Spatial Variation of Taxi Demand Using GPS Trajectories and POI Data

Table 1

Candidate list of explanatory variables.

	Variables	Description
Socio-economic	Residential density	The number of people per square kilometer in each grid cell
	Housing price	The average housing price per square kilometer in each grid cell
Traffic	Road density	The length of road segments per square kilometer in each grid cell
	Bus station density	The number of bus stops per square kilometer in each grid cell
	Parking lot density	The number of parking lots per square kilometer in each grid cell
Land use	Residential area	The ratio of the total floor area used for residential purposes in each grid cell
	Commercial area	The ratio of the total floor area used for commercial purposes in each grid cell
	Public service area	The ratio of the total floor area used for public service purposes in each grid cell
	Other land use	The ratio of the total floor area used for other purpose in each grid cell
	Land use mix	The degree of mixture of land use in each grid cell