A Computational Framework for Revealing Competitive Travel Times with Low-Carbon Modes Based on Smartphone Data Collection

Figure 7

Desire line distribution of the observed trips, based on trip OD pairs. The lines are weighted by the repetition of unique trips. The map shows the Helsinki metropolitan region including cities of Helsinki, Espoo, and Vantaa (map tiles by Stamen Design, under CC BY 3.0; data by © OpenStreetMap, under CC BY SA).