In some examples, a collision awareness system includes a receiver configured to receive a first clearance for a first vehicle, receive a first image of the first vehicle, and receive a second clearance for a second vehicle. The collision awareness system also includes processing circuitry configured to determine that the first vehicle is positioned incorrectly based on the first clearance and the first image. The processing circuitry is also configured to generate an alert based on the second clearance and in response to determining that the first vehicle is positioned incorrectly.