How do the indicators used by a city of metropolitan region differ from the global indicators8/23/2023 ![]() In the rare case that a data point for a particular city was not available, the average score of the indicator was used in its place.Given that a higher overall Index score indicates a better performance, for indicators where a lower figure is deemed positive (such as traffic fatalities), the inverse of the data point or its negative equivalent were used.All city scores in between the minimum and the maximum are assigned a proportional score specifically using the formula (data point – series min) / (series max – series min). The lowest scoring city (after accounting for outliers) is assigned a score of 0 percent and the highest scoring city is assigned a score of 100 percent. To calculate an Index score for each city, a minimum-maximum approach is used to assign a city a score between 0 percent and 100 percent.If a data point for a specific city does fall outside the mean +/- 2 s.d., the city is assigned a value equal to either the mean +2 s.d. To account for outliers, each data point is checked to determine if it falls outside of 2 standard deviations (s.d.) from the mean. All raw scores are compared and the standard deviation for the statistical dataset is computed.For example, in the modal split indicator, the percentage of all trips taken by public transport is given for each of the 100 cities on the Index. For each indicator, the same set of steps is followed which allows us to assign a value between 0 percent and 100 percent to each city:įirstly, in each indicator, raw scores are found for each city. The overall Index score for each city is based on the city’s performance in 23 individual indicators listed in the Appendix. In more detail, The Sustainable Cities Mobility Index is constructed with a three-stage averaging process to create a composite score and corresponding ranking for each of the 100 cities. Then a city’s ranking across all three sub-indices is averaged to give the city its overall ranking. The indicators were weighted and then each city is given a ranking in the sub-index. The city that is assigned an 100% in the public finance indicator does not commit 100% of its city budget to transport spending, rather it commits a larger share of its city budget to transport than the other 99 cities. All cities in between are assigned a proportional score. ![]() the city with the highest number of traffic fatalities per 100,000 inhabitants or the highest delays) receives a 0% and the highest receives 100%. In short, all cities were assigned a percentage relative to the other 99 cities, and ranked on that percentage.
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