Vehicles lower than 2.7m IIRC can use TWY R @ DXB with no restrictions with tfc on final to RWY30R. Anything bigger must be clear of OFZ by the time arriving acft reaches 2nm final.
Arrivals to RWY12R doesn't impose restrictions on the use of TWY L4, it does look a bit tight though and I try to avoid putting aircraft there simultaneously.
Deps off RWY30L is a different case as they might use the full RWY and min climb gradient is less than 3 degrees. No aircraft allowed on L3/L4.