Technical and Scale Efficiency in Spanish Urban Transport: Estimating with Data Envelopment Analysis | Zendy

Isabel Sánchez | Zendy

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Technical and Scale Efficiency in Spanish Urban Transport: Estimating with Data Envelopment Analysis

Author(s) -

Isabel Sánchez

Publication year - 2009

Publication title -

advances in operations research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.379

H-Index - 14

eISSN - 1687-9155

pISSN - 1687-9147

DOI - 10.1155/2009/721279

Subject(s) - data envelopment analysis , tobit model , econometrics , principal component analysis , scale (ratio) , regression analysis , statistics , level of service , service (business) , public transport , quality (philosophy) , mathematics , economics , environmental economics , transport engineering , engineering , geography , philosophy , cartography , economy , epistemology

The paper undertakes a comparative efficiency analysis of public bus transport in Spain using Data Envelopment Analysis. A procedure for efficiency evaluation was established with a view to estimating its technical and scale efficiency. Principal components analysis allowed us to reduce a large number of potential measures of supply- and demand-side and quality outputs in three statistical factors assumed in the analysis of the service. A statistical analysis (Tobit regression) shows that efficiency levels are negative in relation to the population density and peak-to-base ratio. Nevertheless, efficiency levels are not related to the form of ownership (public versus private). The results obtained for Spanish public transport show that the average pure technical and scale efficiencies are situated at 94.91 and 52.02%, respectively. The excess of resources is around 6%, and the increase in accessibility of the service, one of the principal components summarizing the large number of output measures, is extremely important as a quality parameter in its performance

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