Fig. 12From: Scoring and classifying regions via multimodal transportation networksPublic transportation synergy scores (sizes) and groups via hierarchical clustering (colors). Size represents the mean of the four synergy measures, so the small purple dots indicate a score of 0 (no trains, sometimes no buses either). Although the regions of similar synergy levels are scattered geographically, regions of low synergy may indicate areas where increased bus service could substantially increase reachabilityBack to article page