Does public transport mean you don't need a car?

Greg Woodhams, NSW vice president of the Planning Institute of Australia, believes apartments in inner and middle ring suburbs don't need to have all the parking spaces usually mandated by councils, if they have good public transport available. But good public transport just means people will leave their cars at home and go to work by bus or train. It doesn't mean they won't want to have cars. People use cars to go out at night, to go shopping, and to go away for the weekends. Good public transport to work is not sufficient.
Consequently, if Greg has his way, the local streets will be jammed full of resident's cars during the day as well as at night.
Residents of Beecroft and Cheltenham are already well aware of this problem. Every day floods of cars arrive to park in Hannah Street and other streets within walking distance of the station, anywhere where parking is not restricted. Yes, Beecroft has excellent public transport, buses as well as the train, but still people need cars. The problem is that the local residents, many of them elderly, therefore need to park within the shopping village because the streets around are choked with commuter cars all day long. If Hornsby Shire Council allows the village redevelopment to go ahead without increased parking spaces to cope with the extra residents, then the village will die because locals won't be able to drive in, do their shopping, and drive home. At present the signs are that the redevelopment will significantly reduce available parking, not increase it.