0Long exposure: Meaning exposing your camera's sensor to light for more than a second (slow-shutter speed), might go up to hours.
The main intention of this type of photography is:
1. To get good exposure in night time(usually) with low ISO
2. And sharply capture the stationary/still subjects while blurring the moving elements.
The above photo mainly consists of stationary subject, so it appears still in the picture. You can also see some traffic in the background which is moving, meaning blurred.
