New Horizons in Regional Science series
Edited by Aura Reggiani and Peter Nijkamp
Chapter 2: Network and Nodal Indices. Measures of Complexity and Redundancy: A Review
Nigel Waters PROLOGUE In preparing this chapter, I was constantly amazed about how little some network researchers knew about what was going on in other disciplines where network analysis was thriving, and even in their own discipline where the topic had thrived at different times achieving various levels of popularity. Perhaps most disconcerting of all was that I realized that these observations also applied to my own knowledge of the field. Writing this chapter has helped me address some of my own deficiencies. Hopefully, it will be of use to others too. 2.1 INTRODUCTION In 1973 I completed an MA thesis: ‘The Growth of the Southern Ontario Railway System – A Network Analysis’ (Waters 1973). This thesis drew heavily on a substantial body of literature within geography and spatial science that was devoted to network analysis. One impetus for this research had been the work of Karel Kansky (1963) whose own doctoral dissertation had been concerned with measures of nodal importance and network complexity within a transportation network. These were believed to be associated with urban growth. If this were the case, then socio-economic variables might be used to simulate the growth of such transportation networks as the road and rail system of a country. Kansky’s work spawned a decade of increasingly sophisticated research into transportation and related networks. Some of this was summarized in Haggett and Chorley’s (1969) book Network Analysis in Geography, which 13 14 Analytical Advances in Modelling the Space-Economy attempted to forge a link between physical and...
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