Idea of Trolley Icon
There is a flat horizontal line at the bottom. Atop is a small circle near the center but a bit closer to the left end of the line. Above the circle is a long L shaped line titled where the corner of the L is to the right of the circle. Instead of ending directly vertical there is an extra smaller line that hooks off the top towards the left.
This page contains the Trolley vector icon, as well as variations of this icon in different visual styles, and related icons. All icons are in the flat vector style, however, differ by the line thickness, fill, and corner radius.