[Gamer_Z]

loop the whole block[x][playerid], where x is the itterator.

pawn Код:

for(new x = 0; x< MAX_ROADBLOCKS_OR_SOMETHING; x++)DestroyObject(block[x][playerid]);

also if you want to modify the car spawn time, use CreateVehicle instead of AddStaticVehicle. [look on the wiki].