The gate has several lines coming from different areas but it gives a sense of direction because the line seem to meet at the middle of the gate.
Not only are there obvious lines on the ground, but the photo also emphasises movement and lines through the direct the riders are leaning.
I thought the bridge was a great example of line because there is more than one type of line as well as creates leading lines for the viewer.
The spokes of the wheel, the frame of the bike and the grooves of the tire are all made up of lines.
What I love most about this photo is how the sunset helps accent the telephone wires. Our eyes are immediately attracted to the lighter part of the sky because most of the photo is dark. This helps gravitate your eyes to the clear lines of the wire.