Metro Traffic Flow Prediction via Knowledge Graph and Spatiotemporal Graph Neural Network

Table 1

Entities and attributes of metro knowledge graph.

Entity	Attribute	Number
Station	Station name, station id, latitude and longitude, transfer information	325
Line	Line name, line id	13
Region	Region name, region id	12
POI	Poi id, poi name, poi type, latitude and longitude, poi region	422,000
Event	Event type, event location, event time	6,199
Weather	Time, temperature, humidity, pollutants, weather conditions, wind conditions	52,992