, 309, 544 ActionDest: 427 Annotation: Subtype: Link Rect: 358, 482, 371, 494 ActionDest: 445 Annotation: Subtype: Link Rect: 246, 165, 258, 177 ActionDest: 415 Annotation: Subtype: Link Rect: 458, 152, 470, 164 ActionDest: 445 Annotation: Subtype: Link Rect: 339, 114, 351, 126 ActionDest: 427 Page: Sequence: 22 Annotations: Annotation: Subtype: Link Rect: 292, 172, 304, 184 ActionDest: 463 Annotation: Subtype: Link Rect: 325, 172, 337, 184 ActionDest: 463 Page: Sequence: 23 Annotations: Annotation: Subtype: Link Rect: 444, 720, 456, 732 ActionDest: 415 Page: Sequence: 24 Page: Sequence: 25 Annotations: Annotation: Subtype: Link Rect: 362, 221, 373, 230 ActionDest: 487 Annotation: Subtype: Link Rect: 349, 183, 361, 192 ActionDest: 487 Page: Sequence: 26 Annotations: Annotation: Subtype: Link Rect: 278, 592, 291, 603 ActionDest: 219 Annotation: Subtype: Link Rect: 419, 592, 560, 603 Annotation: Subtype: Link Rect: 165, 580, 560, 591 Annotation: Subtype: Link Rect: 165, 569, 171, 580 Annotation: Subtype: Link Rect: 536, 569, 560, 580 Annotation: Subtype: Link Rect: 165, 557, 366, 568 Annotation: Subtype: Link Rect: 444, 270, 482, 281 Annotation: Subtype: Link Rect: 486, 178, 560, 189 Annotation: Subtype: Link Rect: 56, 167, 508, 178 Annotation: Subtype: Link Rect: 86, 132, 560, 143 Annotation: Subtype: Link Rect: 372, 98, 410, 109 Annotation: Subtype: Link Rect: 258, 75, 295, 86 Page: Sequence: 27 Annotations: Annotation: Subtype: Link Rect: 444, 699, 482, 710 Annotation: Subtype: Link Rect: 59, 676, 96, 687 Annotation: Subtype: Link Rect: 86, 652, 406, 664 Annotation: Subtype: Link Rect: 182, 630, 220, 640 Annotation: Subtype: Link Rect: 91, 607, 128, 617 Annotation: Subtype: Link Rect: 134, 607, 170, 617 Annotation: Subtype: Link Rect: 504, 583, 542, 594 Annotation: Subtype: Link Rect: 175, 537, 213, 548 Annotation: Subtype: Link Rect: 113, 412, 151, 422 Annotation: Subtype: Link Rect: 131, 366, 168, 376 Annotation: Subtype: Link Rect: 519, 319, 557, 330 Checksum: c4b886c4 Type: CRC32 Checksum: f0c155f2e47dfeee55309f86733b7cb1 Type: MD5 Checksum: 8befe3bd77fd6752697d77054bc8a88e272926ac Type: SHA-1