Research Article

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

Figure 17

Potential emission savings and active travel increase if travelers shift from car to low-carbon time-relevant alternatives. Each point represents one door-to-door trip. (a) All car trips with any low-carbon alternative. (b) Car trips grouped based on the type of their alternative mode.
(a)
(b)