[JAMF]

It might be an idea to create (if possible) dark brown teardrop shaped textures* at the beginning and end of the runway, since these are earth and grass airstrips. If an airfield has many TO and landings, these would appear IMHO. Especially in wet times. It would make a clearly defined beginning and end of the runway AND the rest of the runway doesn't need to contrast so strongly as in the first image FabianFred posted above, but more like the second image. Just MHO.


*Dunno if a single teardrop shape is desired, but it's not likely that aircraft would all touch down on the center line, thereby creating a pair of teardrop shapes.