Good question ,
I have one more suggestion leaving the above ..
whether it is correct or wrong suggest me.
I hope everybody met be absorved whenever there is holiday you will find less traffice ...........rite
I suggest now we are advanced and we are into 2010 we have lot of facility like internet,webcam and home printer why cann't possible work of office can be done in home. Because all 80% will be on computers .
Almost all employees will be on there desk for minimun 7hours in there office, If same thing can be done in office why cann't in home.companies can make employees to come office once in an week and have a meeting.
This will really avoid traffic.....
But out of your points even i vote of pool vehicle bus and car etc.
Come up with your sugestion