It is highly possible that dirt tracks in Western catchment area
are 3-ton and 5-ton vehicles, in addition to tanks.
It is still possible to enter through Pasir Laba Road, after the
gate, the day where all cars, taxis, and everything can still go
through. But it is not possible for all to drive in an dirt track,
as there is no other way, only limit to their following vehicles.
Don't you remember that car may kena topple into the Tengeh
Reservoir ? (if you drive an off-road vehicle in a Casino
Royale).