This is done through surveys, broken down into four categories, each of which will take about 10 to 15 minutes to complete (but of course the duration varies depending on how much you have to say). However, you do not have to do all four.
The link to the Concept Plan 2011 survey is here: http://spring.ura.gov.sg/conceptplan2011/. Do participate in the survey if you have the time, and especially if you have some opinions about how Singapore should develop.
For example, according to the Singapore Infopedia, a resource site maintained by the National Library,
Chek Jawa was up for land reclamation, intended for military training, and reclamation work was scheduled to start in December 2001. However due to public petition and feedback to preserve the very rich biodiversity of Chek Jawa, the government decided to defer reclamation on Pulau Ubin and leave the island untouched for at least another ten years.(emphasis mine) so if you are concerned with the long term future of Chek Jawa, then perhaps you can give it a mention in the survey.
Speaking of which, I've made my input with regards to sustainable growth, and I think my opinions are somewhat disapproving of private vehicles, with my ideas of establishing "no drive" zones and taxing private vehicles more to subsidise public transport (in a transparent manner, of course!).




