说明

At the top of the 580 flyover, in the northbound direction, the concrete pavement of the flyover sits higher by at least a couple of inches than the asphalt road leading up to the seam. This is a danger to bicyclists - I have seen them move as far to the right as possible where the height difference is not as great - but cars and buses (which I ride on) get a heckuva jolt passing over the seam unless they slow down to a crawl.