Method and system for extracting od locations of vehicle on expressway

A method for extracting OD locations of a vehicle on an expressway, comprising steps of:

• S1:
• acquiring mobile phone signaling data and license plate recognition data in a same area;
• S2:
• respectively preprocessing the mobile phone signaling data and the license plate recognition data, to obtain mobile phone signaling data trajectories and license plate recognition data trajectories after quality control;
• S3:
• segmenting the mobile phone signaling data trajectories to obtain mobile phone signaling data with a travel order;
• S4:
• matching the mobile phone signaling data trajectories against the license plate recognition data trajectories by using three-dimensional trajectory data, to obtain a vehicle and a mobile phone signaling user corresponding to the vehicle;
• S5:
• extracting a passing time of the vehicle passing through a road section in the license plate recognition data, calculating time differences between the passing time and travel trajectory points of the mobile phone signaling user corresponding to the vehicle, and taking start and end locations of a travel of mobile phone signaling data in which a minimum time difference is located as OD of a current travel of the vehicle.