Tell you the truth I always travel 90-100km/h in CTE tunnel when
I'm driving alone and if traffic is favourable to me. 
But really lah, travelling at a slow speed doesn't mean you won't
get into a bad accident as well. All drivers should generally know
that at slow speeds one tends to feel sleepy and lethargic. At
higher speeds, a driver is usually more alert and can react to
change faster.
Of course, I'm not saying that one should try to break the sound
barrier or what when driving. A range of around 80-90km/h is about
fine in an expressway. Speed limit at 70 is just too slow on an
expressway man. Face it, there are a lot of people who brake really
hard when they see a speed camera and this would cause even more
accidents than if traffic was allowed to flow smoothly at a higher
speed limit.
Yes i am not complaining that the CTE speed limits are 80 in tunnel
and 90 outside. Why should I? 90 is a reasonable speed limit to me
and as for 80, I'm willing to compromise lah. But 70 is just too
slow lah. Try driving 70 over a long stretch of road, some of us,
eg me, will go nuts man. Here's a reason why SAF drivers should be
lauded sometimes as their minibus and landrovers speed limit around
50 only.
