Micro Machines station buildings

The small one came with the 'Power train city' layout, while the larger 'Central station' is a fairly common easy to find model. Thing is though, what is the purpose of the paper track sticker which goes through the canopy on the larger model? the slot isn't big enough to insert the plastic track sections, it's totally bizarre, I know it's only a toy, but the rest of it is so well thought out, that this part doesn't make sense at all.

Done