In my opinion, I think you'll save more time just by taking the
bus from Jurong to NUS... there's a bus stop at the track, right
next to School of Computing which is opposite Faculty of Science...
You go park at Kent Vale then wait for the bus to bring you to
Science, quite long... esp if it's peak hour when everyone is
rushing to go for lessons... the bus is kinda small too... smaller
than SBS bus...
I've had frens who tried to do what you're doing, but gave up after
a while... really not worth it... You want to drive for the
convenience, but you still end up taking the feeder bus... plus,
the feeder bus waiting times lengthen to half an hour after
7.30pm... so if you're stuck in science and you still have your car
parked in Kent Vale, you'd better know the timing of the buses... I
suggest you try taking the bus during school time first... if you
really think the driving is better, then park at Kent Vale... try
boths routes and see which one works for you...