Table 4.

List of transportation applications in mobile phone data.

Reference	Application	Description
[75]	Traffic congestion detection	The study aims to classify traffic conditions into high, medium, and low traffic levels based on handover records that show the number of handover events in a cellular tower
[76]	Origin–destination flow estimation	The study aims to study traffic flow in Dhaka city by constructing origin–destination (OD) matrices based on phone users’ trajectories
[77,78,79]	Urban planning and management	These studies aim to investigate and understand the dynamics of human mobility and human travel patterns in urban areas, which paves the way for improving traffic planning, public transport design, and transportation infrastructure design
[19,80,81]	Transport mode detection	These studies analyze the travel behaviors of passengers in order to identify the modes of transportation that passengers take, such as metro, train, car, and bus