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Table 7 Inequality indicators of accessibility levels given current and expected future road networks and the Compact and BAU scenarios of population change

From: Accessibility and territorial cohesion in a case of transport infrastructure improvements with changing population distributions

Data source Observed Modelled
Network 1970 2012 2006 2030
Population 1971 (r) 1971 2011 2006 (I) 2006 (II) Compact scenario (III) BAU scenario (IV)
Coefficient of variation    % dif   % dif    % dif   % dif   % dif
Location 0.074 0.046 −37.6 0.041 −44.0 0.191 0.182 −4.5 0.184 −3.5 0.179 −6.2
Network efficiency 0.143 0.051 −64.2 0.052 −63.4 0.041 0.033 −18.7 0.033 −20.7 0.033 −20.7
Potential 0.432 0.332 −23.2 0.336 −22.3 0.285 0.266 −6.7 0.269 −5.8 0.273 −4.3
Daily 0.596 0.423 −29.0 0.426 −28.5 0.430 0.391 −9.1 0.393 −8.7 0.394 −8.4
Gini index             
Location 0.042 0.026 −38.2 0.023 −44.5 0.099 0.097 −2.4 0.097 −2.1 0.094 −4.8
Network efficiency 0.066 0.025 −62.2 0.025 −61.7 0.023 0.019 −19.3 0.018 −21.4 0.018 −21.4
Potential 0.235 0.181 −22.9 0.183 −22.1 0.158 0.147 −7.0 0.148 −6.7 0.149 −5.5
Daily 0.325 0.237 −27.0 0.236 −27.4 0.240 0.219 −9.0 0.219 −8.9 0.220 −8.6
Theil (0)             
Location 0.003 0.001 −62.0 0.001 −69.3 0.017 0.016 −7.4 0.016 −6.1 0.015 −11.3
Network efficiency 0.009 0.001 −86.2 0.001 −85.6 0.001 0.001 −33.9 0.001 −37.1 0.001 −37.2
Potential 0.091 0.055 −39.9 0.055 −39.1 0.040 0.035 −13.1 0.035 −11.8 0.036 −9.5
Daily 0.168 0.089 −46.8 0.089 −47.1 0.092 0.076 −17.0 0.076 −16.6 0.077 −16.2
Atkinson (0.5)             
Location 0.001 0.001 −62.4 0.000 −69.7 0.008 0.008 −6.8 0.008 −5.9 0.007 −11.0
Network efficiency 0.004 0.001 −85.7 0.001 −85.2 0.000 0.000 −33.9 0.000 −37.1 0.000 −37.1
Potential 0.046 0.028 −40.1 0.028 −39.5 0.020 0.017 −13.2 0.017 −12.1 0.018 −9.9
Daily 0.084 0.046 −45.8 0.045 −46.8 0.046 0.039 −17.0 0.039 −16.7 0.039 −16.4
  1. Note: all relative differences in the observed data are computed with case r as reference; all relative differences in the modelled data are computed with case I as reference. Case numbers (I to IV) are given between parentheses