chances are, they never look at the bloody green light...
during the peak time when everyone moves in or out, the barrier
is disabled and the light automatically turns off...
so most never look at the light.. until becomes a habit, the
bloody drop-arm move up, they drive.. i've seen many of them move
off before the drop-arm is completely up..
i suspect this is what happens whenever the thing destroys a
car
so...
it would be the driver's own fault if he didn't take look at the
green light.
that's the problem when there is not SOP
if u can switch the thing off during peak period
then switch if off all the time lah!