Rather than pouring thick gravel onto areas where grasses will be planted later, use 4x8 plastic drive on mats to create temporary roadways. Drive over truck mats protect the ground from damage, even in mud. What are plastic mats to drive on? These nsist of extremely tough materials that provide yard mats to drive on, creating makeHDPEft driveways. Each temporary roadway mat can be moved into a new position any time, ensuring the worksite always has a sturdy driveway to use.