Tracking vehicles is disclosed. Initially, two or more first images from a first camera having a first field of view are received. Next, a first static characteristic and a first dynamic characteristic of a first vehicle are determined based on the two or more first images. Next, two or more second images from a second camera having a second field of view are received. A second static characteristic and a second dynamic characteristic of the first vehicle are determined based on the two or more second images. The first characteristics and the second characteristics are compared to determine that the second characteristics are approximately equal to the first characteristics of the first vehicle. Finally, it is indicated that the first vehicle is present in the second field of view of the second camera.