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Table 1 Summary of the six infrastructure sectors which constitute the suite of networks

From: The structure and behaviour of hierarchical infrastructure networks

Sector Number of network instances Mean N Mean E Min N Min E Max N Max E Source
Air 6 417 2202 48 135 889 573,7 OpenFlights
Communication 1 NA NA 38 58 38 58 JANET
Energy 5 41,228 41,950 1486 1739 170,669 173,039 National grid/ordnance Survey/ITRC
Rail- regional 14 187 203 45 46 467 519 Ordnance survey/open street map
Rail - national 3 2799 2967 201 203 7995 8490 Ordnance survey/open street map
Rivers 4 930 946 302 301 1905 1966 Ordnance survey
Road - regional 7 4072 5827 42 51 15,249 21,817 Ordnance survey/open street map
Road - national 2 14,258 28,152 4444 6011 24,071 50,292 Ordnance survey/open street map