In comparison, the costs of petrol and parking have risen to such levels that some drivers are forced to seek other modes of transportation. As a way to discipline drivers' behavior, the city has introduced a tough demerit point system for traffic violations, mainly through surveillance cameras on roads.

It's no secret that many drivers "borrow" points from friends or family members to clear offenses before they pass the compulsory annual vehicle inspection. This has also spawned a prosperous business of engaging agents to buy and sell points.

But wait, isn't it true that a driver stands to lose more if he or she lets the car sit idle? Here is the fallacy of owning a car everywhere: We tend to ignore the costs of purchase, maintenance, insurance and depreciation. Only daily expenses and experience matter. So drivers like me may find it more economical to take the bus or subway. This has also spelled out a better future for the public transport system, despite a booming car population in China.

While the city's huge fleet of buses becomes bigger and newer, the ground transit still carries the stigma of being inefficient and uncomfortable. Status-conscious residents prefer to shun buses that are generally perceived to be for poor, older people or migrant workers.

Statistics show that last year, while the number of passengers taking the subway soared by almost four times from 2007, bus ridership rose only 14.4 percent. One key aim for a proposed steep hike in subway fares is to direct more passengers to the bus system, which will only increase its fare modestly.

But experts predict that many converts will return to the subway if the bus services don't improve soon and passengers become more courteous.

The task for the bus system to woo more riders to give up driving has become ever more urgent as it's part of the city's strategy to battle the worsening air pollution.

I'll continue to ride the bus to work because I've gotten used to the bumpy ride. Even with the imminent price hike, taking the bus is still much, much cheaper than driving a car.

But I doubt many others will take the same plunge, probably because they feel they're just too good for the bus.