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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