Different texture colors/material on the same runway...?

Hi - I am just starting out with the SDK and learning to rebuild some airports. I was curious if you can have a single runway with different shades of asphalt? You see this often at airports where parts of the runway were resurfaced. I think you can do this with aprons but I am not seeing a way to do it for a runway within the SDK . Just wanted to see if there might be a trick for this. Thanks!