We analyze the technical efficiency of German and Swiss urban public transport companies by means of SFA. In transport networks we might face different network structures or complexities, not observed, but influencing the production process. The unobserved factors are typically modeled as...

In the present study we carry out an analysis of speed fluctuations as a determinant of the quality of public transport. We do this by focusing on a special cause of unreliability: variations in weather conditions. We use hourly measured weather conditions. The panel data results imply that snow...

The urban transportation sector's environmental, economic, and social footprint is immense and expanding. Many of the world's most vexing and pressing problems - fossil fuel dependency, global warming, poverty, and social exclusion - are inextricably tied to the transportation sector. Much of...