The photo on the left shows the "asphalt" surface of the platform removed from the concrete platform structure. Notice the screw showing near the right end of the platform. These attach the platform to the module and is hidden by the surface piece.
Kato does not offer a tapered awning to match the end platforms so I had to make my own by modifying a standard awning. After cutting the angle with a razor saw, I cut the edge off a scrap piece of awning and glued it to the cut edge of the angle part of the awning to give it a finished look.
Some white styrene was cut to match the cut end of the awning.
Here's a look from the other side. On this side the stairway between the station and the platform goes through the awning. I still need to complete the tapered awning on this end of the platform.